skills4lou
March 13th, 2011, 06:11 AM
Here's my setup:
1998 K3500 with Vortec 7.4L
I just successfully read the PCM, changed my injector flow rates, and reflashed the PCM, so I know the hardware is working. I also made sure everything was updated (software,firmware,bootblock). Firmware is 2.07.07, Bootblock is 2.07.01,
However, when setting up 7.5Scan so I can look start logging, I can't get it to find the PCM. I entered my VIN, the correct OS, transmission. I don't have the correct engine option (NEED to find a way to get the 7.4L in the dropdown list), and approx weight.
I've also changed the controller setting to Vortec 98-00 PCM.
When I click connect it goes through various checks, and get's "Not detected" errors for PCM, ECM and TCM. (I only have a PCM, no E OR T in these trucks).
So, scantool V7.5 only communicates with the V2 box. Yes, I double checked the cabling.
Also, when trying to use the V2 box standalone, it powered up fine from the cable, and I can use the various menu options. However, when selecting anything that needs to talk with the PCM, I get an error message "options.txt" not found.
So it seems to me that the tune tool software had no problem connecting to the PCM, but standalone and Scan tool can't do it. Please help.
1998 K3500 with Vortec 7.4L
I just successfully read the PCM, changed my injector flow rates, and reflashed the PCM, so I know the hardware is working. I also made sure everything was updated (software,firmware,bootblock). Firmware is 2.07.07, Bootblock is 2.07.01,
However, when setting up 7.5Scan so I can look start logging, I can't get it to find the PCM. I entered my VIN, the correct OS, transmission. I don't have the correct engine option (NEED to find a way to get the 7.4L in the dropdown list), and approx weight.
I've also changed the controller setting to Vortec 98-00 PCM.
When I click connect it goes through various checks, and get's "Not detected" errors for PCM, ECM and TCM. (I only have a PCM, no E OR T in these trucks).
So, scantool V7.5 only communicates with the V2 box. Yes, I double checked the cabling.
Also, when trying to use the V2 box standalone, it powered up fine from the cable, and I can use the various menu options. However, when selecting anything that needs to talk with the PCM, I get an error message "options.txt" not found.
So it seems to me that the tune tool software had no problem connecting to the PCM, but standalone and Scan tool can't do it. Please help.