LynchMob
NAXJA Forum User
- Location
- Southern Alberta
I'm hoping someone might be able to explain my TPS readings ...and also suggest some other things which may be causing my current high idle.
I came across the following TPS readings:
At the 3-pin connector: A reads 6.5v; B reads 4.80 closed / 0.02 WOT; D reads 0.02 (before I added a ground it was 1.00+). These readings are as low as I can get by adjusting the rotation of the sensor. From searching I gather both A and B readings are way off. Does this mean the TPS is gone or could something else cause inaccurate readings?
Some background on my general idle problems...I was problem free untill about a month ago (when it started getting cold out). I had been experiencing, what I would call, a sticky throttle where the it would often not return to idle RPMs; if I revved up to 2500 RPMs, it wouldn't drop down at all (at stops/start up, etc this wasn't good). Popping the hood and pushing the throttle arm back would bring the idle back to normal (until the next time I brought the RPMs back up with the pedal). Cleaning out the TB, the return spring, cables etc did a bit but when I added a second throttle return spring it solved it. No problems until the current one.
DESCRIPTION of my curent high idle...
At start up I idle around 700RPM. After driving for a bit (usually a 10min freeway, 60mile/hr commute) it will drop in RPMs, when I release the pedal, but only come down to 12-1500 (usually 1200 in drive and 1500 in park). If I leave it in park idling for a while it will eventually come back down to 900-1000RPM after some time. Pushing in the throttle return has no effect. I've cleaned the IAC, TB (one year ago). I'm wondering what else to check once I get these TPS readings back to normal...vacuum leaks? How can I test the manifold gasket/TB seating?
I came across the following TPS readings:
At the 3-pin connector: A reads 6.5v; B reads 4.80 closed / 0.02 WOT; D reads 0.02 (before I added a ground it was 1.00+). These readings are as low as I can get by adjusting the rotation of the sensor. From searching I gather both A and B readings are way off. Does this mean the TPS is gone or could something else cause inaccurate readings?
Some background on my general idle problems...I was problem free untill about a month ago (when it started getting cold out). I had been experiencing, what I would call, a sticky throttle where the it would often not return to idle RPMs; if I revved up to 2500 RPMs, it wouldn't drop down at all (at stops/start up, etc this wasn't good). Popping the hood and pushing the throttle arm back would bring the idle back to normal (until the next time I brought the RPMs back up with the pedal). Cleaning out the TB, the return spring, cables etc did a bit but when I added a second throttle return spring it solved it. No problems until the current one.
DESCRIPTION of my curent high idle...
At start up I idle around 700RPM. After driving for a bit (usually a 10min freeway, 60mile/hr commute) it will drop in RPMs, when I release the pedal, but only come down to 12-1500 (usually 1200 in drive and 1500 in park). If I leave it in park idling for a while it will eventually come back down to 900-1000RPM after some time. Pushing in the throttle return has no effect. I've cleaned the IAC, TB (one year ago). I'm wondering what else to check once I get these TPS readings back to normal...vacuum leaks? How can I test the manifold gasket/TB seating?
Last edited: