I recently purchased a used ‘12 GT from auction. I’ve noticed the following mods: CAI, Boss Intake, headers, x-pipe (no cats), and muffler delete system. Usually after starting, I get a constant surging idle, some shaking, and then it stalls out after after coming back down from throttle. Also, every once in while, I’ll get a crank no start as fuel pump won’t prime.

It throws the following codes: P2196, P2198, P0420, P0430. I am assuming that the car was tuned. Perhaps if it were flashed back to stock somewhere along the line, would these mods cause it to run like this? I don’t see a port to test fuel pressure. I threw a new MAF sensor and fuel pump at it but no fix.

This was supposed to be my dream car but I’ve yet to actually drive it. It does look nice sitting in my driveway I suppose =P

 

I would Contact These Folks about a Programmer & Custom Tune. Hopefully You can see all the Mods & Cams Are Not Changed to get an Accurate Tune.

Perhaps They can Provide Some True Tuner Experience & Put you on the Right Path!

https://www.americanmuscle.com/1014-mustang-tuners.html

KC

 

yes those mods would need tune modifications, and if it is flashed back to stock then it would not run right ... but I have no clue if that is the problem or the whole problem

unfortunately since you bought it at auction, there probably is no way to reach the prior owner to find out about the tune and get the tuner device

I think I would look for a local Mustang performance shop / tuner and see if they can figure it out

PS -- welcome to the forum!

 

No offense Kevin, but I wouldn't let American Muscle/Bama tune my lawn mower, let alone my Mustang... I know this thru personal experience, as I had nothing but trouble with their so called custom email tunes.. Now on the other hand, when Doug still owned Bamachips custom tuning, his tunes were always spot on along with his excellent customer service...

I'll second this advice 100%

 

My Experience With Bama was With Doug Personally as he Did the First 07 Gt-500 Tune and I got it. Sorry I am Out of Date on what has Transpired In My Absence. Sorry to Hear of Service Issues with American Muscle. Food for Thought.

Going to the Site and The Name Bama all over everything I would Assume Doug was Overseeing Everything. So I was Confident service would be good! Perhaps Not the Case. Oh Well That's What I Get for Assuming!

Meanwhile if he Does not have a Local Shop to go to Who would you {Or Any Other Forum Viewers} Recommend as an online Tuning Source? And I would think Online Tuning would be a Difficult Job Indeed!

Thanks,

KC

 

There's a person who goes by the name of Lito aka Manuel Pazo.. Although he's located in Venezuela, he's well established and well known as the 3v guru.. There's also VMP performance and JDM engineering as well... Links are provided below.

https://themustangsource.com/forums/...ckjack-547039/
https://themustangsource.com/forums/...-07-gt-548418/

 

When Doug first sold his tuning business over to American Muscle, he did oversee the transition as a consultant, but once the transition process was complete, his involvement as a consultant came to an end..
He later went on to become the lead calibration tuner for C&L Performance until their demise and eventually was also acquired by American Muscle... At any rate, ever since American Muscle acquired Bama Custom Tuning, the quality of their so called custom e-mail tunes don't even come close to meeting the standards of which Doug provided as the owner and calibration tuner of Bamachips Custom Tuning...

This of course is just my personal opinion lol. Anyhow, following my negative experiences with American Muscle/Bama, I made the switch over to Brenspeed for a few years and then made the switch to JDM engineering and have remained a customer ever since... That being said, I also highly recommend JDM as they also have a very high reputation as Ford custom tuning specialists, and have over 20 years experience in the industry to back it up.. VMP performance is also highly recommended as well... Links are provided below, if interested...

https://www.teamjdm.com

https://www.vmpperformance.com/perfo.../custom-tuning

 

Good Info as Always my Friend!

Keep up the Good Work!

A Good Forum is All about Gathering Info so we All Learn a bit Today and Later those Visiting the Posts Down The Road will Benefit as Well! I wish we Had More Members Joining in at your Level of Involvement. I 'm Just the Old Uncle who has Been Away from home and is on Extended Visit. I see the Hard Core Base still out there after all these Years answering in Detail Many Questions for The Guests! We All need to encourage those Veterans!

Thank You For Your Service! TMS Vets!

KC

 

From one TMS vet to another, I could not agree more

 

This is good information to read! When I was more active back around 2010-2012, Bama had a great reputation on this forum. I then went dark for a good few years due to life, showed back up in the Mustang world this year, and all I'm reading is "Bama is bad." I put up a question on a facebook group about them, and couldn't get any real information out of the responses. Your response helps tremendously, in explaining why Bama went from "great" to "avoid and get a Lito or Ortiz" tune.

 

Thanks for the kind words, much appreciated

 

I have worked with Lito and super happy with his work. But I'm not sure he can handle this kind of diagnostic and tuning situation, where we don't really know what the problem(s) is(are). He might be able to glean some clues from a datalog, but you can't datalog if the car won't run.

To the OP Unt4m3d -- any progress or updates?

 

Another Story in The Unanswered Conclusion Section!

Inquiring Minds Want to Know!

Mgb,

KC

 

Sorry about that. I ended up replacing the PCM and all is good now. Turns out rain water had seeped thru the aftermarket hood vents and got onto the computer - causing all sorts of air/fuel issues and strange codes. Car is running strong now. I recently purchased an SCT Tuner and hope to reach out to Lito shortly to awaken it a bit more.

 

Thank You So Much For The Update!

You Might Want to Consider a Water Shield For The Hood To Prevent a Repeat Issue! I Would Also Advise To Check Any Other Electrical Components in General Area To Prevent Gremlins From Occuring Later. I Really Like The WD-40 Contact Cleaner For Electrical Connections! Link On Bottom!

https://www.google.com/search?q=hood...hrome&ie=UTF-8

Mgb,


KC


I Forgot How Long Ago This Was Originally Posted! Looked at the Date and Thought it was a Month Ago Not a Year! Got Carried Away! But Good Info For Those With Similar Issues!

Oh Well In Too Good a Mood Today to Pay Attention To Date!

Mgb,

KC

 

Thanks for following up and for finding out the PCM required replacement due to water seeping in from the aftermarket hood vents... Meanwhile, glad your car is back up and running strong...