P0308 - #8 Cyl Misfire Detected - Ford Powerstroke Diesel Forum
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Old 03-23-2010, 07:11 PM
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P0308 - #8 Cyl Misfire Detected

I've been having an intermittent SES light so I put my cheap scanner on today and it returned the generic P0308 which I was able to clear with the scanner. I did a search here, seems to point to the #8 long lead injector which is prone to go bad right?

Questions:

Truck is running fine, can't tell there's a problem. How drastic is this? In the search, everybody else had a boatload of other codes including P0284 (balance fault).

Since this is the long lead injector, can a misfire be caused by fuel starvation due to a fuel filter needing to be changed, or a lift pump failing? I admit I've been waiting to change the fuel filter until I can get some biodiesel in it, but the local biod supplier is shut down. This filter was on the truck when I bought it, PO was deceased, so I have no idea how many miles are on it.

Diagnosing lift pump issues?

I plan on doing a regulated return, partly because it is supposed to help with fuel starvation in #8. If I remember right, once you do a regulated return, you can use a regular injector rather than the long lead on #8, so should I just wait and do the regulated return?

Ramble ramble--- thanks.


H
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Old 03-24-2010, 08:22 AM
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I would have someone run a buzz test.
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