maybe an oxygen sensor , i dont think you have a Mass Airflow Meter, so possibly a MAP sensor

Answered by Jack42
21 questions asked

I'm just a nubie, but I have a 94 Saturn which had similar symptoms. I replaced the coolant temp sensor for the PCM (NOT the gauge) and my problems have disappeared.

This little $20 piece corrected the following problems on my Saturn.

--- Rough, idle, fluctuated from 800 - 1600 rpm
--- Car died after idling for a few minutes
--- Pushing the accelerator caused the engine to choke, sputter and die
--- To start the car when warm, had to press the accelerator all the way to the floor while turning the engine over.

Here is a link to the thread where I got help.
http://www.2carpros.com/forum/94-saturn-sc2-idles-goes-up-and-down-then-wont-start-vt35660.html

Answered by wscreate
11 questions asked

Hey Gridarm,

Is the ses light lit? Most times an O2 sensor that Jack mentioned will set a code. Not sure about the MAP sensor. No mass air flow meter on your satty.

Ws is on the right track with the ECTS. It has a very large effect on the PCMs regulation of the air fuel mixture. When it fails it tells the computer it is cold even when it is hot. If it totaly fails the computer will read about 40 below. That would explain the rich mixture (black soot).

Good luck and let us know. :)
peppermrj

Answered by peppermrj
19 questions asked

Replace the ECT sensor make sure its the one for the computer not the gauge your old one will be cracked regardless of brass or plastic tip, make sure you have a replacement from saturn or equivilant from advance auto parts or autozone BWD Part# WT5029 with the brass tip and make sure your connector is corrosion free. This is 99% sure fix for your start up and choke out problem. Hope this helps you out.

Answered by barberton1
0 questions asked