1991 skylark dies when hot

[Owen W]

I've got a 91 skylark 3.3L that dies after idling or driving for about 20 minutes. Been chasing down the issue for about 2 months. Has new fuel pump and sender, new fuel filter, new crankshaft position sensor, coolant temp sensor and intake gaskets. At this point I'm thinking it's another sensor or injectors. Any help is appreciated.

 

[02LTD2.0]

I've got a 91 skylark 3.3L that dies after idling or driving for about 20 minutes. Been chasing down the issue for about 2 months. Has new fuel pump and sender, new fuel filter, new crankshaft position sensor, coolant temp sensor and intake gaskets. At this point I'm thinking it's another sensor or injectors. Any help is appreciated.

Have you considered that it may be a flaky Ignition Control Module? It may be malfunctioning once it gets hot.

 

[LARRY70GS]

Might be mass airflow sensor, try unplugging it and see if it still dies idling. Alternately, you could idle it until it dies, then unplug the MAF, and see if it starts back up. You'll get a CEL because the PCM doesn't see the MAF signal, but you can reset that.

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[HotZ28]

I would also be looking at the ICM, especially if it is original !