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#1
09-26-2002, 12:00 AM
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zc problem
i just swapped in a zc engine into my crx 6 days ago anyhow the problem is that when ever the car is on ilde it revs up and down by itself. it also effects my driving only at low rpms. it makes the car jerk forward and backwards when i drive from 1500 rpm to 3000 rpm. but when i go past 3000 rpm the car accelarates good. please help!!!
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zc in crx dx 
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#2
09-26-2002, 01:46 AM
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vacuum leak probably. check all your vacuum lines for cracks, holes, or misplacing.
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#3
09-26-2002, 02:49 AM
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what ecu you runnin. cause my friend was runnin a p30 on his sohc vtec and it surges too
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#5
09-26-2002, 09:21 AM
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i checked the lines
i thought it was my vacum lines so i had some one with a crx dx with a zc in it to do my vacum lines. his car is fine but mine still has the problem. i am tried it with the pm7 and integra ecu and the problem was still there...could it be my distributor?
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zc in crx dx
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#6
09-26-2002, 02:00 PM
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Its prolly your throttle angle sensor. Its on the side of the throttle body. Mine did the same thing just unplug it and see if it does it.. It will turn your Check light on but. it wont go up and down...
kurt
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#7
09-26-2002, 02:14 PM
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Yep I have the same problem with my ZC too, and having those urethane bushings in your motor mounts, you notice when the cars rpm's rise and fall because the car will rattle and then stop its kinda bothersome when your whole arm shakes. Thanks for that info as well i gotta check that out it might just be the engine mount bushings or the engine.
ian:smoker2:
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#8
09-26-2002, 02:23 PM
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Alright so i just tried what you said Kurt, god damn it worked like a charm. So that means my throttle angle sensor is bad or is that just how it is, if i can fix it I know where there is on sitting right know i can get cheap is that the solution to the rise and fall of the rpm's. thanks again kurt.
ian
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#10
09-27-2002, 10:15 AM
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Quote:
DOnt know if this even helps: 
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#11
09-27-2002, 10:16 AM
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