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  1. #1
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    1 out of 1 members liked this post. Yes Reputation No

    ATP's Spark Plug Removal

    Ok, just to follow in @entira's shoes. I swapped plugs out after going from stock to FBO. No issues when I was testing COBB Stage 1 but after flashing to S2+ I get limp mode instantly when I go WOT. I was getting misfires on cylinder 4 and 6. As well as fuel pump plausibility (2aaf) and Lambda probe behind catalytic converter 2, signal (2c78). Reset the codes and went out and went WOT, instantly got a misfire on cylinder 4 but no other codes. I pulled the plugs and got this (cylinder 1 on the left, 6 on the right):

    Click here to enlarge
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    They look pretty clean to me, any thoughts?

    Swapped in new Bosch replacements. Have not had a chance to make another pull yet.

  2. #2
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    They look pretty even from plug to plug, but that looks like a lot of crap on them, to me. How old are they?

  3. #3
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    Click here to enlarge Originally Posted by Carl Morris Click here to enlarge
    They look pretty even from plug to plug, but that looks like a lot of crap on them, to me. How old are they?
    Unfortunately, I am not sure. I have never replaced them and I have had the car for ~10k miles. Not sure when the last owner did them.

  4. #4
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    Click here to enlarge Originally Posted by ATP Click here to enlarge
    Unfortunately, I am not sure. I have never replaced them and I have had the car for ~10k miles. Not sure when the last owner did them.
    How many miles on the car total?

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  5. #5
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    How many miles on the car total?
    ~53k

  6. #6
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    Last owner probably never replaced them. They look pretty worn
    Click here to enlarge

  7. #7
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    Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
    Last owner probably never replaced them. They look pretty worn
    Fair enough, I need to run through the service records. I would hope they were replaced at one time under Maintenance but maybe not.

    Side note:

    When changing the plugs I lost the nut plate that the screw for the cowl uses on the driver side. Number 9 is the cowl, the screw goes in the front drivers side "leg". There is a nut plate for the screw. Anyone know where to get a replacement?

    Click here to enlarge

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    Hardware store or dealer. Common problem I'm afraid.
    LEMANS BLUE M-TECH E92->PROCEDE REV3::ETS 7" FMIC::RACELAND DPS::WAVETRAC DIFF::DEFIV DIFF LOCKDOWN::DEFIV OCC::DEFIV INTAKE::RB PCV

  9. #9
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    You can run that cowl with pretty much no screws at all. It will stay still. The only 2screws you need are the 2 front micro filter ones.
    John 3:16


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