View Full Version : SR20 no rpm signal

05-01-2020, 11:51 AM
SR20 with megasquirt ecu, has power, turns over, and connects to the laptop. When starting the fuel pump primes for a few seconds, then turn key to start the engine turns over but fuel pump doesn't turn on and theres no spark or injection. Also no rpm on lap top. If I pull the CAS out and spin it with a drill I get rpm signal, spark, and injection.
Starter is pretty fresh, tried two different CAS's with same result.

Only thing i can think of is maybe the CAS needs to be setup different in the ecu to read lower rpms.

Any ideas appreciated. Thanks.