1.8 Swap Problems.
 

So the car runs after a 1.6 - 1.8 Swap but its a little temperamental when cold and has some hot running problems.

1. It wont stay idling at cold.
2. @ 2100 RPM with light throttle it cuts out, But rev's fine past that.


Any Suggestions?

Thanks

I would suggest perhaps a little more information.

Stock ecu? MS?

Stock ECU, Stock Headers, Custom Intake Pipe. but its the same length and size. Also running the AFM

Where are all your grounds?

Working on it over the weekend I located a vacuum leak so the cold and hot running problem is gone but the 2100 rpm cut out is still persistent. It's like it's a launch control I.e looses spark. (I have not checked this)

All the grounds are in the stock locations to my knowledge.