I have a small turbo ESCOS, with some mods, Chipped ECU ( stage 2) Hybrid turbo, uprated fuel pump etc,,,

had it on the rollers and I have a problem with the ignition timing , advance/retard, not being vairable and is staying at 6 degrees all the way through the throttle position

has anyone came across this problem before , and what was the solution, we removed the uprated chip and tried another power run , but no change. Due to the problem with the ignition timing , the car is making way less than what it should.

I may need to take it to someone who has EEC4 software to download the fault codes, but I would really appreciate advise if anyone had came across this before

cheers