Originally Posted by
myredprky
It has two 02s fitted,one narrowband and one wideband.they are both fitted 180deg from each other in the y pipe under the bellhousing both reading gas from all 8 cylinders.One thing I hav now spotted is the blm cell boundries in Tunerpro is completly different to all the other bins I have.instead of ...low 900 rpm...mid 1500 rpm...high 2000 rpm I have....
low 900 rpm.....mid 2500rpm ...... high 5250 rpm ?????
could this have an input to this ????
If you start her up when warm she will idle great 15.1-1 afr then go closed loop and stay fine till you blip the throttle then all hell breaks loose when she returns to idle,the blm rise mixture goes rich 10.5-1 co 8.5% and hc hits just under 3000,
narrowband 02 to ecu on tunerpro is reading between 550 and 750mv
Please help !!!!!aaaahhhhh
cheers IAN