Did heads/Cam fired up everything was good. Put it on the dyno, made a few pulls and then the car won't start and stay running. Even when you can get it to barely idle, you can pedal it but won't rev past 900. Even 1/2 throttle! It will not respond at all.
Changed cam sensor, tried a different maf, leakdown good, fuel pressure good, has a code but can't read it on HPT unless running... Autotap shows a code but won't tell you what it was... Its a 98 A4 car
Any ideas ?

 

Check your electrical connections. Maybe one of your injector harnesses came unplugged...

 

try checking the ground wires on the back of the heads

 

Connections look good, grounds are on still...

 

Could programming cause a problem, maybe it screwed the ecm ? Although it has been reflashed and still does the same thing. Not sure if something internally could have shorted or something...