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What causes this vehicle to run on 2 cylinders?

Tiny
DARIUS IRWIN
  • MEMBER
  • 1991 MAZDA B2600
  • 306 MILES
I am trying to repair this truck for a friend, and I cannot find what is causing it to run on 2 cylinders. The person he bought it from had been working with the computer and bought a replacement, but I don't think that it is the problem. Any help would be great.
Thanks,
Darius Irwin
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Friday, March 30th, 2012 AT 11:19 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check if all the injectors are pulsing-
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Friday, March 30th, 2012 AT 11:24 PM
Tiny
DARIUS IRWIN
  • MEMBER
  • 2 POSTS
So, if the truck starts running OK, which it did on me today when moving it from the shop, after running rough, is it the injectors? Should I be looking elsewhere, if this continues, or just replace the injectors?
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Friday, March 30th, 2012 AT 11:35 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
This what you do-check the fuel pressure if its within specs if okay-get a noid light or rent it out from the parts store and check the injectors harness if its pulsing
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Friday, March 30th, 2012 AT 11:49 PM

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