engine check light doesn't work.
 

Hi, everyone. I am rebuilding my Porsche 996. Because my immobilizer is damaged, I order a set of control unit (includes of DME, immobilizer and remote control key head.) from Ebay. These parts were pulled out from a Boxster 01 year model. I am sure the parts number are fit with my 996. (2001 model, 996 C4)

DME: 996 618 605 00 (M620 Electronic accelerator)
immobilizer: 996 618 262 03 (M535)

After installing, the engine can start and the remote function is good. but I can not read out the DEM with my PIWIS tester. It shows "DME?". and something is unusual, before I start the engine, the engine check light doesn't show up.

and my cylinder 1 and 3 don't work. (I smell the heavy gas...)

anyone can give me a suggestion?

thank you very much.