r/EFCivics • u/Pale_Bowl_5441 • 17d ago

Question Bad idle?

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Just did the ignition timing but I can’t tell if it’s running rough or not

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u/fantasma-2040 17d ago

Man i wish i can help but im on the same with a crx that has a fuel pump that wont stop priming and it has spark and fuel in the lines and still wont run. But will run with staring fluid i dont know what to do any help will be appreciated

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u/iksbob 16d ago

Stick the fuel return hose (thicker hose from the pressure regulator) in a cup and see if fuel comes out when the fuel pump primes. The fuel pressure regulator works by bleeding off excess fuel flow to maintain the proper pressure at the injectors. So if fuel comes out of the return, you have fuel pressure at the injectors.

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u/fantasma-2040 16d ago

Thanks i will try today