When Car warms up starts surging. Replaced spark plugs & fuel Pump but still surging
What about the wires??
Wires are OK.
Check for a vacuum leak. While its cold its in open loop mode which uses a larger amount of fuel which may be compensating for the extra air. Once it warms up and goes into closed loop the leak is noticeable because there is less fuel to compensate.
Looking for a Used S-Series in your area?
CarGurus has 800 nationwide S-Series listings starting at $995.
Search Saturn S-Series Questions
Saturn S-Series Experts