buddies car started acting up. Only when its cold. It will hesitate and barely run under a load (it idles and revs up fine) but it you are at wot it will go like normal. Once the car warms up its fine. I was thinking either tps, maf, or computer related. check engine light is off and I dont have any way of scanning it.
94 hesitates under load but runs at wot??
- Thread starter gfcobra
- Start date
-
Sponsors (?)
I can mail your friend a paperclip and link for pulling the codes for free. Or reference the repair manual for a how-to.gfcobra said:
I would indeed start with pulling codes. If this issue just started as ambient temps cooled off, I'd also take a peek at the calibration of the ECT and IAT (give yourself all of 1 minute to ohm both out) just to see if one is reading totally out of whack (but not tossing a code because it's within absolute spec).
I might also do a water test on the wires to see if any are leaking. Some issues are amplified when an engine is cold and though the issue is still present on a hot motor, it is not felt as much (making it seem like it got better).
Good luck.
how do you pull codes on it? i imagine jump the connector, my email is [email protected] if you get a chance to send it please do. As it sits now I let it cool off and unplugged the tps... usually it wouldve acted it but did not do it with the tps unplugged. Not the best way to diagnose a problem but it definitely affected the symptons.
Here's some info on code retrieval. Do note that the self test connector on a 94-95 GT is on the passenger side of the engine compartment (not the drivers side, as some articles note).gfcobra said:
Here's another site. The repair manual also outlines the procedure nicely.
I'd also want to take a look at the TPS signal-return while the car is acting up. The wiper might be screwed up (carbon-debris can affect the reading in some positions as they age).
Good luck.
Similar threads
