GrandAmGT.com Forum
http://www.pfyc.com GrandAmGT.com Premium Memership Signup
CustomCarGrills.com   

Go Back   GrandAmGT.com Forum > GAGT - Technical - Sponsored by www.MilzyMotorSports.com > Technical Q&A

Reply
 
Thread Tools Display Modes
Old 05-04-2010, 07:47 AM   #1
350rs
GAGT - Member
 
350rs's Avatar
 
AKA: Tom
Join Date: Mar 2008
Location: St. Louis, MO
Age: 30
Posts: 547
Vehicle: 01 GT, 89 L98 Camaro
350rs Gettin' there
Send a message via AIM to 350rs
Relearn for tps?

Is there a relearn to do once you install a new one? I never did one on my gt but it gives me trouble from time to time. Ill look at a few different places for ideas but always good to have lots of answers to same question.
350rs is offline   Reply With Quote
Old 05-04-2010, 11:12 AM   #2
westerndragon
GAGT - Member
 
westerndragon's Avatar
 
AKA: Eric
Join Date: Apr 2009
Location: Lewiston Maine
Posts: 601
Vehicle: 1999 GT1
westerndragon has a little tarnish on their crown
Send a message via Yahoo to westerndragon
i never did a relearn when i replaced my TPS

im not sure you have to do anything specific but drive the car i might be mistaken but i think it does it all on it's own
__________________
NOM NOM NOM!
westerndragon is offline   Reply With Quote
Old 05-04-2010, 11:21 AM   #3
350rs
GAGT - Member
 
350rs's Avatar
 
AKA: Tom
Join Date: Mar 2008
Location: St. Louis, MO
Age: 30
Posts: 547
Vehicle: 01 GT, 89 L98 Camaro
350rs Gettin' there
Send a message via AIM to 350rs
yea what i get from some websites is that its non adjustable and is just a plug and play kind of thing. So my next step is to test it.. what kind of numbers should this thing be putting out? How im gonna test it i have not the foggiest yet, but ill consult a few places and see what they say.
350rs is offline   Reply With Quote
Old 05-04-2010, 11:26 AM   #4
westerndragon
GAGT - Member
 
westerndragon's Avatar
 
AKA: Eric
Join Date: Apr 2009
Location: Lewiston Maine
Posts: 601
Vehicle: 1999 GT1
westerndragon has a little tarnish on their crown
Send a message via Yahoo to westerndragon
first did you buy it new and 2 im not sure about voltage # but if you can spin it with your finger it should have a spring resisting you and stop turning at about 1/2-3/4 of the way around.

my spent one spun freely and almost fell apart in my hand heh.
__________________
NOM NOM NOM!
westerndragon is offline   Reply With Quote
Old 05-04-2010, 11:44 AM   #5
350rs
GAGT - Member
 
350rs's Avatar
 
AKA: Tom
Join Date: Mar 2008
Location: St. Louis, MO
Age: 30
Posts: 547
Vehicle: 01 GT, 89 L98 Camaro
350rs Gettin' there
Send a message via AIM to 350rs
Cant remember a spring.. But it attaches around the throttle shaft which. Has a working spring. But yes it was bought new
350rs is offline   Reply With Quote
Old 05-04-2010, 12:19 PM   #6
westerndragon
GAGT - Member
 
westerndragon's Avatar
 
AKA: Eric
Join Date: Apr 2009
Location: Lewiston Maine
Posts: 601
Vehicle: 1999 GT1
westerndragon has a little tarnish on their crown
Send a message via Yahoo to westerndragon
the spring is inside the TPS and as long as you can turn the center of the sensor with out to much trouble it should be fine.

what is it doing when you drive?

are you trying to correct a high idle problem ?
__________________
NOM NOM NOM!
westerndragon is offline   Reply With Quote
Old 05-04-2010, 01:41 PM   #7
350rs
GAGT - Member
 
350rs's Avatar
 
AKA: Tom
Join Date: Mar 2008
Location: St. Louis, MO
Age: 30
Posts: 547
Vehicle: 01 GT, 89 L98 Camaro
350rs Gettin' there
Send a message via AIM to 350rs
usually driving is fine. throttle response is fine even when the idle is messed up. I got out today while it was at about 2 grand, unplugged it and it dropped down to normal cool operating speeds ( first start of the day) in like 2 seconds. I replaced this thing about a year and a half ago. But its been giving me trouble since a few months after.
350rs is offline   Reply With Quote
Old 05-04-2010, 02:24 PM   #8
westerndragon
GAGT - Member
 
westerndragon's Avatar
 
AKA: Eric
Join Date: Apr 2009
Location: Lewiston Maine
Posts: 601
Vehicle: 1999 GT1
westerndragon has a little tarnish on their crown
Send a message via Yahoo to westerndragon
have you replaced your IAC its cheap easy and it fixed my high idle when you unplug the TPS it changes a bunch of stuff and probably blasted that IAC into place

sometimes if you tap the IAC when you get the high idle it will "unstick" they get pretty gummed up over time.

the IAC manipulates a vaccuum and when its stuck in the "open" position all your PCM can do is add more fuel to fix the mix.

i HAD to fix this problem of the high idle because in the winter time if the high idle kicked in i would have trouble stopping i had to use neutral and/or kill the engine.
__________________
NOM NOM NOM!
westerndragon is offline   Reply With Quote
Old 05-04-2010, 04:06 PM   #9
350rs
GAGT - Member
 
350rs's Avatar
 
AKA: Tom
Join Date: Mar 2008
Location: St. Louis, MO
Age: 30
Posts: 547
Vehicle: 01 GT, 89 L98 Camaro
350rs Gettin' there
Send a message via AIM to 350rs
oh yes, ive replaced it. taken it out and cleaned it multiple times. ive replaced pretty much every sensor dealing with idle. i might have to just replace it again. buger is like 50 bucks though. dammit. havent tried thumping it with anything other than my finger.

i generally pop it in neutral going down the road and turn it off and on. sometimes it works in one try, sometimes not. Tends to depend on engine temp. i get lucky most often when its above 150 or so.
350rs is offline   Reply With Quote
Old 05-04-2010, 05:07 PM   #10
westerndragon
GAGT - Member
 
westerndragon's Avatar
 
AKA: Eric
Join Date: Apr 2009
Location: Lewiston Maine
Posts: 601
Vehicle: 1999 GT1
westerndragon has a little tarnish on their crown
Send a message via Yahoo to westerndragon
yeah mine was acting just like that the IAC valves are cheap crap and it doesnt take much to gum them up when i removed mine it had so much crap and crud i thought for a second i had the wrong part haha

when you replaced it you might have gotten a defective one...hmmm GM...defective...who woulda thought.
__________________
NOM NOM NOM!
westerndragon is offline   Reply With Quote
Old 05-04-2010, 05:43 PM   #11
350rs
GAGT - Member
 
350rs's Avatar
 
AKA: Tom
Join Date: Mar 2008
Location: St. Louis, MO
Age: 30
Posts: 547
Vehicle: 01 GT, 89 L98 Camaro
350rs Gettin' there
Send a message via AIM to 350rs
nah this was a BWD part from my then work ( oreilly). The warranty is out on that now. my TPS is limited lifetime though. Maybe ill try and find that receipt and change them both
350rs is offline   Reply With Quote
Old 05-04-2010, 07:25 PM   #12
AaronGTR
BlingWithBallz
 
AaronGTR's Avatar
 
AKA: Aaron
Join Date: Aug 2002
Location: Detroit area, MI
Age: 40
Posts: 12,233
Vehicle: 2000 Grand Am GT1 2dr
AaronGTR has made plenty of valid pointsAaronGTR has made plenty of valid points
The TPS itself and it's position is not adjustable... but the PCM's reading of it's voltage signal IS and there IS a procedure for teaching the PCM what voltage corresponds to 0% and 100% throttle position. The car will NOT learn this itself just from driving.

I discovered this after installing my 65mm TB and adjusting the throttle stop so the plate closed and opened properly, but at idle my scanner was still seeing 0.7% throttle, and at WOT is was only seeing 98.8%. After doing the relearn it reads correctly. So here it is...

Turn ignition key to on (but don't start engine) and leave it for 10 seconds, then turn it off for 10 seconds.
Then push the pedal down as far as it will go, turn ignition key back to on for 10 seconds again, then turn key off, then release pedal and wait another 10 seconds.
Repeat this 2-3 times to make sure it's got it. If you have a scanner you can verify it. With the ignition on and foot off the pedal it should now read 0% throttle, then push it down and the percent should rise until you are at 99-100% at WOT position.
__________________
The few, the proud, the boosted!
13.788 @ 103.73 mph (3/2011) 320 whp and 300 ft/lbs torque. (3/2011)
See it here. the total package.
AaronGTR is offline   Reply With Quote
Old 05-04-2010, 08:01 PM   #13
350rs
GAGT - Member
 
350rs's Avatar
 
AKA: Tom
Join Date: Mar 2008
Location: St. Louis, MO
Age: 30
Posts: 547
Vehicle: 01 GT, 89 L98 Camaro
350rs Gettin' there
Send a message via AIM to 350rs
never done that, simple enough. ill go do it now and report my findings in a few days. Thanks
350rs is offline   Reply With Quote
Old 05-04-2010, 08:12 PM   #14
350rs
GAGT - Member
 
350rs's Avatar
 
AKA: Tom
Join Date: Mar 2008
Location: St. Louis, MO
Age: 30
Posts: 547
Vehicle: 01 GT, 89 L98 Camaro
350rs Gettin' there
Send a message via AIM to 350rs
well immediate difference is pretty noticeable. Started and got down to 550 or so RPM immediately. It did however run pretty rough for a bit. Dont know if hitting the gas when on lets fuel into the cylinder or not. But after about 10 seconds or so it ran smooth again. I will find this again in a few days and let ya know how it came out.

Did you have to do it more than just the one session? And how did you find out about it? I searched for a hour or more and found nothing.
350rs is offline   Reply With Quote
Old 05-04-2010, 11:40 PM   #15
westerndragon
GAGT - Member
 
westerndragon's Avatar
 
AKA: Eric
Join Date: Apr 2009
Location: Lewiston Maine
Posts: 601
Vehicle: 1999 GT1
westerndragon has a little tarnish on their crown
Send a message via Yahoo to westerndragon
cool good to know i guess i was just lucky it fixed my idle issue :-) thanks aaron
__________________
NOM NOM NOM!
westerndragon is offline   Reply With Quote
Old 05-05-2010, 04:42 PM   #16
AaronGTR
BlingWithBallz
 
AaronGTR's Avatar
 
AKA: Aaron
Join Date: Aug 2002
Location: Detroit area, MI
Age: 40
Posts: 12,233
Vehicle: 2000 Grand Am GT1 2dr
AaronGTR has made plenty of valid pointsAaronGTR has made plenty of valid points
Quote:
Originally Posted by 350rs View Post
well immediate difference is pretty noticeable. Started and got down to 550 or so RPM immediately. It did however run pretty rough for a bit. Dont know if hitting the gas when on lets fuel into the cylinder or not. But after about 10 seconds or so it ran smooth again. I will find this again in a few days and let ya know how it came out.

Did you have to do it more than just the one session? And how did you find out about it? I searched for a hour or more and found nothing.

No, opening the throttle with the ignition on doesn't do anything except send a voltage signal to the PCM. Injector firing is based off the cam sensor signal... if the engine isn't running the cam isn't rotating... no injectors firing.

I found this info about the TPS learn on the DHP tuning forums. Thought I had posted it here before but I couldn't find it either so, I guess not.
__________________
The few, the proud, the boosted!
13.788 @ 103.73 mph (3/2011) 320 whp and 300 ft/lbs torque. (3/2011)
See it here. the total package.
AaronGTR is offline   Reply With Quote
Old 05-05-2010, 07:10 PM   #17
350rs
GAGT - Member
 
350rs's Avatar
 
AKA: Tom
Join Date: Mar 2008
Location: St. Louis, MO
Age: 30
Posts: 547
Vehicle: 01 GT, 89 L98 Camaro
350rs Gettin' there
Send a message via AIM to 350rs
i didnt even think to look on here though. Duh me.. but at least you didnt find it either. so i may have asked a first time question! ha!

on a side note. no problems today either. still running tip top. Idle anyway. Had a rough start again.. im gonna pull plugs this weekend and check things out.
350rs is offline   Reply With Quote
Old 05-06-2010, 12:50 PM   #18
350rs
GAGT - Member
 
350rs's Avatar
 
AKA: Tom
Join Date: Mar 2008
Location: St. Louis, MO
Age: 30
Posts: 547
Vehicle: 01 GT, 89 L98 Camaro
350rs Gettin' there
Send a message via AIM to 350rs
day two and its running fine still. the rough startup was gone today.

this thread or at LEAST the answer provided by aaron should be stickied or something.
350rs is offline   Reply With Quote
Old 05-09-2010, 10:31 AM   #19
350rs
GAGT - Member
 
350rs's Avatar
 
AKA: Tom
Join Date: Mar 2008
Location: St. Louis, MO
Age: 30
Posts: 547
Vehicle: 01 GT, 89 L98 Camaro
350rs Gettin' there
Send a message via AIM to 350rs
still a great idle. Seems to be the trick. Why oh why didnt i ask this question a year and a half and 15 sensors ago..

Thank you again aaron, you have saved yet another GAGT from the rocket launcher.
350rs is offline   Reply With Quote
Old 05-09-2010, 12:20 PM   #20
WidbyJ
GAGT - Member
 
AKA: Jesse
Join Date: Jan 2009
Location: Wenatchee, WA
Age: 57
Posts: 277
Vehicle: 1999 Malibu S/C
WidbyJ Gettin' there
Sticky This
WidbyJ is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 01:53 AM.


Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright 2011 GrandAmGT.com
CustomCarGrills.com