I am using a ms1 extra with a zeal engineering pnp adapter for the s4 cars. I checked all the signalling through the adapter and continuity in the adapter and in the ecu to the adapter.

When trying to start the car the ecu is in flood clear mode continuously and the tps always reads 254. I am using the stock s4 tps.

Car works fine with the rtek 2.1 and no problems reading the tps or any other sensors.

Any ideas on what I should check?