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danji 5/14/2010
2000 Nissan Frontier XE 4 Cyl 2.4L - Engine
Idle speed goes up and down
Idle speed goes up and down
1 Answer
  • Nissan Technical Advisor
    You may have an inlet system air leak or the air filter is blocked. Your fuel system could also been contaminated. Check also if ignition timing is correct. Did the check engine light appear? I recommend also having your ECM scanned for DTC.

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