cylinder 1 and 3 misfire?
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This is a discussion on cylinder 1 and 3 misfire? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; hey i have a 2005 wrx,mods are invidia turboback,and aem cold air intake,and a opensource map... so about a week ...

  1. #1
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    cylinder 1 and 3 misfire?

    hey i have a 2005 wrx,mods are invidia turboback,and aem cold air intake,and a opensource map... so about a week ago my friend accidentally pumped 87 octane gas into my car,i drove for like 15 minutes and my car ran fine but all of a sudden it started running horrible...i took it home and pulled the plug at the bottom of the tank and drained the gas out and filled it with premium and some good octane booster.it started throwing the cylinder 1 and 3 misfire codes after the bad gas was punped into it but i figured after the gas was gone i could clear the code and it would be fine...it is still running absolutely terrible,it misfires at idle mild throttle and wot..ive checked the coilpacks and changed the plugs and it did very little....im wondering if the gas could have clogged an injector or something...but im not sure.it smelled really strongly of gas before i changed the plugs.my car is running so bad its litterally undrivable...oh and i did a compression test on all 4 cylinders and everything seems ok so i dont think its a valve issue....any help would be very much appreciated because im not gonna lie im not the most car savy person in the world....thanks

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  3. #2
    Registered User CJ05's Avatar
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    Well, since you already check the coil packs and the spark plugs i would think the next logical thing would be to check the injectors being compression is good in all 4 cylinders.
    Bugeye Mafia #231 - 2002 WRB - sold Dec 31, 2009
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    Proud owner of 99 RS coupe with EJ205 engine and tranny swap.

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