Just finished swapping in my new motor and it idles -at 2000 rmp when cold but around 2600 after it gets warm. What's going on here?

 

Sorry to tell you this...
but with no additional information....
how the f**** should someone be able to help you??

Is something done to the engine ?? Ported, yes?? no??
Do you use the stock ECU?? Yes? No?
Do you use a PowerFC? Yes? No?

etc.


there are a few possibilities.

maybe you should adjust the idle skrews on the throttle plate and / or the idle bleeder skrew.

If you have a PowerFC you should check the settings + you should perform a new Idle-learning routine!



regards
Marc

 

Street port 1600 550 injectors t04r PFC
the only thing that has been changed in the keg. the tps, iac, and throttle body screws haven't been touched

 

what are your idle set in the pfc?

 

things to check -

vacuum leak
vacuum hose disconnected
too tight a throttle cable
check the voltages on both ranges of the TPS
idle adjustment screw (with engine warmed up)
maybe take the elbow off and see how the throttle plates are positioned
PFC idle settings

good luck

 

^^Right there is what you need to do. One thing to add, IF you have cruise control make sure the cruise throttle cable is not bound or too tight as well.

The idle will most definitely need relearned on the PFC, and I would also think that the idle adjustment screw will also need to be adjusted. Depending on how large the port is the car may need to idle around 1000.

Good luck