Welcome back! Glad you had a better summer this year. If I can help at all please let me know. I also have a VCX Nano to test with and an LMG on an E38. I'm not sure how much I can help, but I'm willing to try. I have a modified calibration to remove DOD ready to go but not a full BIN.

Tonight I tried to connect to my buddies 2010 Silverado 4.8l with E38 ecm using a VCX Nano GM and it initialises ok recognizing the device as a bosch MDI but when I try to connect to the ecm I keep getting this error. I see a few posts mentioning problems with the vcx nano and this program, has any...

Assuming the DBC PCMs are the only possibilities, I've found a list from LT1swap.com. To quote their page http://lt1swap.com/cable_conversion.htm What makes things nice, is GM still used a Cable throttle body in the Express Vans with the 4.8/5.3/6.0L engines until 2005 and the GTO in 2004. To allow ...

I have a 2003 Express unit setting here ... HW:12575502 SVN:12581565 - 2003 Chevrolet Express Cargo Van 2500 AWD - Automatic M30 4L60E - 5.3L LM7 I believe non IAC units do not have the hardware to do analog A/C. You might like to have a look at a 2004 Vette, I believe they are DBW, Analog A/C on a...

20200729_125034.jpg It looks like the compressor from a 2003 express van has an extra connector in the back. Not sure what it's for yet but there is a difference between what I have and what the PCM would be expecting I think if I tell it it's a van. Does anyone have a picture of the inside of a P5...

Here's your file converted to analog switching.. If I had to guess the difference between analog and analog switching.. Might just be some systems have a low pressure cycling switch and a fixed orifice system named CCOT systems(Cycling Clutch Orifice system), others have a thermal expansion valve(T...

So.. 2003 2wd silverado has a/c control over data line.. 2003 Express van has a/c controlled with a switch going thru the high pressure switch and another signal from the low pressure cycling switch goes to the ecm.. might this be analog switching?? Might be able to just find an express van bin fil...

So I see 2 ways of doing it... Work out the serial message from BCM to ECM and build a little box that sends the a/c request message.. I don't know if this will work with a missing hvac control? Do they do a handshake when started? or does it just send the message when the a/c is turned on and repe...

If I understand correctly, you are using HDW:12580786 and programed it with a bin from HDW 12583660 - SERV 12586242 - OS 12587603 - 2004 Tahoe program data pull. ?? Os is good, however, both HWID's are non IAC, I believe you need a IAC unit, IAC units have analog A/C. (Hopefully a tuner will correc...

I've been looking up how to turn on the A/C with the PCM in a swap I just did on my 76 GMC Sierra Grande and found out that the 2003 and up PCMs are all activated via Serial 2 Data from the HVAC module. Is there any way that tell the PCM that the A/C needs to be on (to turn on the fan/raise the idle...