missing on 2 cylinder
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missing on 2 cylinder
im working on a freinds f150 blew out a spark plug so we had to replace the head. (to far messed up for a thread repair)
So the replacement head is on and i fired it up and it runs but rough. I narrowed it down to #1 and the second on the passenger side are not firing.... I am getting spark but not fuel. I have 12v power to each injector and i traced the wire back to the pcm and the wire is good. If i manually ground the injector i can tell it will fire because the engine bogs like its getting fuel but at the wrong time.
Its only these front two cylinders. Is there anything else that would cause just those two not to fire? Is it time to find another pcm? Im out of ideas.
So the replacement head is on and i fired it up and it runs but rough. I narrowed it down to #1 and the second on the passenger side are not firing.... I am getting spark but not fuel. I have 12v power to each injector and i traced the wire back to the pcm and the wire is good. If i manually ground the injector i can tell it will fire because the engine bogs like its getting fuel but at the wrong time.
Its only these front two cylinders. Is there anything else that would cause just those two not to fire? Is it time to find another pcm? Im out of ideas.
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dvldog458
1987 - 1996 F150 & Larger F-Series Trucks
33
Oct 10, 2003 03:13 PM
