Might be running to RICH

99cobra! · May 28th, 2009, 08:35 PM

Need some opinions, car has been back firing some and stalling out on it own at red lights since the cam install, could this be caused from it running to Rich? Should I tune it to run leaner? What is your opinion?

Fluffy The Rhino · May 28th, 2009, 09:08 PM

Did you degree your cams?

Did you take out your spark plugs when you installed the cams?

Misfire can sometimes be related to backed out spark plugs.

You really should get a tune regardless.

99cobra! · May 28th, 2009, 11:48 PM

It has a tune, I mean it isn't bad backfires, does it everyonce in a while.

Mod mach · May 29th, 2009, 01:03 AM

same here

Trick Tuners · May 29th, 2009, 12:21 PM

Originally Posted by FluffyTheRhino

Did you degree your cams?

I bet the cams are not degree'd properly. How much vacuum do you see? I tuned a bunch of cammed cars and before the tune they may run like ass, but they were never backfiring. what are the fuel trims on each bank?

Mustang RacR94 · May 29th, 2009, 09:26 PM

get fuel trims, 02 voltages and such to see if your running rich

May 28th, 2009, 08:35 PM	#1
99cobra! Regular 1999 Mustang Cobra Not Yet Join Date: Oct 2008 Location: North Carolina Posts: 256 iTrader: 0 reviews	Might be running to RICH Need some opinions, car has been back firing some and stalling out on it own at red lights since the cam install, could this be caused from it running to Rich? Should I tune it to run leaner? What is your opinion? __________________ MM COBRA CLUB #19 "Real cars aren't powered by their front wheels, they lift them"

May 28th, 2009, 09:08 PM	#2
Fluffy The Rhino Bearer of Bad News I has mustang and legacy. Slower than my Ruger. Join Date: Sep 2007 Location: The Fuckening Posts: 2,377 iTrader: 0 reviews	Did you degree your cams? Did you take out your spark plugs when you installed the cams? Misfire can sometimes be related to backed out spark plugs. You really should get a tune regardless. __________________ ~MOD NUTSWINGER~ My Tongue Soothes Razorburn STOPSAYINGFAIL.COM EVERY FART IS A GAMBLE Just Think Of Me As A White Blood Cell.

May 28th, 2009, 11:48 PM	#3
99cobra! Regular 1999 Mustang Cobra Not Yet Join Date: Oct 2008 Location: North Carolina Posts: 256 iTrader: 0 reviews	It has a tune, I mean it isn't bad backfires, does it everyonce in a while. __________________ MM COBRA CLUB #19 "Real cars aren't powered by their front wheels, they lift them"

May 29th, 2009, 01:03 AM	#4
Mod mach Regular Join Date: Aug 2008 Posts: 126 iTrader: 0 reviews	same here __________________ 4Cams,4Valves,4.10's Hell yeah

May 29th, 2009, 09:26 PM	#6
Mustang RacR94 MM Fanatic 99 cobra N/A Join Date: Dec 2006 Location: Fayetteville NC Posts: 3,169 iTrader: 0 reviews	get fuel trims, 02 voltages and such to see if your running rich __________________ 99 Cobra 03 Cobra motor AFCO H/E Pulley JLT CAI BBK L/T off road H/steeda catback SCT MAF Tune 03 cobra pumps HVGC

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