owneraudis4

I have a stage 3 B5 S4. Recently took it to a new shop and found that my last shop had completely screwed me over and didn't put any seals on the turbo system, or replace any gaskets or seals when doing cam shafts. While the shop was fixing all that they also found that the tubular exhaust manifolds had some cracks and the engine had to be pulled. After putting the engine back in I picked it up and took it home took about 5 minutes and would not go into boost. Next morning went to start it to take it back and would crank but would not start. Had it towed back to the shop the codes i am getting are
17833 - EVAP Purge Valve (N80)
P1425 - 35-00 - Short to Ground
17880 - EVAP Leak Detection Pump
P1472 - 35-00 - Short to Ground
17938 - Camshaft Timing Adjustment
P1530 - 35-00 - Short to Ground
17955 - Boost Pressure Regulation Valve (N75)
P1547 - 35-00 - Short to Ground
17697 - Boost Pressure Control Valve (N249)
P1289 - 35-00 - Short to Ground
Things I have already done. Check the entire engine harness for worn wires. Changed the fuel pump, fuel pump relay, fuel pressure regulator, Checked all fuses and replaced ecu fuses even though they weren't popped. I have a stage 3 tune from Josh Alfonso at Solo motorsports. One thing that was changed is the egt's that were tuned out were completely removed from the car do these sensors share a ground that could have been removed by taking the egt unit off.

owneraudis4

Two weeks now have now replaced the ecu and am still having the same problem the shop can't figure it out anyone have any ideas

johnkk

Just a hunch. Did you check wiring harnesses in the instrument cluster and plenum box? Could be a problem with short in a power wire before the ECU. Some of the fault code items are fed power to ECU through the cluster. After the ECU, the power feeds go all over the place.

m_haiser

i know its kinda late but i need to know if this was fixed and how? my allroad has the same codes and wont start.
no blown fuses, no bad relays that i can tell. Please

owneraudis4

Ended up being a bad cam position sensor.

m_haiser

Thank you I'll try that. I hope it's the issue because I'm stumped