Troubleshooting Injector Control Circuit
08-04-2004, 03:52 PM
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Troubleshooting Injector Control Circuit I have a ’98 S10 2.2L 4 cylinder with 90,000 miles on it. The other day, the engine started to sputter as though I were running out of fuel and the “service engine soon” light came on. A borrowed code reader brought up the following codes: P0200 Injector Control Circuit and P0304 Misfire Detected 4th Cylinder.
Has anyone dealt with this before? What’s often the root cause, a bad injector or wire? Any help on how to deal with this would be much appreciated.
Has anyone dealt with this before? What’s often the root cause, a bad injector or wire? Any help on how to deal with this would be much appreciated.
08-05-2004, 10:32 AM
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Whip out your Ohm-meter and test resistance of each injector. Disconnect each from it's harness connector, and probe across the two pins on the injector itself.
I'm betting you find the injector for cyl 4 is way out of range compared to the rest.
Let us know what you find.
I'm betting you find the injector for cyl 4 is way out of range compared to the rest.
Let us know what you find.
08-19-2004, 04:15 PM
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I ended up jiggling wires, adding fuel injector cleaner to the tank, and a new fuel filter, reset the code and so far so good. If it comes back i'll test resistance. Thanks.
