My 1988 Cutlass Ciera started backfiring. It seemed as if the engine was choking or sneezing which now it isn't starting. Please HELP! me. Thx.

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Need diagram for 88 olds 3.8 engine`firing order - Fixya

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Aug 3, 2011 - need diagram for 88 olds 3.8 engine`firing order - Oldsmobile 1988 Cutlass Ciera question.

Have you checked the fuel pressure of this vehicle?

Have you checked the Cam sensor? The Cam sensor controls the injector pulse.

are you sure the engine isn't locked up can you manually turn engine??
try hitting the starter it may have a bad connections from a worn brush if by
hitting it starts cranking you no the starter needs replacing.

I think it jumped time also.

Try taking the car to Autozone or similar business for a free scan of your computer (your car is a pre-OBD2 system and your mechanic may have a scanner that reads only post-'96 autos). The scan will usually only point to problem areas, not specific components. That's where the mechanic comes in with specific tests. Good luck!

Hello! You have symptoms that point to incorrect fuel pressure.
First have the fuel pressure tested as follows; #1...engine running at idle: 13- 20 psi. #2...key on engine off: 23-30 psi. If pressure is incorrect change the fuel pump.

Does the engine "surge" at idle? If so, check the "fuel injection pressure regulator idle air control valve". Apply a vacuum to it; If fuel flows it is not the problem.


Guru.............saailer




I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Check the prrimary and secondary resistance on your coil. Also check the resistance of the plug wires and plug gap.

Wow! thats verry low miles for an 88. Check the fuel pressure at the injector. If the pressure is low the filter could be clogged or the pump is not putting out enough pressure. Replace both if the pressure is not up to par. also check the fuel relays.

Might be dirty fuel filter change the fuel filter see how it runs.