Hi there I have a 1988 delta 88 the problem is that when I start it up and drive it wants to stall out but when the temperature rises it runs alot better not to sure if this is the problem I have replaced plugs and wires and fuel filter but still runs really rough.

There are two different ignition systems for that year, depending on if it is a VIN "C" or VIN "3". Here is the firing order diagrams for both systems.


1988 Oldsmobile Delta 88 3.8 liter engine VIN "C"





Oldsmobile Delta 88 3.8 liter engine VIN "3"

crankshaft position sensor

Have your coil checked and the igniton module

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could very well be a clogged cat converter

1) Check the fuel pump pressure to be sure it is correct.

Check the spark on each plug wire with a calibrated spark tester.One can be bought at most parts stores.If two plug wires that are next to each other are bad then replace coil pack.There may also be a bad ignition module.Also check the crankshaft position sensor.

Remove battery cables, all three and clean them and replace bolts.

Coolant temperature sensor can be checked with an ohmeter.
You should be able to get the cold and hot values from your local auto parts store or a GM manual at your library.
Good place to start with the described condition .
Have you replaced the coolant lately or therm ostat?
If so it may have an air pocket.
To check this feel if you get hot air from the heater constantly or it fluctuates.

you have to have fire,fuel,compression for an engine to run,check those

Change fuel filter and check fuel pump pressure. Pump may be going bad.