Hi, So yesterday I finally got around to installing my Maft Pro. I have it set up in speed density mode and the boost controller set up and working.
I have it tapped in to monitor Vf on Ax1 and this is where I'm confused.
At idle Vf pretty much stays at 4.43 volts.
Once it's warmed up and I'm cruising it bounces a bit but it stays around 3 volts
When I'm boosting and accelerating it's at 0.00 volts.
My AFRs at idle are 13.8 - 14.4 (it was a steady 14.7 at idle before maft pro)
When normal driving the AFRs bounce around a lot more than before the Maft Pro install (I was previously on a Lex AFM) anywhere from 12 - 16
When boosting the AFRs fluctuate between 9.8 and 12.8
So my questions involve tuning with Vf - from what I've found on the forums it's more likely that I'd be seeing 0.00 at idle instead of 4.43 right?
Even with Vf steady at 4.43 while idling the AFR fluctuates and never goes leaner than 14.4
Does this sound like something could be faulty? Like maybe my wideband o2?
I have the Maft Pro set up with the settings from the MKIII quick setup guide for version 5 that I found on fullthrottle's site
(link: http://www.fullthrottletech.com/attachment.php?attachmentid=1067&d=1236469843 )
My mods are the usual:
3" turbo back exhaust
intercooler and 2.5" hard pipes
550cc injectors (tho the P.O. of the injectors said "had tested, actually flow much more than 550!" so who knows - I'm going to have them tested this winter when I do a refresh on the motor)
LC-1 Wideband
Aeromotive AFPR (FP set at 33PSI w/out vacuum attached)
Any help or direction from someone who's done this before would be great
Thanks!
I have it tapped in to monitor Vf on Ax1 and this is where I'm confused.
At idle Vf pretty much stays at 4.43 volts.
Once it's warmed up and I'm cruising it bounces a bit but it stays around 3 volts
When I'm boosting and accelerating it's at 0.00 volts.
My AFRs at idle are 13.8 - 14.4 (it was a steady 14.7 at idle before maft pro)
When normal driving the AFRs bounce around a lot more than before the Maft Pro install (I was previously on a Lex AFM) anywhere from 12 - 16
When boosting the AFRs fluctuate between 9.8 and 12.8
So my questions involve tuning with Vf - from what I've found on the forums it's more likely that I'd be seeing 0.00 at idle instead of 4.43 right?
Even with Vf steady at 4.43 while idling the AFR fluctuates and never goes leaner than 14.4
Does this sound like something could be faulty? Like maybe my wideband o2?
I have the Maft Pro set up with the settings from the MKIII quick setup guide for version 5 that I found on fullthrottle's site
(link: http://www.fullthrottletech.com/attachment.php?attachmentid=1067&d=1236469843 )
My mods are the usual:
3" turbo back exhaust
intercooler and 2.5" hard pipes
550cc injectors (tho the P.O. of the injectors said "had tested, actually flow much more than 550!" so who knows - I'm going to have them tested this winter when I do a refresh on the motor)
LC-1 Wideband
Aeromotive AFPR (FP set at 33PSI w/out vacuum attached)
Any help or direction from someone who's done this before would be great
Thanks!