Service Engine Soon Light Is On 2004 Mustang V6 - Page 2 - Forums at Modded Mustangs
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post #21 of 39 Old November 16th, 2011, 10:47 AM
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yea, at 84k is when my EGR crapped out... gutted that shit...
I would have if I could. I got the "EGR insufficient flow" code or something like that. After pulling the EGR off and noticing it wasn't clogged at all someone told it me it was the DPFE sensor which fixed it right up.
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post #22 of 39 Old November 16th, 2011, 12:12 PM
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Cleaned up the engine bay and not having the hard line makes it so much easier to get to the plugs, as well as when my passenger side header crapped out from the condenser drip



2011 GT 5.0L Auto
GT500 Axleback | Lethal 3" O/R H-Pipe | JLT Intake | Ortiz Performance 91 Tune | Koni Str.T shocks/struts | STEEDA Ultralight springs | UPR LCAs w/ relo brackets | PHB
12.76 at 113mph, 2.07 60' on stock tires
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post #23 of 39 Old November 16th, 2011, 05:22 PM
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Any luck/updates, OP?

Your SCT tuner will definitely read your DTCs without a problem.
If you have any questions/concerns reading the codes, please feel free to contact our tuning specialists. They'd be happy to help you read and diagnose the DTCs.



Please feel free to PM me directly with any questions you might have in the future!

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post #24 of 39 Old November 17th, 2011, 11:13 AM Thread Starter
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will do chris

and thank you all, i haven't done it because I have been overwehlm at work with a lot of work to do. this saturday i will plug the tuner in and see what happens. the car has been running normal and better with the 87 performance tune from bama. this SES light came on after 90 miles driving after i had my 85,000 mile service done at ford. the ford service folks that did my car at the time said that everything is running good before the light ever appeared, unless they missed something.
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post #25 of 39 Old November 18th, 2011, 11:13 AM
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autozone will also tell u what it is for free
True but theyre inaccurate sometimes, I went to them to diagnose a check engine light, they told me it had to do with something completely different than the actual problem ( bad air pump)
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post #26 of 39 Old November 18th, 2011, 01:22 PM
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will do chris

and thank you all, i haven't done it because I have been overwehlm at work with a lot of work to do. this saturday i will plug the tuner in and see what happens. the car has been running normal and better with the 87 performance tune from bama. this SES light came on after 90 miles driving after i had my 85,000 mile service done at ford. the ford service folks that did my car at the time said that everything is running good before the light ever appeared, unless they missed something.
it only takes like 10 secs to scan for a code, its not a big project. you can do it next time you get in the car. Honestly shouldnt take more than 30 secs from the time you plug the tuner in and the time you take it out

2004 Bolt on & Cammed 3.9L V6
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post #27 of 39 Old November 19th, 2011, 12:25 PM Thread Starter
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checked it with the sct tuner and I only got a P0430 code. dont have time to research it but need your guys expert advice:

1. Is it life threatening on my car
2. does it need to be fixed ASAP or ignore until i have sufficent fund to replace it
3. i have the Pypes true dual exhaust x-pipe with street pro muffler and catalyic converter high flow kit from AM. could this be the culprit?
4. the car still run fine any effects down the road
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post #28 of 39 Old November 21st, 2011, 09:59 AM
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you have a bad cat...

"Catalyst System Efficiency Below Threshold (Bank 2)"

Bank 2 is driver side, and the downstream o2 sensor is detecting an uneven flow...



2011 GT 5.0L Auto
GT500 Axleback | Lethal 3" O/R H-Pipe | JLT Intake | Ortiz Performance 91 Tune | Koni Str.T shocks/struts | STEEDA Ultralight springs | UPR LCAs w/ relo brackets | PHB
12.76 at 113mph, 2.07 60' on stock tires
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post #29 of 39 Old November 21st, 2011, 10:17 AM Thread Starter
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so to under stand correctly. the cataylic converter has crap out and needs to be fixed or replaced. jeez I sure hate Pypes as the high flow I have is pypes which it camed with the pypes true dual exhaust.

do you think the O2 sensor is the culprit here and maybe i need to buy the ntk sensor. I recall that the stock sensor was not long enough to connect to the converter so the installer gave me some generic brand to do the trick?

is this some sort of urgent matter that needs fixing?
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post #30 of 39 Old November 21st, 2011, 10:54 AM
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oh yea that can definitely be it. NEVER use anything other than Motorcraft o2 sensors. Bosch and other brands are truly junk and don't give correct readings.

Put the stock ones back in and get some wire extenders and see if that fixes the problem.

If it's a high flow cat I doubt it's gone out, probably the sensor behind the cat.



2011 GT 5.0L Auto
GT500 Axleback | Lethal 3" O/R H-Pipe | JLT Intake | Ortiz Performance 91 Tune | Koni Str.T shocks/struts | STEEDA Ultralight springs | UPR LCAs w/ relo brackets | PHB
12.76 at 113mph, 2.07 60' on stock tires
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post #31 of 39 Old November 21st, 2011, 12:54 PM Thread Starter
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which i had the stock ones for the 2 front ones, unfortunatly i dont have it. i was thinking about buying the AM ones, the NTK or what ever it is. Any suggestion or advice. The catt dont even have a year as this was install along with the true dual back in july.
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post #32 of 39 Old November 21st, 2011, 01:18 PM
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I would order from TousleyFordParts.com. Just ordered a replacement o2 sensor for mine and it was $39 plus shipping. Half the price of O'Reilly's and the dealership



2011 GT 5.0L Auto
GT500 Axleback | Lethal 3" O/R H-Pipe | JLT Intake | Ortiz Performance 91 Tune | Koni Str.T shocks/struts | STEEDA Ultralight springs | UPR LCAs w/ relo brackets | PHB
12.76 at 113mph, 2.07 60' on stock tires
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post #33 of 39 Old January 3rd, 2012, 09:57 AM Thread Starter
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dude, this is weird, but the SES light was off this morning. Is this normal. Car runs fine this the light came on in Nov. 10th.
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post #34 of 39 Old January 3rd, 2012, 10:18 AM
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Sooo look back and read what guy said it was the O2 sensors ??
<< This Guy !

Im just a bad mofo like that ;p

Anyways, Ill +1 to the info above, tousley is a great place to order from !!! do it!
Nothing but ford oe o2's
And make sure your tune is correct to your exhaust set up...
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post #35 of 39 Old January 3rd, 2012, 12:57 PM Thread Starter
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I did a dtc with my sct tuner and the p0430 is still there, however, I turn the car on afterwards and the SES light was off. I will call BAMA/AM sometime this week to verifly. I have a copy of the invoice with my tune information and everything is accurate from what I stated when I filled out the questionaire after the purchase order
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post #36 of 39 Old January 3rd, 2012, 02:45 PM
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Get w/ Chris the rep and see what they can do, might try a different tune just to double check that before you spend money. But chances are its a O2 problem. Especially since they gave you cheap ones
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post #37 of 39 Old January 3rd, 2012, 02:54 PM
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Anyways, Ill +1 to the info above, tousley is a great place to order from !!! do it!
Nothing but ford oe o2's
And make sure your tune is correct to your exhaust set up...
Make that +2 to Tousley. They've saved me so much in Cobra parts it's incredible. Most of the time since the stealership has to order the parts too, it's quicker to have Tousley ship them to me.

And nothing wrong with Bosch HOS's, seeing as I highly doubt Ford makes their own HOS's. The vast majority of sensors/non-unique components are just OEM re-branded. I can think of at least 4 places that re-brand the Delco 39MT starter for instance, and it's the exact same part no matter where you buy it.
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post #38 of 39 Old January 3rd, 2012, 08:55 PM
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you have a bad cat, i went through the same thing/code, it will get progressively worst most likely, just dont drive your car hard for the time being.
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post #39 of 39 Old January 5th, 2012, 10:07 AM Thread Starter
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how are you certain that it is a bad cats. as for the word "CATS". do you mean the Catheylic converter or is it the muffler.

AMChrisYoung, would it be okay if I shoot you my SCT/Bama Order # to you to see if one of your represenatative could verifly if my tunes are in accordance to the modded spec of what I mention on the online form?

The SES light is off now when I start the car, but the P0430 shows on the tuner.
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