MAF is maxed out...suggestions???
Thread Starter
Staging Lane
Joined: Jul 2002
Posts: 90
Likes: 0
From: Mechanicsville, VA
MAF is maxed out...suggestions??? My MAF appears to be maxed out at approximately 5600 rpms at around 429gm/sec. At any rpm above 5600 the MAF is stuck on this # when I review my autotap runs. Because of this the 02mv will decrease and the car will lean out slightly. It isn't a huge amount of leaning out but I thought that there might be an aftermarket unit like Granatelli or SLP that will measure airflow above these #'s. I have an ATI procharger and heads/cam so the airflow is significantly greater than stock. I have LS-1 edit but don't know what parameter to change to help this situation if it is possible to fix. Thanks for any suggestions.
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02Z06 ATI procharger D-1SC, 50# injectors, Ed Wright Tuning, 214/224 Comp Cam, CNC cylinder heads 9.7:1CR, FLP exhaust coming soon
11.29@124.14 1.62 60' Nitto Drag Radials 315/35-17
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02Z06 ATI procharger D-1SC, 50# injectors, Ed Wright Tuning, 214/224 Comp Cam, CNC cylinder heads 9.7:1CR, FLP exhaust coming soon
11.29@124.14 1.62 60' Nitto Drag Radials 315/35-17
FormerVendor
Joined: Dec 2001
Posts: 2,444
Likes: 2
From: WWW.SPEEDINC.COM
Re: MAF is maxed out...suggestions??? Go to the PE vs RPM table. This is your WOT fuel enrichment. Small changes make alot of difference, adding .1 may change your air fuel from 13-1 to 12-1.
Since your maf maxes out and it's relying only on the PE vs RPM table, your tune will also change for weather (colder air equals more boost), and load. So, when running a boosted car with a maxed out maf, be sure to keep an eye on the o2's and keep it tuned relatively rich.
Since your maf maxes out and it's relying only on the PE vs RPM table, your tune will also change for weather (colder air equals more boost), and load. So, when running a boosted car with a maxed out maf, be sure to keep an eye on the o2's and keep it tuned relatively rich.
