https://www.r3vlimited.com/board/ en Wed, 27 May 2026 00:49:18 GMT vBulletin 60 https://www.r3vlimited.com/board/images/misc/R3V.jpg https://www.r3vlimited.com/board/ https://www.r3vlimited.com/board/forum/e30-technical-forums/engine-drivetrain/m42/10161553-m42-swap-crank-no-start Mon, 25 May 2026 18:50:08 GMT
CPS from a running M42
ECU from a running M42
New main and fuel pump relays
Checking all fuses
Checking continuity between CPS and ECU, Fuel Pump Relay and ECU, Main Relay and ECU, Main Relay and Fuel Pump relay.

I got a suggestion that it's possible the crank pulley slipped and now the cam position sensor and crank position sensor are feeding conflicting information to the ECU so this is what I am going to check next.

If anyone else has other ideas for what might be wrong please let me know because I am starting to run out of ideas.
Thanks in advance! ]]> M42 Claytr0n https://www.r3vlimited.com/board/forum/e30-technical-forums/engine-drivetrain/m42/10161553-m42-swap-crank-no-start