2006 Mitsubishi L200 2.5 Logo
THOMAS
THOMAS Posted on Jun 02, 2012
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BACK FIRING THROUGH THROTTLE BOY

WE ALREADY CLEAN & GRINDING THE VALVES ,TIMING BELT CHANGED(,TIMING ARE CORRECT) BUT THERE IS BACK FIRE NOW THROUGH THROTTLE BODY. IF WE RAISED THE VEHICLE WILL RAISED SLOW DOWN BACKFIRE IS OCCUR

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Anonymous

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  • Master 7,353 Answers
  • Posted on Jun 02, 2012
Anonymous
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Joined: Sep 17, 2009
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May be valve adjustment? lean? Is it rhythmic or random? If its rhythmic find out which cylinder has the problem disconnect each spark plug until the back firing stops.

5 Related Answers

Anonymous

  • 94 Answers
  • Posted on Dec 01, 2008

SOURCE: timing problem

Hi, The firing order is 1-2-3-4-5-6   Cyl. # 1-3-5 is on passenger side # 1 is in front of motor and Cyl # 2-4-6 is on drivers side # 2 in front of motor.

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Anonymous

  • Posted on Oct 18, 2008

SOURCE: Back Fires

Could you advise on the setting of gears to the timing belt

c17hydro

Greg Bernett

  • 2993 Answers
  • Posted on Mar 26, 2009

SOURCE: need engine specs for mitsubishi pajero 1996 3.5 lt 24 valve dohc

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Here ya go....get the rest of the info right now.

Anonymous

  • 59 Answers
  • Posted on Nov 13, 2010

SOURCE: 92 mighty max broke the

the timing belt is not on exact plas mor the timing of theplags are not exact ignition timing for 4 cylinder is 1,3,4,2 for a six sylinder is 1,5,3,6,4,2

saailer

David Burbee

  • 1871 Answers
  • Posted on Nov 23, 2010

SOURCE: 2001 eclipse started bogging had plugs wires cap

Hello! The Top Dead Center Sensor is the most likely culprit...However, it is not sold as a separate item and is part of the distributor...The cost of which is $350...I would suggest having the vehicle hooked up to a diagnostic machine to be certain...A diagnostic check should be under a $100...See distributor picture below...

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Guru...................saailer

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The reason I'm checking the timing belt is that there is mis-fire in 1 & 2 cylinder. If the firing order is 1,2,3,4. I have continues fire out of 1 & 2, when plug wires are pulled out of head. 3...
unplug the fuel injectors, check the olhms on all. the readings should all be the same, around 11-11.5 olhms. Any readings that are higher is a sign of a bad injector which is what your problems sounds like., putting to much fuel to a cylinder causing different fuel amounts to each cylinder and causing it to backfire out of the throttle body , excess fuel . Also remove the throttle body and clean with cleaner and a toothbrush after replacing any injectors. Or there's a simpler answer and that the cambshaft is worn-out/round causing the lifters not to open enough to let in all the fuel. A worn belt would not cause misfires only on select cylinders but rather jump timing, slipping a notch on a gear and possibly bending a valve or valves and this cause a loud clacking or a really a sign to quit running the motor because it's broke! Good luck.
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