Thread: P2135 code 2004 .....SOLVED

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  1. #1 P2135 code 2004 .....SOLVED 
    GrandPrix Junkie spazzz's Avatar
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    Got the dreaded throttle position sensor code.
    The kinda needle in the haystack problem.

    All good if I don't go past half throttle. This is all happened when I had to hit it to merge into the correct lane.
    Instant pow when gassed and engine reduce power plus stabilitrak DIC.
    Checked when I got to work for wiring signs but didn't really see any(all done rather quickly)

    OK, read code, P2135 and nothing else, reset and on my merry way.
    Tomorrow I will clean throttle body and MAF and search for wire problems.

    Wish me luck.
    I am a fan of free fixes and not rabbit holes. Idon't want to buy a pedal and throttle body just to have the same thing happen when I play racekar.

    Let me know if you have encountered this POS GM experience.

    And hi yall, havent been around for awhile
    Last edited by spazzz; 1 Day Ago at 06:46 PM.
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  3. #2 Re: P2135 code 2004 
    GrandPrix Junkie spazzz's Avatar
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    The cleanings didn't do it and I checked obvious wiring issues, none apparent.
    Although I did find my TB gasket was seeping antifreeze so replaced that.

    So screw it in the name of throwing parts.
    I ordered a new Throttle body and pedal from Rockauto. At least the car is usable up to 70.
    Keeping fingers crossed
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  4. #3 Re: P2135 code 2004 .....SOLVED 
    GrandPrix Junkie spazzz's Avatar
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    The POS rips in its own little way again.

    I replaced both parts, TB and accelerator pedal. Whichever one did it, no cares. I didn't want to dick around.

    Now I am going to dissect the throttle body.
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  5. #4 Re: P2135 code 2004 .....SOLVED 
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    Glad you figured it out. I hope I donít have to deal with this one day but sure I will.
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  6. #5 Re: P2135 code 2004 .....SOLVED 
    I can't car too good. SaukRapids's Avatar
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    Quote Originally Posted by spazzz View Post
    Now I am going to dissect the throttle body.
    When you get the black piece off the throttle, it looks sealed on the inside. There's like a lip or edge around the sealed up part. I chipped that away with a tiny screwdriver then you can look in there. Think I just glued it back shut, lol.
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  7. #6 Re: P2135 code 2004 .....SOLVED 
    GrandPrix Junkie spazzz's Avatar
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    Quote Originally Posted by SaukRapids View Post
    When you get the black piece off the throttle, it looks sealed on the inside. There's like a lip or edge around the sealed up part. I chipped that away with a tiny screwdriver then you can look in there. Think I just glued it back shut, lol.
    Did you replace your throttle body?
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  8. #7 Re: P2135 code 2004 .....SOLVED 
    I can't car too good. SaukRapids's Avatar
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    Actually, no. I bought another throttle cus the car was hesitating a little under moderate load. WOT was okay. Couldn't figure it out.

    Ended up putting the gasket back in even tho my coolant ports are blocked. "I'll see a leak if my dimes come out right away!" I thought I was so cool ..until that gasket made the car run again.

    I'd taken the OEM one apart thinking it was bad. Cleaned it with a pink eraser/qtips/alcohol in there, and sealed it up.

    That spare one's still on my shelf.
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