Anybody look into this? I know I would have to tune in an idle air control motor and run the wiring for it as well as tell the computer there is no gas pedal potition sensor. You think of anything else? I may get on the Vette and GTO forums and see what all is involved. I'm sick of TBW.
Because I can't seem to keep the pins from corroding and causeing issues. I've tried everything. They seal up nice and tight and I have even packed them with dilectric grease. The pins that go to the TPS give me fits because the voltage doesn't match the gas pedal potition sensor so the car goes into limp mode. The best way to resolve that is to get rid of it lol the less there is to go wrong the better off I'll be. GM did a good job with the feel, response, and speed, it's just been problematic for me for some reason.
Well, I dont know the whole story, not quite sure what you mean by voltage matching the gas pedal sensor. If you are referring to the APS (Accelerator pedal Sensor.. this is part of the TAC (Throttle Actuator Control Module)...
I dont think you can simply take voltage measurements of the two... The ECM does have tables to change these values it reads.
Does your Desired % throttle match the scanned % throttle?
There are also Throttle vs Baro pressure tables.
Very odd to come to the conclusion of 'corroded' pins without any CEL on... but the car does go into limp mode?
well.. I will also say, I wasn't as impressed with the throttle response or feel, I had to do some tip-in, throttle tuning and 'drivability' was drastically improved, Much better than stock... anyone who has driven it will say the same. Stock 'delays' punching it, and weak light pedal driving... I mean if you look at the ECT vs TPS vs RPM vs % Max Allowable Tq on stock setting.. at Pedal half way down around 2500rpm the computer calls for only 10% tq.... change that to 100% and you feel pull just putting the pedal down just a hair at 2000rpm... once you experience that, stock just seems weak and unrefined.
As for changing throttles.... because I have gotten well off topic, my apologies:
possible causes are 1) bad ground - always leaks voltage
2) bad sensors - usually flagged
3) bad throttle - usually flagged.
Not sure if this is the same thing. But in the HPTuners forum, they talk about FI guys going into reduced power mode. Haven't had time to look into it, but I think it has something to do with the amount of air going through the MAF and throttle %. There is a setting to raise that limit.
Again, not sure if this is what your getting. Might be worth doing a quick search for "reduced power".
Good luck
I do get a cell and it's always tps/aps (don't recall exactly) voltage cooralation fault. My beat guess as to what happens is there is a voltage drop across the bad connection because of too much resistance. The computer is expecting to see x number of volts because that's where the aps is telling it where is should be but the tps sensor is reporting a different voltage because of the voltage drop across the pins that send feedback to the computer. When it does this, I go pull the conections off the TB and clean them beat I can, maybe plug it in and pull it off a few times and it foes away. Just seems I can't keep it from doing it altogether.
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