1991 P30 454 intermittent surging, power loss
Hi everyone, I just bought this 91 Damon Challenger P30 454 TBI and it has this intermittent issue at slower speeds. It doesn't do it all the time. It idles fine, has trouble accelerating, power l...
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If you replace the distributor be sure and source a GM one. All others are a **** shoot in terms of quality. The cracked reluctor can certainly be a cause for your issue. But be sure and verify your fuel pressure or you'll be chasing your tail. 1991 fuel pressure is 9-13psi.
These 454s love plug wires. Heat wears them out. What I have done is buy 'Heat shield' cloth cut to 8-10in lengths (8 of them). And slide one on each wire before placing onto the plug. I used 2000F rated. Has worked very well. Also purchase some HD ceramic ended wires.
Pull the code/s using a paperclip inserted into ports a-b of the OBD connector. Search Youtube for a video of how to and reading of flashes.
Once you get the code/s post them here.
These 454s love plug wires. Heat wears them out. What I have done is buy 'Heat shield' cloth cut to 8-10in lengths (8 of them). And slide one on each wire before placing onto the plug. I used 2000F rated. Has worked very well. Also purchase some HD ceramic ended wires.
Pull the code/s using a paperclip inserted into ports a-b of the OBD connector. Search Youtube for a video of how to and reading of flashes.
Once you get the code/s post them here.
