MustangWorks.com : Ford Forums - View Single Post - 30lb/hr injectors in.....too rich at idle, help!

84LX89GT · 04-20-2003, 10:44 PM

Ok, i installed some 30lb/hr injectors, Ford Racing 70mm MAF (for injectors) and a walbro 255lph pump the other day (in preperation for running nitrous). Anyway, now the thing runs too rich at idle (floods engine), at all other speeds it runs fine. I reset the fuel pressure to 35psi key on from 42 psi and it seems to run a bit better at times, but it still doesn't like to idle.
My question is, what should i tinker with to get this thing to idle? Should i reset the throttle blade more open and lower TP voltage (but make sure it shows WOT at full throttle)? Would an idle adjuster work? I know 30 lb injectors and 255lph fuel pump is way overkill for regular driving, but i just want to be able to drive from the track and back without it dying at stoplights.
All ideas are greatly appreciated.

04-20-2003, 10:44 PM	#1
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	30lb/hr injectors in.....too rich at idle, help! Ok, i installed some 30lb/hr injectors, Ford Racing 70mm MAF (for injectors) and a walbro 255lph pump the other day (in preperation for running nitrous). Anyway, now the thing runs too rich at idle (floods engine), at all other speeds it runs fine. I reset the fuel pressure to 35psi key on from 42 psi and it seems to run a bit better at times, but it still doesn't like to idle. My question is, what should i tinker with to get this thing to idle? Should i reset the throttle blade more open and lower TP voltage (but make sure it shows WOT at full throttle)? Would an idle adjuster work? I know 30 lb injectors and 255lph fuel pump is way overkill for regular driving, but i just want to be able to drive from the track and back without it dying at stoplights. All ideas are greatly appreciated. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock) Last edited by 84LX89GT; 04-20-2003 at 11:37 PM..