New Guy.

BlackLX50

New Member
Jun 29, 2009
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I couldn't find the New Member Section. Hey everyone my name is Alex,I live in Miramar,Fl and I have a 1990 Ford Mustang LX 5.0 with a few mods,Explorer Upper and 93 Cobra Lower,Ford Racing lifters,B303 cam,65mm TB and spacer,70mm SN 95 Mass Air,BBK CAI,Steeda Underdrive Pulleys,Ford racing Timing Chain,Steeda F/R Swaybars,Steeda Strut Tower Brace,Ford Racing C Springs,Polyurethane Isolators,Motive 3.73's.
NewRolling.webp

Afterdrop9-1.webp

Bonestock.webp

^This was stock
Afterdrop6.webp

Unfortunately the car is not running correctly since i put the cam and Intake on.The car has a break up at around 4300-4500rpm,and yesterday i was driving normally not beating on it,and I looked at my Narrowband Air Fuel Gauges and they were pegged at lean,and when i gave it some more gas i saw the fuel pressure go up to about from what I could see was about 45psi-48psi,still pegged lean.What could this be?
 
Maybe a vacuum leak, do you have any codes?

Yeah I do.
31,67,29,66.I keep getting these codes repeatedly,and one of my friends is telling me thinks its an electrical problem,and John Pappas from Mustang Specialties thinks so also.Unfortunately the mechanic I used to take the car to,got a side post battery,and the bolt that goes through the negative is stripped,he says that may be one of the issues,as he is thinking since the bolt is stripped the car is not getting enough power to all the sensors.
 
I don't think a stripped bolt will cause codes. There is a guy on here named Jrich, he will be able to give a detailed explanation on how to diagnose and fix each code you listed, just gotta wait for him to come on :nice: