89 olds dead

I Have A 1989 3.3 Olds Ceria That Back Fires Through Intake And Then It May Start And Run For To 10to 20seconds Then It Run Real Bad And Stalls Out And Then Trying To Restart It Backfires Through The Intakeand May Not Run Or Start.i Have Replaced The Crank Sensor & The 02 Sensor ,maf Sensor,idle Control Valve.i Can Not Get Any Codes To Come Up.so Does Anyone Have Any Ides On What The Problem May Be?thanks For Your Help.

You cant get any codes? Is code 12 comming up, or is there nothing, or do you not know how to bring up the codes?

Coils packs a big problem on these cars.

Take your ignition module off and have it and the coils tested. You can check the coils yourself but will need to take the module to Advance, Napa or most any good parts stores. My dad's 89 had the module fail around a year ago. Had random starts then did as yours.

I Have A 1989 3.3 Olds Ceria That Back Fires Through Intake And Then It May Start And Run For To 10to 20seconds Then It Run Real Bad And Stalls Out And Then Trying To Restart It Backfires Through The Intakeand May Not Run Or Start.i Have Replaced The Crank Sensor & The 02 Sensor ,maf Sensor,idle Control Valve.i Can Not Get Any Codes To Come Up.so Does Anyone Have Any Ides On What The Problem May Be?thanks For Your Help.

might be the timing chain slipped

might be the timing chain slippedI have a 1989 Oldsmobile Cutlass Supreme 2.8L with the same problem and I have a rebuilt engine in mine and i checked the timing chain on mine and the timing marks line up perfectly. Trust me, your timing chain has not slipped. I think the car is having a problem with coil selection and i'm trying a few things to see if i can fix my problem.