ECM shut down relay

[99black]

If the voltage’s and the grounds are good. But the negative for the shut down relay is not there does that mean the ECM is bad.

 

[jjvw]

More likely, it means there is a problem with an engine sensor that is triggering the auto shut down relay.

What is the last thing you did to the engine?

 

[99black]

Haven’t done anything to engine for long time. It cranks fine fuel pump works. But now spark. One of the main things I fined there is no negative from the ECM that controls the shut down relay. Also there are now codes.

 

[jjvw]

Codes? Maybe those are related.

 

[99black]

Yes I would say they are. But where would suggest one might start checking first.

 

[jjvw]

Yes I would say they are. But where would suggest one might start checking first.

Start by reading the codes either through the OBDII or through the ignition key method.

 

[99black]

There are no codes show either way.

 

[jjvw]

There are no codes show either way.

But you said there are codes now.

.... Also there are now codes.

 

[99black]

Miss spelling

 

[99black]

That was supposed to be also there are no codes. Sorry about that!