lean

  1. M

    Progress Thread 2014 Automatic idle/accelaration Issues

    Long explanation but really need some advice. My Car started acting up when I sit in idle the car is running lean stays at 15.6 but smells like gas as if it were rich. Car also randomly jumps to 20 in air fuel ratio and the rpms drop and the car sounds like its going to stall out. Does this 4 or...
  2. D

    2006 Ford Mustang Running Lean and Rich Problem (Need Advice)

    Hello, I am new to posting on forums and this is the first time I ever made an account to post a Thread, so sorry if I am doing something wrong. I tried searching for this problem but came up with no real answer to my situation. Around July I purchased a 2006 Ford Mustang GT...
  3. T

    Stuttering At Wot At 4k Rpms. S/c Motor

    Hi everyone, currently t/s an issue with my 2v. Car specs(short): Built 2v 4.6 Vortech S/C downsized pulley pushing 18 psi Fuel: 2 Ford GT pumps lined to two FPDM supplied by BAP with the wire upgrade. History: Has driven fine for about a year since the finish of the build and tune. Last...
  4. J

    5.0 Ho Swapped Comet Lean Backfire Issue

    Hello all. My dad recently picked up a 1964 Mercury Comet, with 5.0 HO and AOD out of an 89-91 Mustang GT swapped in place of the original 289 and C4. We are having some issues with lean backfiring on slight accelerator application on occasion which I am trying to work through. When the car...
  5. S

    Throwing Obd Codes?

    Okay I did some digging but didnt find anything of use. I recently got a 99 gt with 91k miles on it. All original except for a few things, in excellent condition. Im confused on a few things. I reset some codes the other day and theyre back. Theyre P0171 and P0174. They state that both banks are...
  6. Shadow06gt

    Engine Cai Now A Bunch Of Mess

    Hey all, I just installed a no tune required intake and i have a airraid spacer already on. I had to buy a longer tube for the pcv on the right valve cover to the intake that the stock one wasnt long enough even without the spacer. I installed a new mai and had unplugged the negative and allowed...
  7. 6

    Help! High Afr Warm Start

    Hey everyone, I've been a long time reader here, and have never run into a problem I couldn't get an answer to by just using the search bar.....until now. First, some pertinent background info about my car: 1965 Mustang Coupe '89 302 HO / T5 E303, GT40's Summit Intake manifold and 600 cfm...
  8. W

    Suspension 1990 Gt Sits Lower On Back Driver Side

    Hello i have a 1990 mustang gt and it sits lower on the rear driver side than anywhere else. Ive read a lot of stuff about the "foxbody lean" But mine only sits lower on the rear driver side. The front is just fine. If i remember correctly it didn't do it when i bought it it only did it after i...