TPS test question
Thread Starter
Burning Brakes
Joined: Apr 2002
Posts: 755
Likes: 0
From: Patterson CA
TPS test question
I tested my TPS this weekend, closed it is set to .54 and as I increase the throttle it gradually climbs like it should but at WOT it only reads 3.49. According to the shop manual it should be around 4.96. Is it bad or is this okay? When I test points A & C I get a reading of 4.99.
Thanks in advance.
Thanks in advance.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: TPS test question (VetBoy89)
Loosen the upper TPS bolt and just back off the lower enough to be able to rock the TPS.
Measure current TPS idle voltage, so you can maintian base idle setting. Then rock it about the lower bolt to get the max. WOT reading.
If you cannot get much above 4.0Vdc, do the IAC base idle adjust procedure. Then increase the TPS base value to about 0.65Vdc (above 0.67Vdc the ECM may throw a code). This will allow you to get a little higher WOT TPS reading.
Measure current TPS idle voltage, so you can maintian base idle setting. Then rock it about the lower bolt to get the max. WOT reading.
If you cannot get much above 4.0Vdc, do the IAC base idle adjust procedure. Then increase the TPS base value to about 0.65Vdc (above 0.67Vdc the ECM may throw a code). This will allow you to get a little higher WOT TPS reading.
