HELP Running lean with 50lbs injectors - Page 3

04 Mach1 · 12-08-2005, 07:36 PM

Still lost.. I sent the meter back flow test shows that its fine. Think I might have a wiring problem. Correct me if I'm wrong I should be able to hook the 02 up and disconnect the maf and run the car with the o2 with the 50s and it should run stupid rich? Well it will still lean it out. Any ideals.

joker · 12-08-2005, 07:50 PM

Quote:

Originally Posted by 04 Mach1

Still lost.. I sent the meter back flow test shows that its fine. Think I might have a wiring problem. Correct me if I'm wrong I should be able to hook the 02 up and disconnect the maf and run the car with the o2 with the 50s and it should run stupid rich? Well it will still lean it out. Any ideals.

What is your fuel pressure at, and what kind of pump are you running?

04 Mach1 · 12-08-2005, 08:03 PM

43psi and the pump is that new holley forced induction intank. Fuel pressure increases with boost 1:1

04 Mach1 · 12-08-2005, 08:07 PM

Even at idle running of the o2 its lean.

QWKSNKE · 12-09-2005, 03:05 AM

Quote:

Originally Posted by 04 Mach1

Correct me if I'm wrong I should be able to hook the 02 up and disconnect the maf and run the car with the o2 with the 50s and it should run stupid rich? Well it will still lean it out. Any ideals.

my car pretty much will not run worth a crap with MAF unplugged and will not run at idle.

Quote:

Even at idle running of the o2 its lean.

Due to fuel tables in the EEC your car will run lean at idle.
I may have missed it somewhere but do you have a w/b 02 setup? Just trying to figure out how you know that you are lean (aside from the dyno trip you mentioned earlier)

Is your Pro-M setup in a draw through or blow through and is calibrated for that?

QWKSNKE · 12-09-2005, 03:08 AM

Also,

have you verified that your base timing is set where it needs to be. I noticed you mentioning the headers glowing red at idle, can't incorrect timing cause this as well?

Dale McPeters · 12-09-2005, 10:30 AM

Quote:

Originally Posted by QWKSNKE

Also,
I noticed you mentioning the headers glowing red at idle, can't incorrect timing cause this as well?

Yep.........

04 Mach1 · 12-09-2005, 06:03 PM

Base timing with pill pulled is 6 degrees adv. My cam is 4 degrees adv. Can 4 degrees cause lean condition, but the car idles good. my meter should be back monday guess I need to wait and see what it does. Maybe the recal was bad and they fixed and didn't tell me. I can only hope.

QWKSNKE · 12-09-2005, 06:20 PM

I thought you already had your meter back. How did you come to the lean conclusion last night if you don't have a meter?

04 Mach1 · 12-11-2005, 10:39 AM

I thought i could run it off of the o2 since the stock computer is 19lbs injector and the o2 will only pull out about 20% of fuel out i thought it should still run rich but i guess i was wrong still lean. Then i put a stock maf on and stuck a 1/4 socket in the opening restricting the amount of air the maf would read and got it running somewhat ok.

12-08-2005, 07:36 PM	#21
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	Re: HELP Running lean with 50lbs injectors Still lost.. I sent the meter back flow test shows that its fine. Think I might have a wiring problem. Correct me if I'm wrong I should be able to hook the 02 up and disconnect the maf and run the car with the o2 with the 50s and it should run stupid rich? Well it will still lean it out. Any ideals.

12-08-2005, 08:03 PM	#23
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	Re: HELP Running lean with 50lbs injectors 43psi and the pump is that new holley forced induction intank. Fuel pressure increases with boost 1:1

12-08-2005, 08:07 PM	#24
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	Re: HELP Running lean with 50lbs injectors Even at idle running of the o2 its lean.

12-09-2005, 03:08 AM	#26
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Re: HELP Running lean with 50lbs injectors Also, have you verified that your base timing is set where it needs to be. I noticed you mentioning the headers glowing red at idle, can't incorrect timing cause this as well? __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy

12-09-2005, 06:03 PM	#28
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	Re: HELP Running lean with 50lbs injectors Base timing with pill pulled is 6 degrees adv. My cam is 4 degrees adv. Can 4 degrees cause lean condition, but the car idles good. my meter should be back monday guess I need to wait and see what it does. Maybe the recal was bad and they fixed and didn't tell me. I can only hope.

12-09-2005, 06:20 PM	#29
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Re: HELP Running lean with 50lbs injectors I thought you already had your meter back. How did you come to the lean conclusion last night if you don't have a meter? __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy

12-11-2005, 10:39 AM	#30
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	Re: HELP Running lean with 50lbs injectors I thought i could run it off of the o2 since the stock computer is 19lbs injector and the o2 will only pull out about 20% of fuel out i thought it should still run rich but i guess i was wrong still lean. Then i put a stock maf on and stuck a 1/4 socket in the opening restricting the amount of air the maf would read and got it running somewhat ok.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode