2008 p0205 code only when engine is warm - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 6 Old 03-03-2014, 08:50 PM Thread Starter
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2008 p0205 code only when engine is warm

So today I drove my jeep into work fine with no issues. The problem started when I went for lunch. The jeep ran fine on the way to lunch, but after I shut off the engine grabbed my food and got back in (roughly 10-15 minutes) it threw me the check engine and started missfiring. After I drove around it eventually went away. When I left work I expected the same miss fire but it was gone. I decided to stop and the gas station on the way home and low and behold after the engine cooled slightly and was started again so did the missfire. I went home check the code and saw it was an open circuit so I tried disconnecting the connector to the injector to check to see if there was any oil on it ( got a little sloppy on my last oil change) the connector was dry. I reconnected it and fired it up and was smooth as butter. Took it around the block got it up to operating temp, pulled into the drive way turned it off, waited about 10 minutes fired it up and the missfire came back. Does any one have an idea what may be causing this? Anything would be greatly appreciated. Thanks
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post #2 of 6 Old 03-03-2014, 10:12 PM
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Put a multi meter on your ignition coil I had the same issue. Replaced my coil and my leads while I was working on it. Works perfect now.
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post #3 of 6 Old 03-03-2014, 10:39 PM
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I just went through this in Dec.

I replaced the coil and it cleared the code, but I still had a rough idle. Swapped plugs and cables, all is good now.

Change the plugs on the passenger is a bitch.

2007 JK Unlimited
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post #4 of 6 Old 03-03-2014, 10:44 PM Thread Starter
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Yea that's what I was thinking. Was hoping to avoid the plugs till at least 75k cause of how rough it was for me just to get that ignition plug off haha. I'll give the plugs and wires a go this weekend while I'm doing the wheel bearings and if that doesn't clear it up I'll do the coil as well. Thanks for the input again!
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post #5 of 6 Old 03-04-2014, 05:15 PM Thread Starter
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Just an update replaced the cables and plugs now I'm getting a p0300 random misfire and was also getting a back fire going to the store to pick up the new coil pack now
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post #6 of 6 Old 03-04-2014, 08:33 PM Thread Starter
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Alright got the new coil put in was still back firing... then I looked and saw that I switched two of the spark plug wires. Got them switched. Was running good. Took it for another test drive. Got home, shut it off, waited a couple minutes, turned it back on and the same missfire from the start was back again. I have no idea what could be causing the issue now. I used NGK G power plugs I got whatever cables they had at oriely. I'm out of ideas on what it could be. If anyone had anything else to chip it it would be appreciated before I sink all my regearing money into a shop to fix whatever the missfire is
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