roc87

i have a 92 saturn DOHC and auto.it runs great until it warms up or goes into open or closed loop?whichever it is.then it looses power and starts sputtering and skipping.when you get your speed up and ease off the gas,it smooths out.but if you accelerate it starts back.i have good plugs and wires,like i said,it runs great until it warms up.thanx in advance

onefast94sc2

check your ects and o2 sensor
also check the ects connector

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1998 sc2 loaded
no mods yet

roc87

still having trouble,started to backfire and pop a little now.not getting a check engine lite or anything.any other guesses before i pay out the big bucks?

Ssicarman

Check the ignition system. Plugs wires, coils--corrosion or spark leaks, oil in the spark plug wells.

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RiceRocket

MAP sensor..... that's more of an educated guess...

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ian12

closed loop is when engine has warmed up. now what all have you tried to repair this problem? it could be oxygen sensor or ects. two of the most common ones to be the problem. well im having trouble trying to think right now, so dont have anything else.

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97 SL2 with many goodies, check out site(needs updating

http://www.cardomain.com/ride/723437