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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It could be a fuel problem or ignition problem. To further narrow down your issue I would wait until dark remove the doghouse and start the engine. If you see arching from the ignition wires to the engine block that is where you are losing power. The 454 generates a lot of heat especially if your exhaust manifolds are leaking and can ruin ignition wires fairly quickly. Do you hear a ticking sound at idle coming from the exhaust manifolds? I have had both fuel and ignition problems causing your symptoms one was wires the other a failing fuel pump.
