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After ECM Harness Change, one week ok, now p0301 cyl 1 misfire

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Old 05-10-2022
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After ECM Harness Change, one week ok, now p0301 cyl 1 misfire

Hello Gents, Truck ran as a kitten after i change the ECM harness, just had and IMRC code and another one for the thermostat heater, removed spark plug and it was full of soot, checked resistance on the cables and they look ok compared to #2 cable, even changed coil with another good one i have and no change, only thing i see amiss is a puddle of gasoline in the hole where the injector #1 is, tried disconnecting the injector and no change on the misfire.

Should i remove the injector and see if stuck or better to just use a screwdriver as an stethoscope to see if its opening and closing?


Just changed oil on the best during the weekend and it was running fine, below is the picture of the puddle of gasoline on the injector hole and the codes shown




 
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Old 05-11-2022
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[img]blob:https://web.whatsapp.com/1e4435a2-3e97-4a3e-985f-c8f9e2ea2ac6[/img]

injector o-rings a little crusty, will replace them



Let's see what happens

IMRC Rod cover seems well in place, i sprayed carb clear here and no change in idle
 
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Old 05-11-2022
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should i tap and epoxy the cover before it blows, or there is any potentialat the other side of the rod?
 
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Old 05-12-2022
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fixed it

Truck is running fine now, this is a summary of what was done


-took off manifold
-Replaced front and back injector o-rings
-Replaced pcv valve

No Cel, no codes, truck is running well.

Excuse the squealing compressor bearing on the video, i have disconected (and taped close) the AC hoses, but have yet to fix the truck before fixing the AC


 
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