Custom Tunes where can you get one? O2 code being thrown.

whedgepeth · Post by **whedgepeth** » Sat Jun 27, 2009 10:18 pm

U7135
U7135-9r18.crom
2009 Challenger SRT 8
True Flow CAI
Doug Thorley Long Tube Headers
JBA CAT Back Exhaust
High flow MagnaFlow Cat

Mike_Levy · Post by **Mike_Levy** » Sat Jun 27, 2009 10:44 pm

Thats because of the headers. Only on rare occurances (like my truck) can Hemis run long tubes without throwing codes. Turn the rear O2s off, and it won't happen.

Johan should be able to do it for you.

whedgepeth · Post by **whedgepeth** » Sun Jun 28, 2009 3:40 pm

How do you turn off the rear sensor?

whedgepeth · Post by **whedgepeth** » Sun Jun 28, 2009 3:43 pm

Also is it possible to change the idle rpm while in gear or in park or neutral ? Instead of 650 mable 850 the reason I asked is the car is a auto and coming up to stop light it stalled not enough fuel or idle to low?

whedgepeth · Post by **whedgepeth** » Sun Jun 28, 2009 3:55 pm

I found the option and have change the idle speeds still not sure about the fuel setting %%% ? How do I get in contact with Johan? Thanks for your help Mike!!

Post by **06MonteSS** » Sun Jun 28, 2009 6:30 pm

just post here on the forums... he'll see/find it eventually, when he gets back in the office during the week... none of them are around on weekends - only during the week and only during normal business hours - 9-6...

whedgepeth · Post by **whedgepeth** » Sun Jun 28, 2009 10:01 pm

Cool thanks again.

Post by **mikel** » Mon Jun 29, 2009 10:40 am

You can disable the rear O2s in the adjustable parameters...no need for a custom tune.

whedgepeth · Post by **whedgepeth** » Mon Jun 29, 2009 9:46 pm

I think a custom tune is needed. Im know getting two seperate codes thrown for bank 1 and one for bank two both being too lean. I have increased bank 1 to 12% and Bank 2 to 11% so far no more code but I dont know if I have gone to far just a shot in the dark without someones advice who has knowledge in this area?

Post by **06MonteSS** » Mon Jun 29, 2009 10:08 pm

have you gone into the "Modify Tune" menu and find the OBDII section to be able to disable the codes yourself like Mike said you can???

whedgepeth · Post by **whedgepeth** » Mon Jun 29, 2009 11:20 pm

Yes I have disabled the 2nd O2 sensor. That codes hasn't been thrown since I made that change and the other code for bank 1 and bank 2 being too lean haven't been thrown since I increased the the fuel percentage in 1st 2nd and 3rd bank 12%, 11%, and 9% respectively. Now I don't know if I'm running it to rich. Rich is better than lean but I'd rather it be perfect if you know what I mean? Thats why I'm trying to get a custom tune.

Custom Tunes where can you get one? O2 code being thrown.

Custom Tunes where can you get one? O2 code being thrown.

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