Question about 1999 Mitsubishi Montero Sport
Had code for o2 sensor ,r&r sensor code gone, had codep0305 ,changed plug and wire for cyl 5, code gone now have code for random misfire. what direction do i go now?
Determine when it misfires, and isolate cylinders. a poormans method is use an infrared temperature gun (one with high range, 700 degrees or more is preferable) and with engine held at rev(say 2500) point at each exhaust port 1 by 1, misfiring holes have colder exhaust than firing holes.
If the misfire is momentary or intermittant, or caused by defective cam or crank sensors, you should see professional help...those problems require more advanced equipment to get the 1st time, unless you dont mind lobbing expensive parts randomly till you get lucky
Posted on Sep 12, 2009
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Posted on Jan 02, 2017
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