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Re: 2000 grand am cuts off when turning or coasting
- you should check codes with professional grade scaner there should be some pendng codes
- check your tps, map,
- disconnect O2 and test drive it
- check all the wires leading to icm (especially connector with purple and yellow wires that is from your ckp (will cut off if wire is open or loose connection)
- check your cables (make sure they are fully seated on the spark plugs and are connected in the correct order)
- test fuel pressure
- are your engine mounts OK. if there is too much engine movement on turns it can create stress on wires and pull them out from connectors
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