Mechanics

WHAT CAUSES THIS VEHICLE TO RUN ON 2 CYLINDERS?

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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Darius Irwin
March 30, 2012.



Check if all the injectors are pulsing-

Rasmataz
Mar 30, 2012.
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?

Tiny
Darius Irwin
Mar 30, 2012.
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

Rasmataz
Mar 30, 2012.