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Old Apr 25, 2008 | 09:14 PM
  #2026  
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Originally Posted by c41250n
dont know whatz wrong, it can read all the other things read fine, the AFR is kinda off tho.
and yea, i just unplug the int-x before i install the cobb.
i basically just have to take off the 5 plugs that pluged into the int-x and plug it back to the stock ECU right?
What are your Airflow readings while at idle?

Yes, thats correct.
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Old Apr 25, 2008 | 09:16 PM
  #2027  
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Originally Posted by c41250n
how can i bring it back to the close loop?
Who installed your turbo kit? Did they install the factory wideband o2 sensor? What does your AFR read with the AccessPORT?
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Old Apr 25, 2008 | 09:19 PM
  #2028  
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you mean the Mass sensor right?
if it is, then it reads 5
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Old Apr 25, 2008 | 09:21 PM
  #2029  
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is the factory wideband O2 sensor the one that goes into the stock cat?
if it is, i still have it, and the AFR the cobb reads is different then the one i have on my aftermarket AEM wideband O2 sensor!
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Old Apr 25, 2008 | 09:29 PM
  #2030  
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From: Central IL
5 is good.

Correct, the Cobb reads the factory wideband sensor. This is the one before the stock cat. There is also another factory sensor behind the stock cat but that one doesn't really matter. It also sounds like you have a 3rd O2 sensor (your aftermarket one). That one doesn't really matter either.

The factory PCM needs a good reading from the factory front O2 sensor in order to run correctly. Do you have the factory front O2 sensor connected?
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Old Apr 25, 2008 | 09:29 PM
  #2031  
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From: Daly City Ca.
the equiv ratio also does not change on the cobb. stays around 14.6 +/-2. my afr on my aem shows that the car goes really rich everytime i let go of the gas for a split second before going back to normal.
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Old Apr 25, 2008 | 09:34 PM
  #2032  
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Just ordered from MM Can't wait to get it!
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Old Apr 25, 2008 | 09:34 PM
  #2033  
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i dont have it then. my check engine light is on cause of the o2 sensor according to the cobb. bank 1 sensor 1.
what step should i take now?
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Old Apr 25, 2008 | 09:35 PM
  #2034  
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It sounds to me like you don't have the OEM O2 sensor installed. With the Interceptor you don't really need it because it controls the fuel and timing. However, when using the Cobb to control the fuel and timing you need the OEM wideband sensor installed before the CAT so that the PCM can see the airfuel ratio. Do you have the OEM wideband O2 sensor installed before the cat?
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Old Apr 25, 2008 | 09:36 PM
  #2035  
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Originally Posted by c41250n
i dont have it then. my check engine light is on cause of the o2 sensor according to the cobb. bank 1 sensor 1.
what step should i take now?
Don't drive your car until you install the OEM wideband O2 sensor!
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Old Apr 25, 2008 | 09:38 PM
  #2036  
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for the greddy kit i had to take off the stock exhaust manifold and there was no where to put it in after. was i supposed to make a hole for it? looking at my stock manifold, there was still a sensor there.
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Old Apr 25, 2008 | 09:48 PM
  #2037  
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The Greddy turbo downpipe has a hole (O2 Bung) in it for the OEM wideband O2 sensor. Is that where you have your aftermarket O2 sensor installed? If so, remove the aftermarket O2 sensor and reinstall the one that is in your stock exhaust manifold. That should fix your problem until you can have another O2 Bund welded into your Greddy downpipe or Cat for your aftermarket O2 sensor.
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Old Apr 25, 2008 | 09:53 PM
  #2038  
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From: Daly City Ca.
Originally Posted by tdiddy
The Greddy turbo downpipe has a hole (O2 Bung) in it for the OEM wideband O2 sensor. Is that where you have your aftermarket O2 sensor installed? If so, remove the aftermarket O2 sensor and reinstall the one that is in your stock exhaust manifold. That should fix your problem until you can have another O2 Bund welded into your Greddy downpipe or Cat for your aftermarket O2 sensor.
you know what, i dont know what they did with the hole on the greddy turbo downpipe, i have no clue, need to go find out. cause i know i went to golden muffler to wield the aftermarket O2 sensor.....
now im pissed. hate the place who installed the turbo kit for me.
they didnt even install the compression pipe (Aluminum flange elbow)for me, they just gave me back.
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Old Apr 25, 2008 | 10:09 PM
  #2039  
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Originally Posted by Rocketman1976
That doesn't sound very good. My friend is an expperienced drag racer and his 2008 Mustang GT 5 speed (Currently stock) barely beat me before the Cobb AP tune and the Mazsport ignition. He is afraid that I will beat him now that I have the ignition and next week will have Cobb AP. He got me by about 3 cars from a 40-115 mph. At the track he ran a 13.60 @ 103 mph.

Cobb can add 10-15 rwhp and the Ignition adds 8-10, so with up to 25 more rwhp he will be in trouble

I will dyno after I get my car setup right with the Cobb. I can compare the two upgrades to my old exhaust and K&N drop in dyno.
Ja I just test drove the Mustang and it didn't seem any faster than mine.

Its a run for the money.
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Old Apr 25, 2008 | 10:09 PM
  #2040  
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you know what, i just checked
i just jacked up the car, and the O2 sensor is there, with blue black and white wires.
i dont know why the stock manifold still has a O2 sensor on
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Old Apr 25, 2008 | 10:23 PM
  #2041  
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Old Apr 25, 2008 | 10:29 PM
  #2042  
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thanks jack.
he is working with me.
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Old Apr 25, 2008 | 11:24 PM
  #2043  
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Originally Posted by Rocketman1976
That doesn't sound very good. My friend is an expperienced drag racer and his 2008 Mustang GT 5 speed (Currently stock) barely beat me before the Cobb AP tune and the Mazsport ignition. He is afraid that I will beat him now that I have the ignition and next week will have Cobb AP. He got me by about 3 cars from a 40-115 mph. At the track he ran a 13.60 @ 103 mph.

Cobb can add 10-15 rwhp and the Ignition adds 8-10, so with up to 25 more rwhp he will be in trouble

I will dyno after I get my car setup right with the Cobb. I can compare the two upgrades to my old exhaust and K&N drop in dyno.
there is no way the igniton solution and the cobb even together are gonan gain you 25 or more hp on cobb stage 1 maps or even jeffs basic map!

My flywheel made bigger difference as far as responsiveness. and the cobb followed.. the ignition did some but not very much.

I beat mustang gt's I beat 350'z
Srt's dont beat me by much

that 0-60 was at a slight uphill with wheel hop and how humid texas day and not really trying.

my friend with his gt doesnt want to run against my car hes waiting on his nos lol hes afraid..

but my friends little civic is quick it will beat your 8 and you frien would prob only beat him by like 1.5 car lengths or 2 if he gets lucky.

DRAG RACES dont take much SKILL
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Old Apr 25, 2008 | 11:31 PM
  #2044  
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ohh BTW if you call losing by 3 car lengths barely losing then ummm I dont know.. i d call that you got smoked.. to me barely losing is door to door and losint by no more than a car length.. thast what happened with me and my friends civic i barely lost but more than 2 car lengths is what i call burned lol..

my friend 2005 gt we are both door to door and i puls just a tad bit.. that is what i call barely winning.. but i wouldnt say i smoked him to him

oh and BTW this was before my ignition or the cobb

Last edited by 05rx8mazda; Apr 25, 2008 at 11:34 PM.
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Old Apr 26, 2008 | 12:11 AM
  #2045  
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Well I have been on the current map for a few days and all is looking good. Just to make sure a LTFT of -9 is negligable right? Or should I go to a 4b map? I remember MM saying ignore LTFT after a few drive cycles as long as it's bellow 12.
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Old Apr 26, 2008 | 12:27 AM
  #2046  
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Anyone know when Jeff will be back from Tuning in Cali? I'd love to get the maps for those of us who are running lean under WOT
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Old Apr 26, 2008 | 12:33 AM
  #2047  
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is jeff in Cali now?
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Old Apr 26, 2008 | 12:45 AM
  #2048  
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Originally Posted by Rocketman1976
That doesn't sound very good. My friend is an expperienced drag racer and his 2008 Mustang GT 5 speed (Currently stock) barely beat me before the Cobb AP tune and the Mazsport ignition. He is afraid that I will beat him now that I have the ignition and next week will have Cobb AP. He got me by about 3 cars from a 40-115 mph. At the track he ran a 13.60 @ 103 mph.

Cobb can add 10-15 rwhp and the Ignition adds 8-10, so with up to 25 more rwhp he will be in trouble

I will dyno after I get my car setup right with the Cobb. I can compare the two upgrades to my old exhaust and K&N drop in dyno.
thats what im saying. the 8 isnt as slow as everyone thinks

Originally Posted by c41250n
but itz still at -0 when i try v1.1b map. something is not right, the STFT number never changed.
my car stalls a few times after i let go of the gas suddenly and go to neutral. and my car back fires a lot, almost every gear, and itz freaking loud too.

i dont know, im gonna try another map, any input is good
thanks
sounds like its too rich, but i dont know. post up a datalog graph if you can
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Old Apr 26, 2008 | 01:00 AM
  #2049  
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i think i've figured out what happened!
i think my O2 sensor 1 is broken!
most likely need to replace it
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Old Apr 26, 2008 | 01:06 AM
  #2050  
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Originally Posted by devildog1679
Well I have been on the current map for a few days and all is looking good. Just to make sure a LTFT of -9 is negligable right? Or should I go to a 4b map? I remember MM saying ignore LTFT after a few drive cycles as long as it's bellow 12.
i would say to at least to go to 4b and maybe 5b.
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