Need some assistance with the JET module [Archive]

FWGT1

08-27-2002, 02:30 PM

Ok I installed the JET module this weekend and I really do not think it is working properly. When I turn the module on and start the car, the engine idles high at like 1500 RPM. When I drive it shifts super hard. This is on a '01 GAGT. I went off the middle blue wire on the TPS sensor and the middle green wire on the MAP sensor. Now the MAP sensor is on the back side of the motor and you have to take 2 screws out to get that small black module off(right in front of the coil packs). The MAP harness plugs into that. I ran the gray wire to the wire that goes down to the sensor(at the bottom of the manifold I assume) and the green to the wire that the harness clip is attached to. Anyone have any input on what I may have done wrong, or any ideas here?? Thanks for any help!

AROD2000

08-27-2002, 02:39 PM

Check your throttle control wire
It is probably loose
This should solve your problem.

FWGT1

08-27-2002, 02:42 PM

I'll try that...they just give you that quick connector...that really seemed to big to me....maybe I will go get a smaller one

AROD2000

08-27-2002, 02:44 PM

I'm 100% sure thats the problem.
The module did the same thing to me at
first then I went back and tightened
things up a bit.

FWGT1

08-27-2002, 02:55 PM

did you tighten the quick connector on the TPS wire or the pink plug into the quick connector? and am I going off all the right wires and have that MAP set up right? does yours shift hard now? do you notice a diff? I just noticed higher shift points, maybe a little more low end power.

AROD2000

08-27-2002, 03:06 PM

Actually I threw out all that quick connector B.S. and just sawdured (I think thats how it's spelled) the whole setup together and retaped it. I didn't notice any difference considering I installed it after my CAI and SLP exhaust.
The main thing is that all the wire touch and then your shifts won't suck. If your not satified with the module box it up and send it back!! That's what I did :)

AROD2000

08-27-2002, 03:07 PM

and you would wnat to tightened the pink plug into the connector

FWGT1

08-27-2002, 03:09 PM

Thanks for the hints man...I got the SLP and the APOC CAI is on the way.

AROD2000

08-27-2002, 03:13 PM

cool you'll like both of those items.
I'm not sure what the deal with PFYC.com is
but the SLP exhaust isn't on there anymore.
But, www.lmperformance.com still carrys it for our cars.

Cliff

08-27-2002, 08:26 PM

I have a quick question to add if nobody minds.

I am pretty sure I installed this right, but the car is very late on the throttle. For instance, I will touch the gas, hear my CAI suck and THEN the car will move about 1 sec later. What could I have done wrong?

action

08-28-2002, 11:47 AM

I have JET Module installed on my car, here are some tips:

1. Throw out all those quick connectors and solder the connections, guaranteed a good connection then.

2. Run (+) power wire from a constant power source, I kept getting SES light otherwse, module shuts off 5-10 sec. after car is off now.

3. Engine will run, idle and shift differently for a day or so anytime you disconnect the battery for more that 20 min.

4. I never noticed a big difference when I first installed my module, but after a week or so I can really notice the difference. No High End flat spot on the highway now.

FWGT1

08-31-2002, 12:56 AM

where did you wire in your constant power at? from the fuse box? I am getting that SES light. Now on the MAP senson wire, which is the middle green wire...the gray wire hooks into the half of the wire that runs to the MAP sensor and the green hooks into the half of the wire that goes to the MAP sensor clip. Am I correct on these hook ups??? and the TPS wire is the middle blue wire right? Now I reinstalled this today and soldered all connections I am still getting rough shifts sometimes, but the LED is working now...should I drive it for awhile with the module on to see if it works it out??

AROD2000

09-04-2002, 10:44 AM

something like that

Dj Red E

09-26-2002, 02:28 PM

Originally posted by FWGT1
When I turn the module on and start the car, the engine idles high at like 1500 RPM. im pretty sure your not supposed to turn the jet on before you turn on the car. I always turn it on one the car is started. And mine isnt wired into a constant power source and it works fine for me.

Cliff

10-12-2002, 11:51 AM

Originally posted by Dj Red E
im pretty sure your not supposed to turn the jet on before you turn on the car. I always turn it on one the car is started. And mine isnt wired into a constant power source and it works fine for me.

Is that true? I heard the other way around..

lucky13rme

10-13-2002, 12:36 AM

well i just got mine today. Hopefully I'll be able to install it tomorrow after work. Anyways, in the paperwork that came with it it said to start the car THEN turn the jet module on.

FWGT1

10-13-2002, 01:59 AM

ok...I have mine installed. When you install it, don't use the POS quick connectors...strip the wires and solder the connections. You can find a grommet to run the wires through on the floor board on the passenger side. DONOT turn the module on and off while the car is running...this will give you a check engine light. I mounted my module in the cubby hole right underneath the radio...fits very nice. You will need to run it to a constant power source or when you start the vehicle after is has been running with the module on, the check engine light will appear. Run your power wire to the fuse block...USE A ADD A FUSE adapter..you can get these at autozone. Please do not use the piece of crap brass adapter they give you...this will only destroy one of your fuse connections. All in all I'm not very impressed with this unit...doesn't seem to do much for $200. But that is just my opinion. If you have any other questions I'm sure I could help you

Cliff

10-13-2002, 10:45 AM

Originally posted by FWGT1
ok...I have mine installed. When you install it, don't use the POS quick connectors...strip the wires and solder the connections. You can find a grommet to run the wires through on the floor board on the passenger side. DONOT turn the module on and off while the car is running...this will give you a check engine light. I mounted my module in the cubby hole right underneath the radio...fits very nice. You will need to run it to a constant power source or when you start the vehicle after is has been running with the module on, the check engine light will appear. Run your power wire to the fuse block...USE A ADD A FUSE adapter..you can get these at autozone. Please do not use the piece of crap brass adapter they give you...this will only destroy one of your fuse connections. All in all I'm not very impressed with this unit...doesn't seem to do much for $200. But that is just my opinion. If you have any other questions I'm sure I could help you

You are telling me to turn it on and then turn on the car, the guy before you is telling me to turn it on after I start the car. If I turn it on and then turn on the car, I get a SVS light and the car doesn't run right (i.e. The throttle picks up about a second late of touching the gas). If I start the car and then turn it on, no more throttle problems, no svs light.

What fuse did you use for it? I just snipped the wire and wrapped the fuse..

FWGT1

10-13-2002, 11:44 AM

Ok your running into the same problem I had with my module. The module needs to be on before you start the car...with the rough idle, you need to switch your MAP wires and I got a unit that is called Add A Fuse....little box that has 2 fuses and a wire running off it that you plug into your fuse box.

Magnum

10-13-2002, 12:08 PM

Originally posted by Cliff

You are telling me to turn it on and then turn on the car, the guy before you is telling me to turn it on after I start the car. If I turn it on and then turn on the car, I get a SVS light and the car doesn't run right (i.e. The throttle picks up about a second late of touching the gas). If I start the car and then turn it on, no more throttle problems, no svs light.

What fuse did you use for it? I just snipped the wire and wrapped the fuse..

If you use a 12V constant power source, it doesn't matter when you turn on the Jet. before ignition, after ignition, driving, whatever. Makes no difference.

Cliff

10-13-2002, 01:31 PM

Originally posted by FWGT1
Ok your running into the same problem I had with my module. The module needs to be on before you start the car...with the rough idle, you need to switch your MAP wires and I got a unit that is called Add A Fuse....little box that has 2 fuses and a wire running off it that you plug into your fuse box.

Can you be a little more specific? switch MAP wires? Where do I find this add a fuse? Does add a fuse allow it a constant power source?

Cliff

10-13-2002, 01:32 PM

Originally posted by Magnum

If you use a 12V constant power source, it doesn't matter when you turn on the Jet. before ignition, after ignition, driving, whatever. Makes no difference.

which fuse should I use that is a constant battery source without having to run the power wire to the battery?

FWGT1

10-13-2002, 05:38 PM

Geeze man did you read the instructions when you installed this? The MAP sensor wires would be the 2 wires you tied into when installing the module. Hopefully you got the right 2 wires...they are located on the middle back side of the motor, right under that small black box(which you have to remove to get to the wires). Ok next step is go to AUTOZONE and look in the fuse section...you will see a ADD A FUSE adapter...it's a simple plug in with a wire attached...you will need the small fuse size adapter. Then invest in a multimeter so that you can check voltage from the fuse box to find a constant power source. Radio Shack has a cheap portable one...should be under $20. Also do not attempt to use the Caspers TPS-TEC with the module...that will give you a SVS light and turn off your traction control.

Cliff

10-13-2002, 06:54 PM

ok, I switched the MAP wires and ran the power to the pwr mirror fuse, which seems to be constant becauase the module stays on for 3 seconds after I turn off the car. The car throttle feels alot better now, and I think it was because I had the MAP wires mixed. Only problem left is that I have a SVS light. So I will go to radioshack and get a cheap voltmeter to test out what seems like a constant power source. Thanks for your patience with me though.

FWGT1

10-13-2002, 09:46 PM

ok...now did you use the scotch connectors to tie into the wires? If you did you are probably not getting a good connection at the TPS sensor....make sure your on the right wire as well. The instructions JET gives you are crap...I had to figure most of this out on my own. One more question...are you getting rough shifts??

Cliff

10-14-2002, 11:23 AM

Originally posted by FWGT1
ok...now did you use the scotch connectors to tie into the wires? If you did you are probably not getting a good connection at the TPS sensor....make sure your on the right wire as well. The instructions JET gives you are crap...I had to figure most of this out on my own. One more question...are you getting rough shifts??

No, my shifts are actually smooth, but a little bit harder than the stock shifts, which I expected. Nothing really noticably hard though.

I redid all my splices, and I spiced them REALLY tight, so I didn't even bother with connectors. At first I had connectors, and they came loose anyway. I pretty confident that the splices I made will hold up well. The TPS wire I used is the BLUE wire that is on the 3 wire connector hidden behind the MAF, sort of underneath and to the left (facing towards the back of the engine bay) of the other 3 wire connector that is more visible. It was the only solid blue wire I found. There was one on the other connector with a stripe, but I stayed away from it. All I gotta do is get rid of this SVS light. Maybe it's my power source? or maybe I do have the wrong TPS wire....let me know man.

Thanks in advance

Dj Red E

10-14-2002, 01:19 PM

I cannot remember exactly about the wiring andd i dont really have the time to look right now before i go to work, but i know for a fact , DO NOT START THE CAR WITH THE JET ON!!!!! over a small amount of time you will need to get a new map sensor because the jet will burn it out if you sart the car with it on. This has happened to me and another person i know with the jet. Remember.... turn on car , turn on jet...turn off car then turn off jet. Make it a habit or be ready to replace your MAP sensor.

Cliff

10-14-2002, 09:39 PM

Originally posted by Dj Red E
I cannot remember exactly about the wiring andd i dont really have the time to look right now before i go to work, but i know for a fact , DO NOT START THE CAR WITH THE JET ON!!!!! over a small amount of time you will need to get a new map sensor because the jet will burn it out if you sart the car with it on. This has happened to me and another person i know with the jet. Remember.... turn on car , turn on jet...turn off car then turn off jet. Make it a habit or be ready to replace your MAP sensor.

see Magnum is saying different, but i'll take your word for it. Car is continuing to run perfectly, so I think I have all the wires right. I just want to get rid of that damn SVS light. Think im going to disconnect the battery for the night and see what happens.

FWGT1

10-15-2002, 03:17 AM

Yeah Magnum probably has the wires switched, because I sure did notice an odd sound from the manifold area when I left the car idle with the wires switched...now that I have them right...no noise. That SVS light...hmmm...I only got that what I tried to use the JET in conjunction with the TPS-TEC...is it the SVS or the SES(service engine soon) light?

Magnum

10-15-2002, 07:47 AM

It's been a year now with the Jet, and NEVER an SES light. it's internally switched, thus it turns off automatically after the car is shut off. The knob is more of an online/offline switch. Online it modifies the map signal. Offline it does not. If it were hooked up backwards to the map I could see getting an SES and eventually toasting the map sensor.

Also: If the SES is light, your car is not responding properly to the Jet. An SES light indicates the PCM is using backup fuel/spark tables, not the information the Jet provides. While the car may feel different, it's not because of the Jet.

Cliff

10-15-2002, 11:05 AM

Originally posted by Magnum
It's been a year now with the Jet, and NEVER an SES light. it's internally switched, thus it turns off automatically after the car is shut off. The knob is more of an online/offline switch. Online it modifies the map signal. Offline it does not. If it were hooked up backwards to the map I could see getting an SES and eventually toasting the map sensor.

Also: If the SES is light, your car is not responding properly to the Jet. An SES light indicates the PCM is using backup fuel/spark tables, not the information the Jet provides. While the car may feel different, it's not because of the Jet.

It is the SES light. Let me make sure of something about the MAP wires. I have the GREEN wire on the jet going towards the FRONT of the engine into the map wire, and the GRAY jet wire going towards the BACK (towards trunk)of the engine into the map wire.

I had it switched the other day, and had really bad throttle response, along with bad starts and some rough idling after I hit the gas. Just verify my map wires please so I don't go crazy with this.

Magnum

10-15-2002, 11:49 AM

I'll look around here for my install notes (I'm at work now) if I can't find them I'll check it out on the car tonight, probably around 7:00. The instructions that come with the Jet are less than complete, and I haven't had the best results with their customer service (read: they were quite rude). If I had it to do over again, I would not buy their products.

Edit: can't find the notes. I must have trashed them. I'll check out the wiring tonight.

Cliff

10-19-2002, 07:32 PM

update:

The SES light turns off only if I make sure I turn on the module AFTER the car is started. If I by mistake leave the jet on before I start the care the SES light will pop back up again. This normal?

btw: get a chance to look yet? =)

Thanks again

Magnum

10-20-2002, 11:52 AM

Sorry, I had to drop the car off at the shop after work. I've been driving around in a PT Cruiser all week! I'm picking up the car tomorrow, and I'll check.

It sounds like you're not connected to a constant power source, though. Where did you draw power from?

Cliff

10-20-2002, 01:56 PM

I ended up using the fuse for the pwr door locks. It's def. a constant power source cause the module stays lit for 3-5 secs after the ignition is turned off, then turns off. I havn't tested it with an autometer yet though.

FWGT1

10-20-2002, 03:38 PM

Cliff...tell me exactly where you found your MAP wires

Cliff

10-20-2002, 09:45 PM

Above the intake manifold, offset left a bit, a green wire going into a connector. solid light green. the connector seems to go down towards the ****pit of the car coming from further down deep into the engine.

FWGT1

10-20-2002, 10:58 PM

Ok just wanted to make sure that you were on the right wires...did you solder the connections? The TPS is specially sensitive..you need a clean connection on that wire. Make sure that it is the correct wire as well. If I have a chance tomorrow I will look at my wiring and let you know exactly how it goes. Your really not going to notice much with this module...I am getting rid of mine next summer...you might just want to box it back up and get a refund. Your money would be better spent on other mods
Thats just my opinion though.

Magnum

10-21-2002, 07:48 AM

Originally posted by FWGT1
Your really not going to notice much with this module...I am getting rid of mine next summer...you might just want to box it back up and get a refund. Your money would be better spent on other mods
Thats just my opinion though.

I second this opinion. Especially with my magnaflows. It does squat.

Dj Red E

10-21-2002, 12:43 PM

it does do a little granted its not like a break your neck difference, but there is a little more pull after 4000 rpms. it helps on the high end.

Cliff

10-21-2002, 01:31 PM

Originally posted by FWGT1
Ok just wanted to make sure that you were on the right wires...did you solder the connections? The TPS is specially sensitive..you need a clean connection on that wire. Make sure that it is the correct wire as well. If I have a chance tomorrow I will look at my wiring and let you know exactly how it goes. Your really not going to notice much with this module...I am getting rid of mine next summer...you might just want to box it back up and get a refund. Your money would be better spent on other mods
Thats just my opinion though.

yeah Im not worrying about noticing anything, I just want to make sure it's working correctly. I want to take it to the track and do runs with it turned on and then off. I have the TPS wire spliced REALLY tight (just respliced it a couple days ago) and taped nicely on a solid blue wire that's hidden behind the MAF.

action

10-21-2002, 01:49 PM

I've had my module installed since the summer. When wired to a switched source you'll constantly get a SES light unless you turn on the JET after teh car is started.

Follow my advise: Put module on a constant power source and your troubles are over. No SES light since. Module is always turned on, haven't touched the switch in months. Module shuts off 4 -5 seconds after the key is removed from the ingition.

Solder all connections those wire taps are crap

Cliff

10-21-2002, 11:03 PM

Originally posted by action
I've had my module installed since the summer. When wired to a switched source you'll constantly get a SES light unless you turn on the JET after teh car is started.

Follow my advise: Put module on a constant power source and your troubles are over. No SES light since. Module is always turned on, haven't touched the switch in months. Module shuts off 4 -5 seconds after the key is removed from the ingition.

Solder all connections those wire taps are crap

Read my posts above. I do have it on a constant power source. What fuse did you use?

Magnum

10-22-2002, 07:32 AM

With all this talk of fusing/power source stuff, it should be known that the fuse you should use is any fuse you add yourself. Drawing power from another circuit is never a good idea. Run a line to the battery or the + post in the underhood fusebox, add an inline fuse, and you never have to worry.

Rba007

10-22-2002, 12:26 PM

I just finished installing the JET Module. Huge Difference! Im lovin it. No SVS, or SES lights at all, and everything works (with the tps sensor as well). Im certainly glad Im not having any of the troubles that you guys had! I wired the jet module right into the green wire on the tps enhancer. My only issue is this: The lights on the jet, kinda flash a bit. They are always on, but always getting brighter and dimmer. The power and everything is good. Anyone else have this?

Magnum

10-23-2002, 07:41 AM

Originally posted by Rba007
I just finished installing the JET Module. Huge Difference! Im lovin it. No SVS, or SES lights at all, and everything works (with the tps sensor as well). Im certainly glad Im not having any of the troubles that you guys had! I wired the jet module right into the green wire on the tps enhancer. My only issue is this: The lights on the jet, kinda flash a bit. They are always on, but always getting brighter and dimmer. The power and everything is good. Anyone else have this?

Briefly. It was a loose connection at the TPS.

Rba007

10-23-2002, 11:37 AM

That problem seems to have taken care of itself, but heres a new one:

When I have it on before i start the car, It shifts into drive VERY hard, and is then fine. This is accompanied by a trac off light for about 30 seconds, than it goes off.

If I start the car with it off, and then turn it on, I dont have these problems. So, id say i need to do the turn off/on thing, which will be a pain (but the extra kick in the pants when I hit the gas pedal is worth it).

Aurea11

11-04-2002, 04:44 PM

Originally posted by FWGT1
. I ran the gray wire to the wire that goes down to the sensor(at the bottom of the manifold I assume) and the green to the wire that the harness clip is attached to.

What do you mean by that? Don't you connect (separately of course) both the green and the gray wires from the Jet to the middle lt green MAP wire? How do you make room for the damn connectors (I'm using higher quality 3M scotchlok ones that require no cutting or stripping)? I had to push the harness up through the manifold opening to come even close to getting enough MAP wire for 2 connectors - then the MAP bracket couldn't be bolted down so I had to zip-tie the MAP sensor to a manifold hose. Sorry about reviving this thread, but I put my Jet in and got weird chugging at idle so I already disconnected it to seek more advice :(

Magnum

11-05-2002, 11:11 AM

the easiest place to make the MAP connections is at the wiring harness clipped to the back of the alternator bracket.

Aurea11

11-08-2002, 10:31 AM

OK - I will try that next time - thanks. Also, I imagine I do not need an AFPR with the Jet Module since it automatically increases fuel pressure. Can anyone verify this or does anyone have both the Jet and AFPR?

phat_ridegt

12-12-2002, 01:15 PM

ok sorry this thread is a month old but it came up in a search and it sounded like you guys knew what you are talking about...what year/model cars are all of you using this on? i have a 98 gagt...i just ordered the jet...im sure i can figure out how to install it...if not by the instructions but by the info that was stated here...but my question is basically why do some people notice bigger gains then others...when i install the module ill have the civic cai and a full 2.5" flowmaster exhaust from the manifolds back w/ no cat or resonator will i notice some gains?...and also...anyone with a 96-98 ga...where did you mount this? i have switches in the pocket below the HVAC so i dunno where to put it! thanks!

dan

Magnum

12-15-2002, 01:01 PM

Originally posted by phat_ridegt
ok sorry this thread is a month old but it came up in a search and it sounded like you guys knew what you are talking about...what year/model cars are all of you using this on? i have a 98 gagt...i just ordered the jet...im sure i can figure out how to install it...if not by the instructions but by the info that was stated here...but my question is basically why do some people notice bigger gains then others...when i install the module ill have the civic cai and a full 2.5" flowmaster exhaust from the manifolds back w/ no cat or resonator will i notice some gains?...and also...anyone with a 96-98 ga...where did you mount this? i have switches in the pocket below the HVAC so i dunno where to put it! thanks!

dan

basically, I think you'll notice the most improvement on a stock car. The more performace mods you have, the less difference the jet will show for it.