trouble, unable to drive.....

[Jenns01TA]

so what do i do about it

I don't know brown. That is why I am trying to get Either Jay Tucker or Doug from Bama to come over and provide some insight.

Did you try removing the bus fuses and relay as terril made mention earlier? I am not a technician. I fall more on the engineering side. And as most of us know, that is pretty useless most the time.

If you have the stock air box back on, try pulling bus fuse 40 and associated relay like terril mentioned, reupload the stock tune. Reintall the fuses and turn her over. See what happens. Black smoke blow from the exhaust will indicate that it is still running rich and that you either have no MIL eliminator installed, they are not installed properly on the rear side of the O2 circuit or that the heated 02s are not coming to temperature quick enough.

Can you get the DC codes from the OBD with the Xcal to give us a better idea of where the problem is?

I wish I was more help brown. If all else fails, button her up, get her to a qualified ASE certified mechanic you trust, tow her if you have to. DO NOT TAKE HER TO THE DEALERSHIP. Ask the shop to give you a hand and explain what you have done and what the issue is. You will end out paying for the code pull and diagnostic. Perhaps if you have a shop that you have a good relationship with, they will be willing to slide you a favor for some referrals. My shop does this all the time for me.

 

[brown spit8]

p0155 and p0135

 

[red05bullitgt]

did you remove the 15 amp fuel pump and the large 40 amp fuse right next to it? if you don't the car runs like s__t

i know i made the mistake of changing tunes without removing fuses and car ran like s---

No offense, but that's absolute BS you do not need to pull fuses nor is it required..The only reason why the SCT user guide recommends pulling those fuses is if you have a low or weak battery, otherwise it is not necessary..I've flashed back and forth from stock over 8 times and have never had any problems..and the reason why your car runs like sh__ after flashing back to stock?? is because your Long tube headers will not run on a stock tune..Long Tubes require a custom tune in order function properly plus you have an off road H pipe on top of it, which is probably contributing to your 02 sensor problems as well..You need to contact your tuner and have him send you a different tune file..

 

[Saleen-wana-be]

about the o2s. I have mine turned off using the diablo tuner because my off road x pipe with no cats set the cel on. i tuned them off, no problems at all. I havnt installed the intake yet though...now iam kinda scared. I think i'll just wait till i can get it dyno tuned.

 

[JLTucker]

Brown, Contact Doug today and he will help you out. The intake is just flowing air, the tune is what tells the computer what to do.
Be sure to contact the company of any product when there is a problem. They want to help and will help you get things right much faster then the internet can.

If you contact the company and are still not satisfied then maybe the internet can help, but knowing that Doug is one of the best I can say for sure a call to him will get you right very fast.

Thanks
Jay

 

[Jenns01TA]

Thank you for responding Jay. Your input and assistance is appreciated, Sir.

Gentlemen - Please keep responses general and between each other. If Mr. Tucker responds in threads, I would appreciate any further communication you may have with him or his company/products to be made via phone or private email. You are welcome to engauge in general topic dicussions, but customer service items need to be conducted in professional manner in private.

Thanks Gentlemen. Brown - You now have your marching orders on getting the Stang running. Be patient and all will work out in a few days.

 

[manystangs]

Lighten up Francis!

 

[Jenns01TA]

Lighten up Francis!

Copy that!

 

[Infinity]

...and if any of you HOMOS touches my stuff- I'll kill you.

Funny ass movie.

 

[JLTucker]

It stinks the title to this thread makes JLT look bad to the readers, when there's actually nothing going wrong with the JLT.
I hope it gets cleared up for you.

Jay

 

[bigcat]

It stinks the title to this thread makes JLT look bad to the readers, when there's actually nothing going wrong with the JLT.
I hope it gets cleared up for you.

Jay

let me see about this......

 

[AznStanger3v]

Good Morning Young Man,

I have spent a few years brushing up on my Modulated Electronic Engine Control theory specific to the Mustang. We have moved into a "brave new world" that is far from old school slop shop to advanced fundamental modulated electronic engine control programming.

Instead of trying to answer your questions as presented to me, I am goingto break a cardinal rule and hyperlink. A necessary evil considering the topic of discussion.

http://www.aa1car.com/library/o2sensor.htm

This so far is the BEST article I have found and read on 02 Sensor Diagnostics and the OBD-II/PCM, including heated 02s. In layman’s terms it explains a great deal.

I still have a huge amount to learn. I respectfully ask that you read it first and then get back to me. This is a great topic and we all need to spend a little more time educating ourselves. ME INCLUDED. I do not profess to know much. I have traded in the toolbox for a computer and research materials, I have gone from weekend shop tech to arm chair mechanic. Theory and practical application are totally different. Please help me educate myself and assist others.

~J~

I understand you are trying to bring the answer out as easy as possible, but showing me a website full of the history and what not doesnt help. Ill tell you a little about myself as to make it easier for you to answer me:

-20 year old Electronics Technician for the US Navy
-9 ASEs
-Associates Degree in Automotive Technology

I used to work on Fords for a little while, and was an ASE or 2 away from Senior Master. I understand im not an engineer, nor have i really looked over anything from the Spanish Oak era. but feel free to give me YOUR answer, for i am very capable of understanding what you say, no lamans terms necessary. I appreciate the link, it was very informative, but nothing that i havent seen. I sure hope others on this board take a look though, it might help someone. Im not being a dick, so please dont take it as that. The username was from 3 years ago and itll turn some people off.

 

[manystangs]

It stinks the title to this thread makes JLT look bad to the readers, when there's actually nothing going wrong with the JLT.
I hope it gets cleared up for you.

Jay

I have one of Jays' CAI kits with a Bamachips tune and it works like a dream! Thanks Jay

 

[timeless2]

The username was from 3 years ago and itll turn some people off.

Search the member listing to see if a new screen name you desire is taken. If you find a unique one, PM me to get a change processed.

 

[Mike97gt]

I know I am jumping into this thread late but I must have missed it somehow. I did not read all of the posts since I am limited on time so forgive me if I advise you to do things already covered by others.

Both of those codes are for circuit faults of the upstream 02 sensors. Since you have headers the first thing I need to know is if you had a check engine light on before you added the tune and the cold air.

IF not then first you need to check the EEC fuses.. If all fuses are ok then check the harnesses up to the pcm..

BUT if this only happend after you tried to install the tune and you had no troubles before then you may need to do a blank path pcm reprogram this is not the normal reprogramm procedure you will need access to a IDS or WDS scan tool and I then I can tell you how to do it. If not then try to see if there is a ford tech on here that lives near you and I can tell him how to do it if he does not know. We have seen issues with some spanish oak pcm's after they have been reflashed even with the normal PCM recalibration witht he IDS.. I have had to blank path a couple of these pcm's so far.

basicly what the blank path does is totally erase the entire pcm and turns it into a blank then the tech can go in and install a fresh tune. this is ford pcm equivlent to reformating your hard drive and reinstalling windows.

OHH one more thing. I highly recomend having the car hooked to a battery charger when doing reprograming or atleast make sure you have a fully charged battery.. We have seen MANY issues with cars that have been reprogramed with low battery voltage. This is probally not your problem but it's a good thing to remember.

 

[Marine One]

I know I am jumping into this thread late but I must have missed it somehow. I did not read all of the posts since I am limited on time so forgive me if I advise you to do things already covered by others.

Both of those codes are for circuit faults of the upstream 02 sensors. Since you have headers the first thing I need to know is if you had a check engine light on before you added the tune and the cold air.

IF not then first you need to check the EEC fuses.. If all fuses are ok then check the harnesses up to the pcm..

BUT if this only happend after you tried to install the tune and you had no troubles before then you may need to do a blank path pcm reprogram this is not the normal reprogramm procedure you will need access to a IDS or WDS scan tool and I then I can tell you how to do it. If not then try to see if there is a ford tech on here that lives near you and I can tell him how to do it if he does not know. We have seen issues with some spanish oak pcm's after they have been reflashed even with the normal PCM recalibration witht he IDS.. I have had to blank path a couple of these pcm's so far.

basicly what the blank path does is totally erase the entire pcm and turns it into a blank then the tech can go in and install a fresh tune. this is ford pcm equivlent to reformating your hard drive and reinstalling windows.

OHH one more thing. I highly recomend having the car hooked to a battery charger when doing reprograming or atleast make sure you have a fully charged battery.. We have seen MANY issues with cars that have been reprogramed with low battery voltage. This is probally not your problem but it's a good thing to remember.

THIS is why I hang out here. GREAT info!

 

[Jenns01TA]

Thanks Mike! I agee 100% Marine One.

17yearoldStanger,

Here is what I originally typed and your corresponding questions with my answer as you posed them. I do not feel you are being out of line.

I have no formal ASE education and no technical degrees. My dad was a machinist and an Aerospace engineer. I am self-educated by way of hundreds of Mustang friends and buddies over a decade of fun times and trial and error. Haynes and Chilton were my bibles and beers and benches were a staple along with oil under my nails and cuts on my hands. Modulated engine technology is new to me and I am honest in my limited understanding. With this said I will answer based on my limited understanding. I am a work in progress and amicable to learning where my knowledge is incorrect.

Jenns05Stang: “Please correct me if I am wrong, and I hope that I am, but the old school Off Road H/X pipes I recall back in the day had no Oxygen sensors integrated into the exhaust loop and PCM profile."

1. What do you mean "no O2 sensors integrated in the exhaust loop"? It must be the wording. Ever since fuel injection w/ O2s started, its been in the loop. the first set is to check the AF, and the second set is the catalyst monitors.

Jenn’s Answer: This was a direct reference to the removal of 02s to install an Off Road exhaust set-up.

Jenns05Stang: “So, my deduction of brown's problem is that he has no heated 02 sensor signal going to the PCM. Because of this the PCM threw an "open loop" operation which is a call to the PCM for full rich fuel to compensate for there being no signal.

2. Open loop is not full rich fuel. It’s a set parameter of how much fuel there would be at WOT, or close to it. If full rich fuel was the case, it would flood the engine.

Jenn’s Answer: My limited understanding is that all 02s run between a minimum and maximum voltage based on Air and Fuel signals sent between the 02s and the PCM. The PCM uses the oxygen sensor input to regulate the fuel mixture aka the feedback control loop. If the PCM reads no 02 signal due to malfunction or removal, then the PCM calls for open loop operation. When the PCM falls into open loop it compensates by sending a fixed rich fuel mixture into the system.

Since operation default for most manufactures is roughly 3 minutes to reach mid-range voltage as the circuit runs its happy algorithms calculating deviations and awaiting Air/Fuel equilibrium, an engine will start and then about 2 minutes later – Bucking Stang with sputter and rough idle followed by a panicked driver shutting her down.

3. If the PCM theoretically went into open loop, there would be zero compensation. Compensation doesn't happen until closed loop.

Jenn’s Answer: I respectfully disagree with this statement. However, I am an open-minded lady and more than willing to review additional ASE documentation on the OBD-II and PCM calibration to change my mind.

Thank you for the open exchange. I do not ever think I know it all or close to enough. The day that I do think I have all the answers I will sincerely dislike myself.

Brown - let's us know how things turn out.

 

[brown spit8]

svttech - check engine light on before, only problems after tune

 

[Mike97gt]

svttech - check engine light on before, only problems after tune

Do you know what the code was before the tune?

 

[310stanger]

not to be a jerk but why oh why would you modify a car and then reflash with a new tune when you have a check engine light? fix your car first before you start modifying it. it jus makes things way easier on yourself. i hope you get it all worked out buddy. i know very well the horrible feeling of a car thats not running right.