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Car threw THREE codes: PO200, PO300, PO400

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Old 01-12-2004, 05:18 PM
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Default Car threw THREE codes: PO200, PO300, PO400

i looked up the descriptions.....

one is exhaust gas recirculation malfuction

one is multiple cylinder malfuntions

one is multiple injector circuit misfires




what is going on?!?!?!?!?!?!?!
Old 01-12-2004, 05:29 PM
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Did you check the coilpacks and wires like everyone mentioned in the last thread?? I would bet that theres something wrong with the way they are connected consideirng why this happened in the first place
Old 01-12-2004, 05:44 PM
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yea he is checking everything now....
Old 01-12-2004, 06:53 PM
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Keep us posted... those are uncommon codes - especially together - I'd look for mechanical malfunctions!
Old 01-12-2004, 07:03 PM
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ok, everything is fixed.... well at least no more SES light...

ok the problem was in a loose fuel injector plug....

the exhaust code was to do with a problem with my car and it is making a noise which i have posted about, but never got a light, but it is throwing that code with the other so i figure that has something to do with it...

the cylinder problem, i have NO IDEA! but the light is gone, hopefully everything is fixed now! hopefully
Old 01-12-2004, 07:40 PM
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glad you guys figured it out
Old 01-12-2004, 09:07 PM
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if the fuel injector wire was unplugged, you aren't going to get adequate fuel to that cylinder...so it will misfire. usually you can tell cause the car will get really shakey. now imjust a newbie but i had a similar problemw ith my 95 gt after i did a H/C/I install. the injector plugs are not easy to unplugg so i over looked it, but once i figured it out and saw it, i plugged it back in and my misfire was cured but the computer was still upset. i just undid the negative side of teh battery and let it sit for a while, put it back on started it up and did a couple short trips (50 miles total) and the computer was back on track




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