Hi All,
I've been trying to chase down a high AFR reading for some time...initially it was caused by a bad sensor which seemed to fix it...partially. My combo is as follows:
- 60Lb injectors with TT 6.1
- PLX wideband
- PowerLogger
- 3.5 inch MAF and Translator
- Stock intake/heads
- TE 60 Turbo
- Cottons Front mount intercooler
I've noticed that my AFR hovers right around 12.5-13.5 when in open loop (observed at engine startup) and then as soon as it goes to closed loop the AFR jumps to 15, and when I begin to give it throttle the AFR continues to rise to as high into the 17s. The more immediate the throttle I give it the quicker it leans out.
Is there something obvious that is going wrong here? Are there parameters I need to be tweaking in the my TT chip fueling to prevent the rise in AFR?
Is there more information I should be providing in order to diagnose this problem?
Thanks,
Jason
I've been trying to chase down a high AFR reading for some time...initially it was caused by a bad sensor which seemed to fix it...partially. My combo is as follows:
- 60Lb injectors with TT 6.1
- PLX wideband
- PowerLogger
- 3.5 inch MAF and Translator
- Stock intake/heads
- TE 60 Turbo
- Cottons Front mount intercooler
I've noticed that my AFR hovers right around 12.5-13.5 when in open loop (observed at engine startup) and then as soon as it goes to closed loop the AFR jumps to 15, and when I begin to give it throttle the AFR continues to rise to as high into the 17s. The more immediate the throttle I give it the quicker it leans out.
Is there something obvious that is going wrong here? Are there parameters I need to be tweaking in the my TT chip fueling to prevent the rise in AFR?
Is there more information I should be providing in order to diagnose this problem?
Thanks,
Jason