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    Sorry to dig this 5 yr old thread back up but I...

    Sorry to dig this 5 yr old thread back up but I never actually got this issue sorted and have just lived with it. Just wondering if there is a way to permanently disable the P1518 code with patch or...
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    Ok I have got it to work. I had to go into Edit /...

    Ok I have got it to work. I had to go into Edit / properties / Options and tick the "allow CAX files to modify operating system memory for some controllers"
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    Lean Cruise COS3 LS1B

    Hi I have a 2003 Silverado 1mb PCM with COS3 03150003. I found the lean cruise CAX that is based on the original OS 12579405 and renamed it 03150003. I then saved it in the EFILive\V7.5\Calibrations...
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    It's all from the same donor vehicle. Everything...

    It's all from the same donor vehicle. Everything works fine and I have been driving it for 6 months but just can't figure out this small issue.
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    p1518 TAC Module serial data circuit

    Hi, I have a small issue with my conversion. It's running 2003 Silverado 1MB PCM and TAC and will throw a P1518 code if the ignition key is cycled on, off and on quicker than 3 seconds. I believe the...
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    Thanks mate, I will give it a go. Cheers

    Thanks mate, I will give it a go. Cheers
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    RPM drops the instant VSS is detected

    Hi, I have an issue with my car stumbling as soon as I start to move and it appears to be triggered by vehicle speed. I did a test by sitting on a hill with it idling in gear and holding it with the...
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    Sticky: I had to swap a couple of wires on mine to get it...

    I had to swap a couple of wires on mine to get it to work. It may have worked had I used a "null modem" adapter.
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    I don't think you will get many DTC's with the...

    I don't think you will get many DTC's with the cable cruise control module. They are more for the DBW setup with a TAC unit. I am pretty sure the cable systems are similar if not the same as the...
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    I have persevered some more with this menace and...

    I have persevered some more with this menace and manually set up the desired idle airflow as the fuel trims are not indicating any realistic data. In park neutral it is starting and revving nicely...
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    I would think it will only show active if it is...

    I would think it will only show active if it is actually operating. It could be quite a few things and I think the best way would be to test for voltage at the plug. Work out what pin is for each...
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    I think the pid GM.STATE04 may indicate if the...

    I think the pid GM.STATE04 may indicate if the cruise control is active. This may indicate if the stepper motor is faulty and all other inputs are working.
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    Ok I have had a chance to get back and sort this...

    Ok I have had a chance to get back and sort this DTC issue. I had to increase C6101 by 50% and the car now runs and revs ok but I now have a new problem. I am trying to do the RAFPN idle tuning but...
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    I don't think there is anything wrong with my map...

    I don't think there is anything wrong with my map sensor as it was working perfectly before the PCM swap and seems to indicate correctly once it idles. Could a tune related issue cause this DTC?
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    Ok thanks Joe, p0102 always comes up so I guess...

    Ok thanks Joe, p0102 always comes up so I guess it's disabled. Heres a list of the DTC's after it has been running for a few minutes.

    17263

    17264
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    Thanks Jeff I tried that and I still have the...

    Thanks Jeff I tried that and I still have the problem. What I have worked out is that it is throwing P1514 code about 4 seconds after startup and this is cutting out injectors 2, 3 & 5. I have...
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    PCM swap and DBW issue

    Hi, I have upgraded my LQ4 to DBW and am having some issues with getting it running. I originally had a 512kb pcm and cable TB and have swapped it out for a 1mb PCM from a 2003 Silverado. I also used...
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    Thanks for the info everyone, I couldn't get the...

    Thanks for the info everyone, I couldn't get the TB to open past 82% without throwing codes so I decided to install the 1mb PCM and its all good now. I have not started the engine yet and was...
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    Ok just a bit of a follow up on this one. I have...

    Ok just a bit of a follow up on this one. I have set up my 2003 silverado pedal, TAC and connected it to a 90mm LS2 throttle body (silver blade) with a x-link converter. It is not installed in the...
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    Yeah I figure it will be a long shot but I have...

    Yeah I figure it will be a long shot but I have the 1mb PCM if the 512k one does not work. I found a thread that someone stated using a 02 corvette tune had worked with a 05 truck TAC and 512kb PCM
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    Thanks everyone for the help so far. Now I have a...

    Thanks everyone for the help so far. Now I have a really stupid question. I found a 02020005 COS5 tune that was DBW but had a manual gearbox segment. My current OS is the same but 4L80e so I have...
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    I have done a bit of research and apparently the...

    I have done a bit of research and apparently the LM7 did have DBW as early as 2001 in some cases so it may be legit. If I look under system> vehicle platform> vehicle platform options it does say it...
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    Ok so I found this tune that is supposed to be...

    Ok so I found this tune that is supposed to be DBW?? There is no mention of "electronic throttle" but it does have traction control. Do you think it may work for me?
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    Thanks for the info joe. I will give it a crack

    Thanks for the info joe. I will give it a crack
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    COS5 with DBW and 4L80e

    Hi, I was wondering if anyone has a COS5 tune with DBW throttle body and 4L80e I could use as a platform for my conversion? I currently have a boosted LQ4 running with a 512kb LS1 PCM with cable TB....
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