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Old 11-08-2010, 12:54 PM
itsaRAMthing itsaRAMthing is offline
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Engine: 1994-1997 360ci (5.9L) Magnum V8 230hp
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Unhappy Cylinder 5 misfire, and now cylinder 8 and a random misfire... suggestions?

Here's the skinny...
5.9L with about 158K miles on the engine. I had been getting a cylinder 5 misfire and random misfire so I swapped out the plugs (some of which looked like they had been HOT), wires (two were badly corroded), and distributor cap and rotator (bot in bad shape). The misfire codes went away for all of 15 or 20 mins. This is what I'm getting now:

P0305 Cylinder 5 Misfire Detected
FF:
Fuel Sys 1: CL
Fuel Sys 2: CL-Fault
Calc Load: 29.41%
ECT: 96F
STFT B1: 0.00%
LTFT B1: 2.34%
MAP: 4.43inHg
Eng RPM: 832
Veh speed: 26mph

P0300 Random Misfire Detected
FF: None

P0308 Cylinder 8 Misfire Detected
FF: None

So, I was thinking this could be the #5 fuel injector, but now that the random misfire has returned, I'm not so sure... I'm going to pull the injectors and plugs to see if they are burned up or anything is fowled, but I'm fairly certain its not the manifold gasket leaking by... any suggestions? I don't know what that Fuel Sys 2 is, but it's making my pocket book nervous...

thanks for the help in advance...
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