2001 Oldsmobile Intrigue 6 cyl Front Wheel Drive Automatic 50000 miles
Car wouldn't crank. Found main negative ground wire bolt out 1". Tightened and car cracks, but no spark. After getting codes 335, 340, 385 (in that order) on 2001 Intrigue 3.5L, changed crank sensor, camshaft sensor, and checked for compression to assure timing chains were good.
Now get code 340, sometimes with couple of attempts 340, 335, 385 in that order and no spark.
Looked at fuses and relays and think they are all good.
Any reprogramming after replacement? Any other components? Has two coils above spark plugs, assuming they are good.