Good evening guys,im tearing my hair out trying to work out why the engine idle when warm is 1200 rpm,shouldnt it be around 900 ish?And how would i go about turning it down?im running black top zetec,jenvey throttle bodies,mbe ecu.
Ive got a laptop and easimap software available.
I think ive read something a while ago about adjusting the timing,Not sure how i would do this.

Any help please!

Chris

Who you calling idle

Could be a few things tbh

Is the TPS set correctly and does its voltage correspond with that in the map ?

Has it always been like this or is this something that has just started to happen ?

do the butterflies close properly on the throttle bodies?

How do i set the tps up properly?Its always been like that.
The butterflys are shut fully.

Cheers Chris

Balance throttle bodies, air leaks ,no slack in throttle linkage,twisted throttle shafts, butterflies not centralised in throttle bodies, over advanced ignition timing can all cause a fast idle

You are probably leaking air past the butterflies. You will need to closely inspect them against a light source to see if there are any leaks. If you cannot achieve a perfect seal then you can try retarding the ignition in the map - I have reduced my idle this way.