I HAVE CODE 12

1998 Isuzu Trooper

Tiny

2CarPros-Archives

November, 9, 2010 AT 7:43 PM

1998 Isuzu Trooper mileage: 80,000. I have Code 12 on computer and it will not idle like it is suppose to. It is fuel injected. What should I do?

FOUND 83 RELATED QUESTIONS

1 Answer

Tiny

2CarPros-Archives

November, 9, 2010 AT 7:45 PM

If a major tune-up has not been done recently, this could be the cause of your problem. Replace the spark plugs, plug wires, fuel and air filters, etc. Also, replace the oxygen sensor. In addition, service the fuel injection system. Clean the carbon deposits from the throttle bore and idle passages.

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