Hi, I'm new to the forum and just trying to bring my newly accuired 92 SSEi back to a good standing. Car sometimes starts bad, tach guage is constantly moving up and down in idle, car runs rough and even stalled twice on me. I currently waiting for my factory manual which is on its way. I did the scan and have a following codes come up.

**Computer codes
-engine codes
#41 - no camshaft reference signal
#66 - a/c freon low

-history codes
#18 cranc signal open or no signal
#41
#45 L.F. inlet valve circuit

Things I have done on car:
-all fluids and filters
-spark plugs & wires
-cleaned TB & MAF sensors

Where should I start looking? I have on hands: new O2 sensor, new IAC sensor, fuel filter. Going to replace them this weekend

It'* time to start looking at the various items. Look at the wiring for the ICM/crank/cam for any rubbing or breaks. Check the connectors and clean any corrosion.

I would say pull the cam sensor and turn the engine to find the cam magnet to ensure it'* there.