LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Car is running rough

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Old Mar 28, 2010 | 05:06 PM
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Drew24's Avatar
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Default Car is running rough

So my car is running rough idk what it could be i changed the opti, Plugs, Plugwires, O2 sensors, cleaned my mass air flow sensor, Cleaned and reoiled the CAI, and seafomed the car. Oil pressure is good and not smoking but running really rough at idle. Anyone think they know what it could be?
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Old Mar 28, 2010 | 05:13 PM
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Maybe your fuel filter or fuel pump. I would go for the filter first
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Old Mar 28, 2010 | 05:19 PM
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I replaced the fuel filter and the pump was recently changed about a year ago. Im completely stumped
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Old Mar 28, 2010 | 05:46 PM
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Check the fuse for the engine sensors and make sure it is good.
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Old Mar 28, 2010 | 05:50 PM
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Ok checked the relays and checked for blown fuses and checked all the plug wires to make sure they are in there tight and they are no check engine light or anything.
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Old Mar 28, 2010 | 05:52 PM
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Have you tried looking at the opti harness or checking for vaccum leaks?
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Old Mar 29, 2010 | 01:56 PM
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Yeah i changed the opti harness and made sure the vacuum lines are all pluged in. I also just changed the coil and same thing
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