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Bad Running C4

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Old Sep 9, 2021 | 10:45 AM
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RDMarine's Avatar
RDMarine
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Default Bad Running C4

I have a C4 that has a bad miss, searches for idle and just runs terrible when it is cold. Once it goes into closed loop it smooths out and seem to run fine. I have tuned it up, dist cap, rotor, wires and plugs. I have replaced the MAP sensor which helped some. I have repaired any and all vacuum leaks I can find, I have replaced the TBI base gaskets, I have set the timing to specs,I have cleaned the idle control valves. The injectors seem to be squirting evenly. When I purchased this car someone had removed all the emission system from the car. Can anyone give me any pointers where to go next to make this car run like it should.

Thank You in advance for any information.
Bob
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Old Sep 9, 2021 | 01:39 PM
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Is it an 84? I'd check the grounds closely. Sometimes checking the basics like tps voltage,fuel pressure, and ignition timing will point you in the right direction.










i'
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