Super Rich at idle .... ???

[craigwhite89gt]

Well i figured id ask even tho it does not bother me cuz the car runs great. But Why at idle would my car run super rich. I dont have Cats on the car and went to emissions and they said i passed everything but the idle test 7 times the legal limit.

Im running 24# inj. 255 pump. MSD 6al. 306 w/ all boltons and heads. Autolite plugs. FMS wires and stock distributor

 

[Flavadave4]

whats you fuel pressure at idle with the vac off?

 

[craigwhite89gt]

38

 

[Flavadave4]

seems normal.....whats the base timing set at?

 

[Roland69]

was the engine cold when they did the test

 

[craigwhite89gt]

18deg... Use to be on 16 even on 16 it did it.. put it on 18 and it really woke the car up

car was warm

 

[Flavadave4]

Timing made a hug difference in my car too.......maybe a few more degrees might get rid of some of the richness down low. If it runs good let it be

 

[craigwhite89gt]

runs real good. i think im jus gonna get an apexi FMU and air / fuel ratio since i will be i need for that after i get the turbo anyway so i can tune it.

 

[Daggar]

Pull codes!