lean

  1. Evan601

    16 Mustang GT P1X lean tip in problem

    Hello all, Im getting back into the mustang game with a newer car. I bought it used with a gt350 intake manifold, gt350 TB, 47# injectors, and magnaflow cat backs running a Lund N Gauge with a 91 tune, 91 and e85 tune, and straight e85 tune. Car ran fine before the install and I never felt or...
  2. T

    WTB: JS Safeguard Vampire, Lean Protection Module

    Hello everyone, I want to buy a MD Racing Lean Protection Module. Thank you *JS Vampire purchased
  3. papajoewill

    WTB Lean Protection Module

    I see that MD is no longer making the Lean Protection Module and I'd love to have one for my build. Please let me know if any are around, thanks!
  4. K

    HELP!! Lean and inconsistent.

    Let me start by saying hello!! I have been reading on these forums as well as others for a while now. I have been given a lot of really good ideas thru this forum and members without having ever communicated directly. I recently just joined, and I am completely open to any and all criticism or...
  5. Hunter_M_

    LTs, X-Pipe, and Stingers = Really Lean?

    Hey, guys, got a quick question. So I have a low mileage Cobra that I got last May. Tbh, I've murdered the low miles and tripled it to 25k. It was all stock when I got it. Now it has Kooks 1 3/4" LTs, Kooks o/r x, and Borla Stingers on it. I just installed the wideband the other day. Since...
  6. P

    Car loses all power above 50% throttle except WOT. No codes.

    Got a weird problem. V3 Supercharged 11 GT A6 on 93. Easy throttle car runs fine, give it about half throttle and its like the car just loses all power. Bank 2 afr reads 28.1 ratio while bank 1 reads 13-14.x like normal then drops to 8-11.xx . Anyone else had this issue or know what might be...
  7. T

    02 goes lean at 2500rpm

    Hey all, my tuner and I are stumped. Here is the the rundown, 99 cobra with a terminator swap. I have the 99 PCM. 2.93 upper, 4lb lower, 60lbs injectors, K&N FIPK. The issue that we have run into is that when we are on the dyno the bank 2(driver side) o2 sensor starts going super lean at 2300rpm...
  8. J

    98 cobra running lean with no codes

    So i went to a dyno day found that my air fuel ratio was at 14.7 average. well found out that the previous owner installed an aftermarket maf housing and my tune wasn't set up for it. well ordered the correct tune. and got a wide band air fuel gauge. well at idle it maxes out to lean 22.4...
  9. I

    Engine running lean! HELP

    So as you can tell from the title, my cobra is running lean. It threw a code last week, I think it was p0171 (system lean bank 1 sensor 1)... I cleaed the code, and within 20 miles it came back and both banks were showing up lean... Cleared the code again and when it came back up, it was only...
  10. G

    please help with lean condition

    :mj:I just bought this 03 cobra and inherited what seemed at first to be a tune issue. Long story but here goes. The car had VMP blower w/ 3.3 pulley, "FuelAmp" voltage booster set at constant 16.5v. Stock pumps,maf, and injectors. Car had a street tune done by owner. Car has widband that read...
  11. I

    New CAI, now running rich....

    Not sure if im posting this in the right category, but anyway.. here we go... so i bought a bbk CAI for my 2003 cobra. The car is 100% stock besides for an SLP catback. As soon as i put the CAI on, i noticed the exhaust snelling a little rich, but i thought it was just me... the next day, i got...
  12. nstampede002

    Fuel cut in 4th gear only?

    Hey guys, First off, I am fairly new to a lot of this so please - go easy on me. I did do some searching on the forum first but could not find a thread that matched the issues I'm having. If I did miss it, please point me in the correct direction - I will take my lashings. I purchased an...
  13. war21789

    turbo 5.0 runs lean at 3500 rpm

    ok, got a 95 5.0. stock long block including cam, Trick Flow r- series(not the box) intake, Boost Brothers turbo kit running 6 psi, 90mm lightning maf, 42# injectors on stock fuel rail, adjustable regulator, walbro forced induction 255lph fuel pump, msd coil, slp lm1 catback. might of forgot...
  14. I

    Lean, and ticking

    I just had my stock cobra (14k miles) fitted with a kenne bell 2.2L and tune from C&M performance in wisconsin, Including all supporting mods: 60# injectors, mass air, new boost-a-pump. Problem is, engine is ticking on the way home from the shop. I have an independant shop do a leakdown and they...
  15. joaqslam

    Gen 2 lightning recurring error code

    Hi guys. hope you can help me. my lightning has the error code P0171 system too lean bank 1.it kkeps coming back not when the car is running but it shows once you start up the car. History of my car is that it is a flooded unit and took ford 7 months to fix. i changed everything needed and...

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