PCMHAMMER read with pcm in vehicle?

[Gampy]

Wire length??

Could that be a cause ... If the DLC was closer to the Pcm, would have to hack a harness (loom) to try.
It could also be what it's alongside (other wires) of, in the harness (loom).

Just guessing.

[Tazzi]

The issue is in regards to not all devices going to sleep which interrupts/fails the flash process.

I have verified this a few times now where one of a few things can occur:
1) PCMHammer takes to long to send a 'tester present' message after telling the bus to be quiet, so all modules being talking again and interrupt the flashing procedure.
2) PCMHammer attempts to begin flashing before all modules have shutup. These modules then attempt communicating at 1x VPW and break the whole routine.
3) Corrupted/damaged or plain right stupid modules which do not go to disable chatter when told to and cause problems.

Problem 1 and 2 can be fixed up by only searching for the response form the PCM to be quiet, then looping a tester present straight away for a good 5+seconds to ensure everything has responded and sleeping.

Problem 3 requires switching from 4x to 1x and attempting at that speed.

I will be making a branch to address problem 1 and 2. Problem 3 requires adding a simple checkbox for enforcing 1x only for devices which support 4x.

This should fix alot of the issues indicated.