Connection problem to 02 Camaro with HPtuners

[Bottesini]

I have recently installed a 416 into my 02 Camaro.

I have previously been able to scan and pull the tune from the car.

However, when I tried to flash a new tune into the car and was connect first through the scanner the attached error has occurred


In addition, the fuel pump does not turn on and there is no indication of fuel level.

So far I have tried the following troubleshooting:

Checked all of the fuses and relays (included the ones inside the engine bay).

Used a handheld OBDII scanner to successfully read any codes (none recorded).

Read another vehicle with the same laptop and MPVI with success.

Power is going to the fuel pump plug (large grey wire).

Appreciate any help or further trouble shooting advice.

[Bottesini]

Quick update, with my handheld diagnosis unit the fuel pump immediately kicked on and I was even able to get the motor to fire.

However, when I still got the same error when I tried to connect with HPtuners.

Could this be a ground issue that is bypassed by a handheld ?

[pajeff02]

Certainly could be. Are you running the stock engine harness?