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Old 10-06-2022, 01:12 AM   #1
jeepmor
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Join Date: Apr 2014
Drives: 84 CJ7, 08 Duramax, 2014 FRS
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Chasing a P0301 code down

Been chasing this code down a bit. A page or two is discussed here.

https://www.ft86club.com/forums/show...93#post3550793

Starting a new thread since I veered so far off OP's topic of coils after I determined that was not my problem.

I hit ~7k rpm at that last little bit before shifting when making a strong pull and throw the P0301 code for misfire on cylinder one. I've shifted to troubleshooting the fuel system. I confirmed it wasn't a coil by trying a new one.

I've been searching threads and watching youtube. This video has me thinking I have a DI injector issue being it's at the tip top rpm where its DI only.


The fix looks easy pulling and cleaning, or replacing the direct injector like a port injector.

But getting to the bloody things and dealing with the DI seals looks like a shop job for me. I'd like to do it, but too busy and no backup commuter.

I'm also looking into the fuel filtration system and not finding any pics. Where is the fuel filter for this car? Quick look has me finding pictures of fuel pumps.

Last edited by jeepmor; 10-19-2022 at 09:41 PM.
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