Need Help! 18:1 A/F Ratio!

Pacman · 06-02-2003, 01:23 PM

ok, i dyno'd my car again and came out with an 18:1 A/F ratio which is EXTREMELY dangerous. i think the problem is getting worse, the longer i wait. i need your help. i bought the RKSport FPR, which holds 130 psi of fuel, recently and helped out the car a little. i cannot crank up the pressure because my stock fuel pump will burst

i need to know a few things...

1) what parts are available that can resolve this?
2) where can i buy them?
3) what is installation like? how to?
4) will this work? this is a fairly new part that i dont believe has been discussed on GAGT.com before...

http://www.pfyc.com/store/merchant.m...NDER&AFFIL=gau

ANY help would great. thanks guys

Monello · 06-02-2003, 01:53 PM

Did you pressure test the fuel pump?

I can bet that its going to die on you, so its pumping out less and less psi.

Or your stock computer is acting WIERD.

This is what i would do, get the fuel pump pressure tested, if that checks out ok, which i doubt, then go to the dyno.

Disconnect the battery, then reconnect after 15mins.

Now go on the dyno, if you AF is totally different then before, your PCM is either messed up or really confused.

jaketuff · 06-02-2003, 01:59 PM

INJECTORS?

Higher capacity pump... You have the regulator to manage it right there, should be most helpful if this lean condition persists. If it is your PCM just fubarred, then you should be able to tune the ultralean condiotion out of the PCM... but then you know this man!

Of course, verify the A/F on a couple of dynos, and with a wideband 02 sniffing right in the downpipe. That is the most accurate, right in the tailpipe/muffler it will be leaner (but not too much) than precat/closer to the motor.

Out

Doug · 06-02-2003, 04:35 PM

Can you put the wideband plot on here. First if your intank pump is operating correctly its not going to burst. You will max out your stock injectors (105 psi) before you break it. Turst me. If you can get the plot on here I can help you a lot more. If you have everything on correctly. Here, Get the vacuum line situtation taken care of that I pmed you about. WOuld make you run lean though having it off would just make it think your at wot all the time. Get that fixed. To see if its fixed start the car and see what the psi is at at idle. SHould be around 48-49 with your boosted car. Now take the vaccuum line off the stock FPR and it should go up a bit. If it does that its fine. If it doesn't somethings wrong. If its too low at idle use the dial at the top to bump it up. Now if our still running lean. First get a MSD inline fuel pump. Easy install and cheap. It will make sure your fuel pressure is holding. Now if its still running lean get a small ratio FMU. Maybe like 6:1. ONly about 100 bucks on ebay but don't go high on the ratio since you have a reprogram with the RSM kit. THen if your stillllll running lean with you shouldn't be with the FMU get some injectors. THen you can do S-AFC if your not ready to blow up the car or drive it off a cliff by now.

Pacman · 06-03-2003, 01:04 AM

thanks for all your help. yeah i can't even imagine what i'd do without you guys right now. i talked to pfyc about that part and they aren't sure if it will work either but refered me to this site. i met some guys at the drag strip the other night and they checked out my car and want me to take it to their shop cause they said they could help me out. a few friends of mine have been saying to take it down there. i'll find out what they say and post up on this thread. thanks again everyone

mcgavinz26 · 06-03-2003, 07:20 AM

http://www.autoperformanceengineerin.../fuelpump.html

It may not fix your problem, but getting a new bigger fuel pump can not hurt you. If you have an in-tank pump I'd bet that the Gm universal one will work just fine for you. It works on v6 fieros, berettas, and my friends 2000 blazer, so it's probably the same on a grand am. Just go to your local auto store and ask to see a fuel pump for your car and a 1994 Beretta 3.1 automatic. If they look the same, then the Walbro pumps at that site listed for an '86 Fiero 2.8 will fit your car. I changed my fuel pump on my Beretta in my garage in about 2 hours.

Good luck.

Pacman · 06-05-2003, 04:16 PM

http://www.apexi-usa.com/electronics_safc.asp
ok i just bought the S-afc for $300 today. i am now going to a new shop that seems to know more about what they're doing (Solid-Technology, for those in New Mexico). i really wish i would've found them earlier. i was chilling at the track one night and had my hood up and the owners walked by and started asking questions about the charger and now they say they can fix the ratio so i'm going to give it a shot

things are looking good now

phantom505 · 06-05-2003, 04:39 PM

I can't say I like the way Speedlab talked to me when I was at the Dyno Edge. He claimed he could get a cam blank for the gen III motors, I told him good luck.

Pacman · 06-05-2003, 05:40 PM

they say they know a lot about domestic and import. all they know are european cars (VW and BMW). that is it. i'm done letting them work on my car

SpyhunteR · 06-05-2003, 09:47 PM

good luck and tell me how the S-AFC install goes..

.

mcgavinz26 · 06-06-2003, 04:41 AM

Dude, wait, dont install that! They just came out with the SAFC v2. It's got all the same stuff and more new features.

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2417514524

SpyhunteR · 06-06-2003, 09:32 AM

it's still the same thing................ really.

mcgavinz26 · 06-06-2003, 10:02 AM

It's got a knock sensor monitor, can be tuned 250% more percisely, password protection, warning features and a couple more safe guards. All of which were not on the old model. But yeah, I guess they're exactly the same. Or not at all actually. The second one would be very worth returning the first one if you consider you can get the new one for the same amount of money. That knock sensor is priceless for a car that has added forced induction.

Pacman · 06-07-2003, 09:11 AM

yeah, i cant return it now cause it's been ordered already. although that does look sweet. all i'm worried about right now is getting the lean problem fixed fast. a knock sensor too? i really wish i would've seen that a couple days ago

thanks to everyone for helping me find the right parts. after this i wanna do some RC injectors, MSD fuel pump, spark plugs, and MSD ignition to follow up

Pacman · 06-17-2003, 02:02 PM

ok, i ordered the apexi safc last week and got it yesterday. i took my car into the shop yesterday for an install. i won't get the car back till later tonight but i'll snap some pics for you guys. i'm having them stash the unit/screen in the glovebox. the thing looks sweet! after the install, i'm going to the dyno once again to see what the RKSport FPR and the SAFC did for my car. thanks for all the help everyone

SpyhunteR · 06-17-2003, 02:11 PM

Definately send me a pm with pictures of the wiring if you can.. send me something!!!!

Pacman · 06-17-2003, 02:18 PM

for sures spy. i'll ask the shop guys what they did as far as wiring cause im sure i wont be able to tell myself. i'll snap some pics tonight and post up here

iceman · 06-17-2003, 03:12 PM

if you need PCM schems shoot me a pm

Pacman · 06-17-2003, 06:27 PM

thanks seth. i'm just about to go pick it up now. i think i may wanna take it for a little drive too

Pacman · 06-19-2003, 12:26 AM

ok i finally got the pics onto the computer (been acting weird lately) i really like what i'm seeing. i really cant believe that this part is in my car now. it lets you monitor everything. throttle %, RPM, boost, etc. it will show you line graphs, digital gauges, percentages. i havent really seen the half of it. you can tune everything in your car using this. i'm not going to mess with the settings till i take it to the dyno. when i got to the shop, they were just finishing it up. the guy showed me how it works too. all i can say is WOW

i still need to mount it, but was it worth the $300? yes!
i wanted to have it put in the glove box, but after seeing all the read outs and graphs... it's gonna be mounted on top of the little cubby hole at an angle

here is the unit

06-02-2003, 01:23 PM	#1
Pacman GASE Totaled :( Join Date: Aug 2002 Location: Albuquerque, NM Age: 37 Posts: 771 Vehicle: 2002 Acura RSX Type-S	Need Help! 18:1 A/F Ratio! ok, i dyno'd my car again and came out with an 18:1 A/F ratio which is EXTREMELY dangerous. i think the problem is getting worse, the longer i wait. i need your help. i bought the RKSport FPR, which holds 130 psi of fuel, recently and helped out the car a little. i cannot crank up the pressure because my stock fuel pump will burst i need to know a few things... 1) what parts are available that can resolve this? 2) where can i buy them? 3) what is installation like? how to? 4) will this work? this is a fairly new part that i dont believe has been discussed on GAGT.com before... http://www.pfyc.com/store/merchant.m...NDER&AFFIL=gau ANY help would great. thanks guys __________________ Daniel R.I.P. 2000 2.4L Grand Am SE (2000- 12/11/2004)

06-02-2003, 01:53 PM	#2
Monello Boost Bro Power Join Date: Aug 2002 Location: Chicago! Age: 37 Posts: 357 Vehicle: 02 Trans Am	Did you pressure test the fuel pump? I can bet that its going to die on you, so its pumping out less and less psi. Or your stock computer is acting WIERD. This is what i would do, get the fuel pump pressure tested, if that checks out ok, which i doubt, then go to the dyno. Disconnect the battery, then reconnect after 15mins. Now go on the dyno, if you AF is totally different then before, your PCM is either messed up or really confused. __________________ 2002 Pontiac Trans Am WS-6 2001 Pontiac Grand Prix GTP

06-02-2003, 01:59 PM	#3
jaketuff GAGT - Senior Member Join Date: Aug 2002 Location: Westchester, NY Age: 43 Posts: 2,093 Vehicle: 2000 Grand Am GT Coupe	INJECTORS? Higher capacity pump... You have the regulator to manage it right there, should be most helpful if this lean condition persists. If it is your PCM just fubarred, then you should be able to tune the ultralean condiotion out of the PCM... but then you know this man! Of course, verify the A/F on a couple of dynos, and with a wideband 02 sniffing right in the downpipe. That is the most accurate, right in the tailpipe/muffler it will be leaner (but not too much) than precat/closer to the motor. Out Last edited by jaketuff; 06-02-2003 at 02:07 PM.

06-02-2003, 04:35 PM	#4
Doug Hairdryer Power Join Date: Aug 2002 Location: Dublin, OH Age: 36 Posts: 623 Vehicle: 2000 SE-T	Can you put the wideband plot on here. First if your intank pump is operating correctly its not going to burst. You will max out your stock injectors (105 psi) before you break it. Turst me. If you can get the plot on here I can help you a lot more. If you have everything on correctly. Here, Get the vacuum line situtation taken care of that I pmed you about. WOuld make you run lean though having it off would just make it think your at wot all the time. Get that fixed. To see if its fixed start the car and see what the psi is at at idle. SHould be around 48-49 with your boosted car. Now take the vaccuum line off the stock FPR and it should go up a bit. If it does that its fine. If it doesn't somethings wrong. If its too low at idle use the dial at the top to bump it up. Now if our still running lean. First get a MSD inline fuel pump. Easy install and cheap. It will make sure your fuel pressure is holding. Now if its still running lean get a small ratio FMU. Maybe like 6:1. ONly about 100 bucks on ebay but don't go high on the ratio since you have a reprogram with the RSM kit. THen if your stillllll running lean with you shouldn't be with the FMU get some injectors. THen you can do S-AFC if your not ready to blow up the car or drive it off a cliff by now. __________________ http://www.n-body.net/registry/yeahdoug/ 2000 Grand Am SE1 ex-turbo 1987 Supra Turbo 5 spd Targa 14.2 @100 with only I/E

06-03-2003, 01:04 AM	#5
Pacman GASE Totaled :( Join Date: Aug 2002 Location: Albuquerque, NM Age: 37 Posts: 771 Vehicle: 2002 Acura RSX Type-S	thanks for all your help. yeah i can't even imagine what i'd do without you guys right now. i talked to pfyc about that part and they aren't sure if it will work either but refered me to this site. i met some guys at the drag strip the other night and they checked out my car and want me to take it to their shop cause they said they could help me out. a few friends of mine have been saying to take it down there. i'll find out what they say and post up on this thread. thanks again everyone __________________ Daniel R.I.P. 2000 2.4L Grand Am SE (2000- 12/11/2004)

06-03-2003, 07:20 AM	#6
mcgavinz26 The T-inator Join Date: May 2003 Location: Warren/Flint MI Age: 39 Posts: 53 Vehicle: 1994 Beretta Z26 LA1	http://www.autoperformanceengineerin.../fuelpump.html It may not fix your problem, but getting a new bigger fuel pump can not hurt you. If you have an in-tank pump I'd bet that the Gm universal one will work just fine for you. It works on v6 fieros, berettas, and my friends 2000 blazer, so it's probably the same on a grand am. Just go to your local auto store and ask to see a fuel pump for your car and a 1994 Beretta 3.1 automatic. If they look the same, then the Walbro pumps at that site listed for an '86 Fiero 2.8 will fit your car. I changed my fuel pump on my Beretta in my garage in about 2 hours. Good luck. __________________ Scott 1994 Beretta Z26 3400 Conversion with head, intake, and exhaust work Eaton M90 3.4" pulley: 7 psi

06-05-2003, 04:16 PM	#7
Pacman GASE Totaled :( Join Date: Aug 2002 Location: Albuquerque, NM Age: 37 Posts: 771 Vehicle: 2002 Acura RSX Type-S	http://www.apexi-usa.com/electronics_safc.asp ok i just bought the S-afc for $300 today. i am now going to a new shop that seems to know more about what they're doing (Solid-Technology, for those in New Mexico). i really wish i would've found them earlier. i was chilling at the track one night and had my hood up and the owners walked by and started asking questions about the charger and now they say they can fix the ratio so i'm going to give it a shot things are looking good now __________________ Daniel R.I.P. 2000 2.4L Grand Am SE (2000- 12/11/2004)

06-05-2003, 04:39 PM	#8
phantom505 GAGTurbo Owner Join Date: Nov 2002 Location: Heltonville, IN Age: 41 Posts: 1,576 Vehicle: '02 GAGT	I can't say I like the way Speedlab talked to me when I was at the Dyno Edge. He claimed he could get a cam blank for the gen III motors, I told him good luck. __________________ It's ugly, and turbocharged! 264 HP and 284 ft/lbs at the wheels(@9psi), power curve like none other! And the transaxle to make it all work!

06-05-2003, 05:40 PM	#9
Pacman GASE Totaled :( Join Date: Aug 2002 Location: Albuquerque, NM Age: 37 Posts: 771 Vehicle: 2002 Acura RSX Type-S	they say they know a lot about domestic and import. all they know are european cars (VW and BMW). that is it. i'm done letting them work on my car __________________ Daniel R.I.P. 2000 2.4L Grand Am SE (2000- 12/11/2004)

06-05-2003, 09:47 PM	#10
SpyhunteR #1 hater AKA: Rob Join Date: Aug 2002 Location: Las Vegas Age: 38 Posts: 4,968 Vehicle: 01' 2.4T GA / 08 TBSS	good luck and tell me how the S-AFC install goes.. . __________________ Hey kids going to Vegas? Let me help you help me help you! Shoot me an email or PM for all your Vegas Night Club bottle hallucinations & strip club desires! FACEBOOKFACE! "Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall, torque is how far you take the wall with you."

06-06-2003, 04:41 AM	#11
mcgavinz26 The T-inator Join Date: May 2003 Location: Warren/Flint MI Age: 39 Posts: 53 Vehicle: 1994 Beretta Z26 LA1	Dude, wait, dont install that! They just came out with the SAFC v2. It's got all the same stuff and more new features. http://cgi.ebay.com/ebaymotors/ws/eB...tem=2417514524 __________________ Scott 1994 Beretta Z26 3400 Conversion with head, intake, and exhaust work Eaton M90 3.4" pulley: 7 psi

06-06-2003, 09:32 AM	#12
SpyhunteR #1 hater AKA: Rob Join Date: Aug 2002 Location: Las Vegas Age: 38 Posts: 4,968 Vehicle: 01' 2.4T GA / 08 TBSS	it's still the same thing................ really. __________________ Hey kids going to Vegas? Let me help you help me help you! Shoot me an email or PM for all your Vegas Night Club bottle hallucinations & strip club desires! FACEBOOKFACE! "Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall, torque is how far you take the wall with you."

06-06-2003, 10:02 AM	#13
mcgavinz26 The T-inator Join Date: May 2003 Location: Warren/Flint MI Age: 39 Posts: 53 Vehicle: 1994 Beretta Z26 LA1	It's got a knock sensor monitor, can be tuned 250% more percisely, password protection, warning features and a couple more safe guards. All of which were not on the old model. But yeah, I guess they're exactly the same. Or not at all actually. The second one would be very worth returning the first one if you consider you can get the new one for the same amount of money. That knock sensor is priceless for a car that has added forced induction. __________________ Scott 1994 Beretta Z26 3400 Conversion with head, intake, and exhaust work Eaton M90 3.4" pulley: 7 psi

06-07-2003, 09:11 AM	#14
Pacman GASE Totaled :( Join Date: Aug 2002 Location: Albuquerque, NM Age: 37 Posts: 771 Vehicle: 2002 Acura RSX Type-S	yeah, i cant return it now cause it's been ordered already. although that does look sweet. all i'm worried about right now is getting the lean problem fixed fast. a knock sensor too? i really wish i would've seen that a couple days ago thanks to everyone for helping me find the right parts. after this i wanna do some RC injectors, MSD fuel pump, spark plugs, and MSD ignition to follow up __________________ Daniel R.I.P. 2000 2.4L Grand Am SE (2000- 12/11/2004)

06-17-2003, 02:02 PM	#15
Pacman GASE Totaled :( Join Date: Aug 2002 Location: Albuquerque, NM Age: 37 Posts: 771 Vehicle: 2002 Acura RSX Type-S	Update ok, i ordered the apexi safc last week and got it yesterday. i took my car into the shop yesterday for an install. i won't get the car back till later tonight but i'll snap some pics for you guys. i'm having them stash the unit/screen in the glovebox. the thing looks sweet! after the install, i'm going to the dyno once again to see what the RKSport FPR and the SAFC did for my car. thanks for all the help everyone __________________ Daniel R.I.P. 2000 2.4L Grand Am SE (2000- 12/11/2004)*

06-17-2003, 02:11 PM	#16
SpyhunteR #1 hater AKA: Rob Join Date: Aug 2002 Location: Las Vegas Age: 38 Posts: 4,968 Vehicle: 01' 2.4T GA / 08 TBSS	Definately send me a pm with pictures of the wiring if you can.. send me something!!!! __________________ Hey kids going to Vegas? Let me help you help me help you! Shoot me an email or PM for all your Vegas Night Club bottle hallucinations & strip club desires! FACEBOOKFACE! "Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall, torque is how far you take the wall with you."

06-17-2003, 02:18 PM	#17
Pacman GASE Totaled :( Join Date: Aug 2002 Location: Albuquerque, NM Age: 37 Posts: 771 Vehicle: 2002 Acura RSX Type-S	for sures spy. i'll ask the shop guys what they did as far as wiring cause im sure i wont be able to tell myself. i'll snap some pics tonight and post up here __________________ Daniel R.I.P. 2000 2.4L Grand Am SE (2000- 12/11/2004)

06-17-2003, 03:12 PM	#18
iceman woop woop AKA: Seth Join Date: Aug 2002 Location: Cherry Hill, NJ Age: 41 Posts: 10,528 Vehicle: 97 Blazer - 84 Fiero	if you need PCM schems shoot me a pm __________________ --Seth Support GrandAmGT.com sponsors! My Picture Gallery \| GoneDragRacing.com Drag Racing Photos & Videos

06-17-2003, 06:27 PM	#19
Pacman GASE Totaled :( Join Date: Aug 2002 Location: Albuquerque, NM Age: 37 Posts: 771 Vehicle: 2002 Acura RSX Type-S	thanks seth. i'm just about to go pick it up now. i think i may wanna take it for a little drive too __________________ Daniel R.I.P. 2000 2.4L Grand Am SE (2000- 12/11/2004)

06-19-2003, 12:26 AM	#20
Pacman GASE Totaled :( Join Date: Aug 2002 Location: Albuquerque, NM Age: 37 Posts: 771 Vehicle: 2002 Acura RSX Type-S	ok i finally got the pics onto the computer (been acting weird lately) i really like what i'm seeing. i really cant believe that this part is in my car now. it lets you monitor everything. throttle %, RPM, boost, etc. it will show you line graphs, digital gauges, percentages. i havent really seen the half of it. you can tune everything in your car using this. i'm not going to mess with the settings till i take it to the dyno. when i got to the shop, they were just finishing it up. the guy showed me how it works too. all i can say is WOW i still need to mount it, but was it worth the $300? yes! i wanted to have it put in the glove box, but after seeing all the read outs and graphs... it's gonna be mounted on top of the little cubby hole at an angle here is the unit __________________ Daniel R.I.P. 2000 2.4L Grand Am SE (2000- 12/11/2004)

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