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Jjeepwarrior replied to the thread Mystery P0300 root cause?.Yeah I'll just replace it as just about everything needs replacing on this car, I'm restoring the jeep apparently vs making car...
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Jjeepwarrior replied to the thread Mystery P0300 root cause?.So the engine would receive air not fuel air vapor and possibly misfire? Why wouldn't it misfire all the time then? Why only going...
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Jjeepwarrior replied to the thread Mystery P0300 root cause?.Hi, mine shows fine in scan tool live data and freeze frame and in recorded data
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Jjeepwarrior replied to the thread Mystery P0300 root cause?.Hi Pcv was replaced It's got electronic throttle body plate and feels tight no play in it, was cleaned also You mean evap canister? No...
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Jjeepwarrior replied to the thread Mystery P0300 root cause?.I know the module sometimes will set a dtc code, but sometimes they fail without a code, like a loose component inside or cold joint and...
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Jjeepwarrior replied to the thread Mystery P0300 root cause?.I'm going to hack the pcm and know it's hardware and firmware as soon as I get a chance to setup a breakout box and J box and whatever...
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Jjeepwarrior replied to the thread Mystery P0300 root cause?.It's stupid the factory service manual doesn't explain the pcm inner workings or give a logic tree so a person can know exactly what...
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Jjeepwarrior replied to the thread Mystery P0300 root cause?.So you're saying w Cruise off and overdrive on you can feel it compression braking vs feeling like you're in neutral coasting?
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Jjeepwarrior replied to the thread Mystery P0300 root cause?.Hi, So your scan tool doesn't show pcm entering open loop drive deceleration mode normally driving downhill unless Cruise control is...
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Jjeepwarrior replied to the thread Mystery P0300 root cause?.Hi, as I wrote the intake and exhaust was smoke tested for leaks, and long term fuel trims around 6% or so no indication of vaccum leak
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Jjeepwarrior replied to the thread Mystery P0300 root cause?.Thanks haha, I made a big check list as just about anything can cause misfires. I actually still have more tests to do, like borescope...
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J2007 jeep liberty v6 3.7L automatic 190k miles Hi I'm chasing down a difficult P0300 code with CEL flashing but it only happens when...
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JHi, I have a 2007 jeep liberty sport v6 3.7L automatic I wondered if someone with another 07' like mine can confirm its normal...
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