Wonder if anyone has/had the same problem with Simtec70 ECU on 1998 onwards Astra G X18XE1 engine?
After engine warms up the ECU light comes on with code 0201 (believe Injector 1 code) then runs like on 3 cylinders. (swapped injectors and always 0201)
When engine cools it is then OK but still has the stored code.
Cold engine plus pre-heated ECU to 70 deg c (over!) = instant fault.
Hot engine with fault plus freezer cooled ECU (approx 10 mins) = instant clear.
Moved ECU from block and goes forever as long as you don't stop when the heat rises and eventually faults.
Can't find any fault code info on Simtec 70 in usual places - any help appreciated.
Can anyone confirm this ECU resets it's learnt map (not codes) with power off for say 1hour?