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My 2001 Montero sport 3.0 is missing. I have replaced all plugs and plug wires and two ignition coils. The computer says multiple miss fires. I recently had to replace the timing belt and re enstall the harmonic balance. the cam sensor came off and I reenstalled it. Any Ideas.By now i'm thinking the sensor may have slipped. It cranks easy but sometimes, usually when its warm it acts as if it doesn't want too.

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  • Mitsubishi Master
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Please follow this LINK and read about the causes and repairs of engine misfires.

Posted on Nov 09, 2012

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Posted on Jan 02, 2017

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SOURCE: No fire from coil to #1 cylinder

Ok since you did all that if you want to swap around fuel injectors taking note where you put cylinder 1 injector. Lets say you swapped it with cylinder 4 . Now if you get a different code say P0304 which is for cylinder 4 misfire then you know it is your injector at fault. These are wear items and should be replaced every 100,000 miles.
Also i would suggest if you dont want to do that is get some good high octane gas when you are completely empty and fill to 1/4 tank now put in Lucas Oil fuel injector cleaner and run the car till empty. Now fill up tank with high octane gas in see if this helps. Clear code after your second tank of gas and see if the code comes back. if code does pop back up then i would do the swapping of injectors as i stated earlier. I hope this helps and good luck with the diagnosis.

Posted on Feb 21, 2009

mkv0525
  • 358 Answers

SOURCE: I have 96 gmc 350 vortec. missing really bad. Ive

ou need to check compression on all the cly. do you know which cly is dead?

Posted on Jun 12, 2009

  • 8 Answers

SOURCE: Car was running well then just refused to

its possible there are multiple coil packs usually one for each bank or one for every two cylinders. Or check for a ignition control module

Posted on Oct 08, 2010

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How to wire up an ignition on a 1999 mitisubishi Montero sport


PDF]MITSUBISHI MONTERO SPORT 1997-2004 VEHICLE ...

alarmsellout.com/.../MITSUBISHI%20MONTERO%20SPORT%201997-...
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WhatshouldIcheckfirstcodepo300/301/302


300 is a random miss fire. plugs or wires cap and rotor could be the problems. 301 is number 1 and 302 is number 2 miss firing. so that narrows it down to those two plugs wires

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Engine miss firing installed new plugs still miss fires


You may get one bad spark plug in 50 years of driving

Does that answer your question?

You did not diagnose your problem, which
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Do you have codes PO301 thru PO306?

Ignition Coils cause misfires

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1997 Saturn sl2 Code P0304-IC module cam reference


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1 Answer

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please try checking the contiunity of the ignition cable (spark plug cable) and the spark plug itself, if ok check the distribution cap and rotor for the contacts, good luck

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