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jmd · 06-26-2009, 03:13 PM

my son has a 2007 mustang. he bought a pypes off road exhaust kit and a intake kit that comes with a tuner. the tuner comes with a tune for his mods. we put it on the dyno and he had 14.5 afr at idle. at wot it never dropped below 13.99 afr. we stopped the pull at 4600 rpms because of the afr. the guy who put the tune in the tuner says it is ok because the sniffers you put on the tail pipes for afr readings are not accurate. i think he needs to add fuel. what do you guy's think. tks

06-26-2009, 03:13 PM	#1
jmd Senior Member Join Date: May 2008 Posts: 3,177	2007 mustang tune question my son has a 2007 mustang. he bought a pypes off road exhaust kit and a intake kit that comes with a tuner. the tuner comes with a tune for his mods. we put it on the dyno and he had 14.5 afr at idle. at wot it never dropped below 13.99 afr. we stopped the pull at 4600 rpms because of the afr. the guy who put the tune in the tuner says it is ok because the sniffers you put on the tail pipes for afr readings are not accurate. i think he needs to add fuel. what do you guy's think. tks __________________ Cadillac man