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Thread: P0443 still comes on

  1. #1
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    P0443 still comes on

    Hi so I put a 2003 LQ9 using a p59 PCM into a truck deleted VATS and DTCs. All have worked but code P0443 keeps coming on. I checked my file and I have it turned off as in the code should not register and I also have the MIL turned off. I'm using TunnerPro OS 12579405. Any suggestions on what I'm doing wrong or how to fix. thank you
    Last edited by slow76_c10; 07-03-2023 at 06:29 AM.

  2. #2
    Fuel Injected! MO LS Noobie's Avatar
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    Post your BIN and XDF files and and we can look.

  3. #3
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    Can't upload XDF too large of a file
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  4. #4
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    thank you for the help

  5. #5
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    here is the XDF
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  6. #6
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    I don't see the problem with the programming, P0443 is properly turned off. Might change OS # and see what happens.

    ! have a stroked LQ9 in my 99 Yukon, using 12587603 OS, it has a more complete .XDF available. Set up for DBW and analog A/C input.

    Jeff

  7. #7
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    thank you for the reply Jeff, its driving nuts trying to figure this out

  8. #8
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    Opening your bin with HP Tuners P0443 is still enabled as is P0442, P0496 which are also an evap codes. If this is a swap there are also a lot of other codes still enabled that should be turned off. A lot of sensor 2 codes are still on and you have P0151 which is a B2S1 code off which should be left on. The P0420 and P0430 cat codes are still on too. There is probably an error in the xdf you are using. How did you come up with the 6.0L/4L60 combination? Did you start with a 5.3/4L60 and swap engine segments with a 6.0 or start with a 6.0/4L80 and swap the trans segments with a 4L60?

  9. #9
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    I didn't turn off P0151 I understand its needed. The XDF file isn't my doing I got from another forum. 6.0/4L65 came from the same donor vehicle so did the PCM.

  10. #10
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    I'm just telling you what I observed in your bin with HP Tuners editor which I would bet is accurate. Looking at it with Tunercat OBD2 shows the same thing.
    Last edited by 2xls1; 07-10-2023 at 01:28 AM.

  11. #11
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    If you can wait until tomorrow I will fix your bin and post it. HPT and TC will open bins but won't save it as a bin. I will have to flash it in a PCM and then read it back out as a bin. I won't have time to do that until tomorrow.

  12. #12
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    thank you so much I do appreciate it

  13. #13
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    Here is your bin with P0442, P0443, P0496, P0420, P0430 turned off and P0151 turned back on. Those are the only changes I made. And your VATS is set to PWM, not None. Stock VATS setting would have been Serial.
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  14. #14
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    in the future, you might try universal patcher to disable DTCs and check engine light - not sure if the results would be any better, but, the interface is more intuitive. i normally use tunerpro for 80% of the tuning activities, and then universal patcher for the DTC disable portion.

  15. #15
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    Thank you for fixing the file, I had VATS turned off. Thinking that XDF needs more work. I've tried running Universal Patcher but at first it wouldn't open on my laptop then once I got it to run it wouldn't open any if my BINS. Need to work more on this.

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