Have followed printed engine manual for instrucitons on adjusting air flow sensor plate [measuring at 1, adjusting with roller pin at 2 under the fuel fitting]. Engine seems to be always rich. Adjusting idle with air mixture screw will bring idle down but rich, raw smelling exhuast. And if bring down to 800 rpm then it will not start and flood all cylinders necessitating removal of plugs to dry off. New O2 sensor, new fuel dist, new warm up reg, new idle control valve, new idle control module, new fuel pump relay, new fueld filter, over voltage protector checks out. Car has no cat cons or air pump... rebuilt cylinders and new timing chain and rails.... just cannot get it to run right at idle and start like it should.

Question is I believe I have adjusted air flow sensor plate correctly according to manual but am wondering if it should be a little lower at idle [to allow more air] than what manual says?

My other option is maybe cold start valve continues to leak after starting the car? Could it be the fuel pressure regulators?

Thank you in advance. Great forum.

Attached Thumbnails

 

__________________
dloveless

1984 500 SEL [131K]-
1991 GMC Sierra 4X4 XC [162K]- War Pony.
2004 Jeep Liberty Limited [8k]- wife's sled- Belle.