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Power FC just put i motor and car wont idle

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Old 09-25-05, 01:48 PM
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just put i motor and car wont idle

i have a PFC and the while doing the motor swap i added 1600cc secondaries but i know that wont do anything to the idle. if i barely put my ffot on the gas and hold it at like 800 rpm the motor sounds great but when i let go it tries to idle at like 560 rpm and then dies because the idle is to low. the PFC wont contrlol the idle at all i have it set to 1200 rpm right now but the idle wont go up at all. what does the PFC use to control the idle?
Old 09-25-05, 02:27 PM
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Something is not hooked up correctly, or you changed something that has affect idle. Check all wiring, hoses, and PFC values; and if necessary manually adjust the idle up higher.
Old 10-06-05, 11:43 PM
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You have a vaccum leak.
Old 10-06-05, 11:49 PM
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Originally Posted by rx74evers
You have a vaccum leak.
That would increase the idle as the engine would get more air.
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