Cleaned TB..Now the car heaves
Joined: Sep 2007
Posts: 234
Likes: 0
From: Calgary, Alberta
Cleaned TB..Now the car heaves
Hey all,
Wondering what could be wrong. I cleaned my throttle body the other day. I disconected the sensor input and the Neg- battery before cleaning. Then cleaned out the TB...and yes I did open the move the flap when cleaning.
Usually when you let off the gas the car pulls back a bit...now that heave is a lot more prominent and it really lurches. The lurch is delayed though...you let off the gas, wait 2 sec's then the lurch comes in. I also noticed ( but i think it is gone now) that the RPM increase a bit when I push in the clutch???
Any suggestions?
Wondering what could be wrong. I cleaned my throttle body the other day. I disconected the sensor input and the Neg- battery before cleaning. Then cleaned out the TB...and yes I did open the move the flap when cleaning.
Usually when you let off the gas the car pulls back a bit...now that heave is a lot more prominent and it really lurches. The lurch is delayed though...you let off the gas, wait 2 sec's then the lurch comes in. I also noticed ( but i think it is gone now) that the RPM increase a bit when I push in the clutch???
Any suggestions?
Guest
Posts: n/a
I read the other posts 1st...
If you've tried all the resets/relearn procedures then you might have to just take it to the dealer and have them reset the throttle body position... if you want to try and get out of it for free, don't mention you tried to clean it...
If you've tried all the resets/relearn procedures then you might have to just take it to the dealer and have them reset the throttle body position... if you want to try and get out of it for free, don't mention you tried to clean it...
I had the same problem. Check out my fix and see if it works.
https://g35driver.com/forums/intake-...g-now-cel.html
https://g35driver.com/forums/intake-...g-now-cel.html
Joined: Sep 2007
Posts: 234
Likes: 0
From: Calgary, Alberta
^ Thanks Man!! I have will definately try that...I have done the relearn with no luck..but like you said, Timing is key.
I have a used TB on the way just incase though.
I have a used TB on the way just incase though.
Joined: Sep 2007
Posts: 234
Likes: 0
From: Calgary, Alberta
Originally Posted by Q45tech
Study synchronous electric motors and hysteresis to understand how you screwed it up.
If members would just disco battery before fiddling with sensor.
If members would just disco battery before fiddling with sensor.
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i recommend going and having the dealer do an IAVL reprogram which is idle air volume learn. and it should solve your problem unless you need a new throttle body assy, now as far as i know you can get a reman from the dealer for around 140 bucks and then you have a warranty with it as well
rambo
rambo
Originally Posted by nismotech1
i recommend going and having the dealer do an IAVL reprogram which is idle air volume learn. and it should solve your problem unless you need a new throttle body assy, now as far as i know you can get a reman from the dealer for around 140 bucks and then you have a warranty with it as well
rambo
rambo
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