Bank 1 too lean and multiple misfire
05-22-2013, 05:41 PM
#91
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Year: 2000
Model: Cherokee
Engine: 4.0 I6
Not always. The rough idle is intermittent and not always so bad but def noticeable. This morning I forced it to throw codes, idle was rough and this time the exhaust smelt sweet, slightly like fuel. Other times the exhaust smells awful.
05-22-2013, 06:09 PM
#93
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I'm not sure but now that I think of it, kind of. I haven't done a compression test yet but plan to and a leak down test.
05-22-2013, 10:53 PM
#96
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05-22-2013, 11:48 PM
#97
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I'm not going to be able to check that out until maybe this weekend. Right now the exhaust doesn't smell sweet. This whole time I've had soot buildup on the exhaust tip.
05-23-2013, 02:06 PM
#98
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Year: 1997
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The black is because the pcm is trying to correct the lean by increasing injector pulse width on bank 2. Effectively running it rich....
05-23-2013, 04:05 PM
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Well I swapped out the "bad" #4&5 injectors, took her for a test drive around town and......I'll be damned.....jeep is idling smoother, accelerating better, no misfires or bucking. Exhaust still smells SLIGHTLY, but I'm going to guess the soot build up still in the exhaust pipe. Dumped in another can of seafoam in the gas tank. I'm hoping this finally did the trick, and if it did, THANK YOU!!! to everyone with their helpful input!!
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