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Threw a few codes....

This is a discussion on Threw a few codes.... within the General Help forums, part of the LSx Technical Help Section category; Anyone know what these codes are? I threw them yesterday and had them ran at Autozone but the guy only ...

  1. #1
    Junior Member SunsetZ's Avatar
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    SOM
    '02 Z28

    Threw a few codes....

    Anyone know what these codes are? I threw them yesterday and had them ran at Autozone but the guy only gave me the numbers, not the actual things of what they were....

    P0135
    P0757 <--- it's this one that I worry about, I think is what he said???


    Anybody know???
    Thanks

  2. #2
    Veteran 0rion's Avatar
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    98 Formula
    06 duramax

    135 is a bank1 sensor 1 ( drivers side front)O2 heater circuit code. Do you have headers?
    757 is a shift solenoid B stuck on. Do you have an aftermarket stall?

  3. #3
    Junior Member SunsetZ's Avatar
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    Yes to both of those.... Any ideas how to fix these things?

  4. #4
    Veteran 0rion's Avatar
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    98 Formula
    06 duramax

    Both codes are fairly common with those mods. Some people have had good results switching the front O2's to bosch 13111 sensors which are actually vette rears. The heaters in those sensors are supposed to be better. I get the heater code from time to time myself. I haven't bought the bosch sensor yet because I'm still not convinced that's the answer and it's ~$80 a sensor. I've read multiple posts where that's cured peoples problems so one of these days maybe I'll break down and put them in to see for myself.
    The 757 code is another popular code with stalls. I personally haven't gotten this code and have zero experience in trying to fix it but I've read quite a bit about it. Some people just delete the code. Not sure I would do that but it's an option. Some people replace or clean that solenoid because the solenoid itself is pretty cheap I think ~$25 and it's easy to get to. Just drop the pan basically and it's on the valve body. Like I said, I don't have experience swapping that solenoid out but if you would like I'll try to dig up a write up on it. What size is your stall and how long have you had it? Also, how old is your tranny fluid? I'm wondering if you just have some trash in that solenoid that's causing it to stick open.

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