Good 4.0 performance ECU?

[Talyn]

Check for vacuum leaks and unplugged vacuum lines, clean the IAC, check TPS.

 

[clark40]

Your new ECU will need some time for adaptive learning of your engine's sensor outputs, so I'm sure the idle will settle down once you've accumulated a few miles.

Thank you I really hope so

 

[Talyn]

The idle should settle down with in minutes, not miles

 

[clark40]

The idle should settle down with in minutes, not miles

what do you think change another sensor. thanks

 

[Talyn]

Sure, throw more sensors at it. Maybe you will get lucky and guess the correct one.

NO. Start testing. Check for vacuum leaks and unplugged vacuum lines, clean the IAC, check TPS.

 

[GSequoia]

Check for vacuum leaks

Tip: Take a can of starter fluid and spray down any area that might be leaking vacuum while the engine is idling. If your idle spikes when you spray an area you've found your leak.

 

[nectarXJ]

My chris-tuned ECU will be arriving this wednesday. Can't wait to install it this weekend.

So did you ever get your christuned ECU installed? Like it? Major improvement? I'm dyin' to hear. I'm thinking about having him do my stroker ECU too.

 

[nicpaige]

Me X2

 

[nicpaige]

Any updates on this saga?