Corrected p1092 but now
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This is a discussion on Corrected p1092 but now within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; My 02 WRX is having p0303 and sometimes p0302 could my valves have gotten hosed on the drivers side? I ...

  1. #1
    Registered User Pesche02WRX's Avatar
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    Corrected p1092 but now

    My 02 WRX is having p0303 and sometimes p0302 could my valves have gotten hosed on the drivers side? I have changed all the plugs and swapped around coil packs with the same results. sometimes around 3k rpm all fire correctly but mostly running on 3 cylinders.

    All advice welcome as my local dealer just did the fuel line recall and didnt plug in the driverside tumbler all the way and it vibrated off (among other things).

    The rebuilt motor only has about 1000 miles on it now. Very dissapointing.

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  3. #2
    Registered User wo^tron's Avatar
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    Misfire could be caused by a lot of things: Short in the harness to the injector, Bad Power Supply Lines for the plugs, faulty Fuel injectors, Loose Cam/crank position sensor, bad Crank Sproket, Crappy Timing belt setup and Leak in the intake system. Also check cylinder compression and spark plug gapping first and foremost.

    You got anything done to your car?
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  4. #3
    Registered User Pesche02WRX's Avatar
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    Break in map from P & L loaded only goes to 4k rpm
    Forged pistons and bearings
    DW 850cc
    all brand new plugs gapped .030
    Turbo XS TMIC
    Evo III Big 16g
    Injen CAI

    Like I said it was all just rebuild all new parts heads were machined, valves cut and adjusted. However my local subie dealer just performed the fuel line recall the "seeping gas" in cold weather one on the 02 WRX. The tech didnt plug in the Left side Tumbler sensor all the way and it came off, the next day I start the car it goes to almost 3k pulled a left bank to lean code and that p1092 checked and found that unpluged. After pluging it back in I still was getting misfires on cylinder 3 sometimes 2, so I put new plugs in still the same misfire, swaped the coil packs around ( having 2 working new ones helped) with the same results. could that lean bank condition cause my valves to warp, kill an injector, or jump a tooth on the timing?

  5. #4
    Registered User wo^tron's Avatar
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    wait you mentioned you got system too lean? p0171 right? or was it P0174? p0171 is usually a problem with fuel pressure or your MAF. It could trip a misfire if Im not mistaken. Did it go away after the Tumble Sensor was plugged back in?

    You got the right tempature plugs right?
    And also, when the CEL comes on does it flash or just pop up?
    Last edited by wo^tron; 09-21-2010 at 08:08 PM.
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  6. #5
    Registered User Pesche02WRX's Avatar
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    yea the p0171 cleared after I plugged in the tumblers, I got the platinum NGK plugs, and the CEL flashes the misfire, the other code that comes up is the p0546.

  7. #6
    Registered User Pesche02WRX's Avatar
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    Update, compresion test 90 psi on cyl 3, checking for spark and Injector test tomorrow. man this sucks.

  8. #7
    Registered User Pesche02WRX's Avatar
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    Solved bad coil pack on #3.

  9. #8
    The Default One SeattleJeremy's Avatar
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    How did the coil pack cause cyl #3 to have low compression?

  10. #9
    Registered User wo^tron's Avatar
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    Hmm yeah I'm kinda baffled at that one too...
    Are you sure you did the intial compression test on a warm engine?
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  11. #10
    Registered User Pesche02WRX's Avatar
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    I didnt have the fitting seated all the way second test it was @ 120 but the coil was dead. Car runs like a top again, now I just need to save my pennies to get this beast protuned @ P & L.

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