![]() ![]() An ignition coil(s) that has low output, corrosion on the coil tower(s), is carbon tracked or arcs to ground will cause the engine to misfire or run rough at all times. Fuel injector(s) that are shorted, plugged or partially restricted can cause the engine to misfire or run rough at all times. NOTE: Check connectors that might be pulled apart as the engine flexes or wires that short to ground as they pass near brackets or shorts to ground on the exhaust manifold. Poor connections, broken wiring or wiring that has shorts to ground can cause the engine to misfire or run rough at all times. An IC module that failed to correctly control the ignition coil(s) will cause the engine to misfire or run rough at all times. Spark plugs that are incorrect for the application, cracked, improperly gaped or worn can cause the engine to misfire or run rough at all times. It could pay to have a professional find the real cause. You should not drive the vehicle if the check engine light is flashing all the time, you can cause even more damage. If you've replaced everything up to the coil packs then that is most likely the cause of your dillema. This sounds like a plug or wire issue most likely so it has to be in that family, if the plugs are good, wires good and not crossed, sensors are fine, then time to replace your coil packs. Check to make sure that your plug wires haven't been crossed. Most people have the best luck with NGK copper. If you're running Platinum plugs, immediatly change to a copper plug as Platinums have no place in these motors. Check to see if they're correctly gapped and if they have any damage/corrosion. ![]() ![]() If that's not a fix, start pulling plugs. Even if that's not the problem it is reccommended to replace this peice just the same as they ALL end up going bad at some point. Just search on youtube for a how-to video. Peice is about ten bucks and is an easy install. One question, have you replaced the ECTS (Electronic Cooling Temperature Sensor)? These cause no end of different seemingly unrelated problems on Saturns. ![]()
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