How do I check to see that the tps is working correctly, I have now replaced the egr, coolant temp, isc motor, and speed sensor and I'm still getting the code for isc malfunction, so from what I know I'm down to the tps or the crankshaft sensor as being the only thing left that could be wrong.

So, make sure 5v is getting to the sensor...then make sure it ranges from .4v to 3.8v output.


ride__________95 Eclipse RS : 5 speed
power________Gude cams : Jeep TB : AFX UDP : ram air : test pipe : GST catback
suspention___Hurricane F/R lower strut ties : BOMZ F/R upper strut bars : ES inserts
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Jeep TB writeup - http://www.dimensia.com:81/jimbo/JeepTBfor2gnt.html

95 Eclipse RS : 5 speed
14.76 @ 94.72mph
Jeep TB writeup - http://www.dimensia.com:81/jimbo/JeepTBfor2gnt.html

Ok if your getting a code for ISC malfunction, then the ISC is your problem, when you replaced it did you reset its position using the DRB3 tool, if not thats your problem, you need to take it into the dealer and have them do the ISC (IAC) reset function in the DRB3 tool.

Its a stepper motor with a plunger and if you have moved is position anyway it will have no idea of its position in relation to being fully closed/open.

Are you getting a crappy idle?

1998 dodge avenger 4 cyl AT
Mods are:
Not enough

yes I have replaced the isc motor and had it reset at the dealer ship, that did not work it is still malfunctioning. They ran diagnostics on it and found nothing wrong, they said the next step would be to check the wiring and replace the throttle body. The wiring is good I checked it and I'm not sure why the throttle body would suddenly stop working correctly when it is in perfect working condition. so naturally if it doesn't work and i've replaced it than one of the sensor that would control it would be not working correctly.