TPS?
the ECU can not warn of bad TPS only those totally shorted or open full time.
but all other odd things, it thinks the human is doing that and ignores most TPS glitches.
eg: fast foot fails. ECU thinks you did it slow; it dont know that until too late. (maf proves , reality late) (enrich mode failure)
eg2: Slow foot works. sure, that always works as that is the MAF'S job. enrich mode , is not active here.
the fast foot, adds fuel to the AFR, we before the MAF can react.
the TPS does that,
many bad TPS, 100kmiles. will drop out with a fast foot. (the carbon in side is worn) and are always intermittent at the time failed.
for sure this is spark drop out
or fuel starvation,
finding out which is hard.
since it wakes up, at WOT, then id say, its not spark. but
the top magazine guy on this is, a guy named WARREN (last name) at motormag
he uses 2 ways.
1: add propane at bog, (hose thru fire wall)
2: or use a fake TPS,
the first way proves its lean ,as you crack the propane valve. bang power back.
the second way
is a 5k ohm resistor in a box wire to the TP pin..
driver one drives, passenger 2, plays with pot.
driver 2 watches driver 1 and sees his foot move down, and he mimics this with his POT.
bang, fixed. bad TPS.
I have all his published articles. love that guy. they are on line too.
he does the same with bad MAF or bad MAP. same trick. (the trick if substitution, and not a new $200 TPS) or $1000 MAF.
the ECU can not warn of bad TPS only those totally shorted or open full time.
but all other odd things, it thinks the human is doing that and ignores most TPS glitches.
eg: fast foot fails. ECU thinks you did it slow; it dont know that until too late. (maf proves , reality late) (enrich mode failure)
eg2: Slow foot works. sure, that always works as that is the MAF'S job. enrich mode , is not active here.
the fast foot, adds fuel to the AFR, we before the MAF can react.
the TPS does that,
many bad TPS, 100kmiles. will drop out with a fast foot. (the carbon in side is worn) and are always intermittent at the time failed.
for sure this is spark drop out
or fuel starvation,
finding out which is hard.
since it wakes up, at WOT, then id say, its not spark. but
the top magazine guy on this is, a guy named WARREN (last name) at motormag
he uses 2 ways.
1: add propane at bog, (hose thru fire wall)
2: or use a fake TPS,
the first way proves its lean ,as you crack the propane valve. bang power back.
the second way
is a 5k ohm resistor in a box wire to the TP pin..
driver one drives, passenger 2, plays with pot.
driver 2 watches driver 1 and sees his foot move down, and he mimics this with his POT.
bang, fixed. bad TPS.
I have all his published articles. love that guy. they are on line too.
he does the same with bad MAF or bad MAP. same trick. (the trick if substitution, and not a new $200 TPS) or $1000 MAF.
http://www.fixkick.com