possible electrical/ecm problems
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From: Mason Michigan
possible electrical/ecm problems
Well I was driving my truck the other day and it was running fine until I came to a stop and then I noticed it had no power. So I took off and the passenger side sounded dead, other then popping out the like the exhaust like it was trying to fire. So I get home pull codes and first off the readout for how many cylinders it has varied from 4 to 6. No other codes other than insufficient egr, which its had for years. So I do a spark check and every cylinder is getting spark and fuel. But I used a heat gun and passenger side bank is running a good 100 degrees cooler than driver side on each cylinder. So today I tinker with it and the driver side starts missing. Not really sure where to starr, but seems to me like electrical. Maybe thinking weak coil or bad ecm. Truck is a 97 350 with a 351 and e40d. Any help or input would be great. Thanks.
Fleet Owner
Joined: Aug 2005
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From: Easton,Ks
I would guess low fuel pressure. I think you need to put a fuel pressure gauge on it.
As far as the number of cylinders I think that read out is at the start of the KOER and the codes are used to verify the proper PCM is installed and that the Self-Test has been entered. I think the number of cylinders are in the software of the computer. Four = 8 cylinders. A 6 would = 12 cylinders.
As far as the number of cylinders I think that read out is at the start of the KOER and the codes are used to verify the proper PCM is installed and that the Self-Test has been entered. I think the number of cylinders are in the software of the computer. Four = 8 cylinders. A 6 would = 12 cylinders.
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From: Mason Michigan
I was thinking low fuel pressure myself. I switched between both tanks and no change. I can't see both pumps getting weak at the same time. I'd like to put a tester on it just be sure though. I was looking at it a few minutes ago and found a bare wire leading to the plug for the coil. This seems like a good start, but not totally convinced that will do it.
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feo_nuts
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Aug 4, 2011 09:42 PM
