Yeah... What A Great Day
11-28-2007, 04:24 PM
#26
Super Member
Thread Starter
You've got that the wrong way around. Upon start up, the computer is in open loop (i.e. reading off of fuel tables for coolant temps, iat, throttle position, etc.). Upon reaching a set coolant temp (160 degrees for my mustang), it switches to closed loop and will rely on the maf and the 02 sensors to keep a/f at 14.7. Upon approximately 85% throttle, the computer goes back into open loop, and you get your commanded a/f and timing, but the MAF is still reading the air flow.
When you disconnect the maf, you get into the failed maf tables, which are different all together.
When you disconnect the maf, you get into the failed maf tables, which are different all together.
11-29-2007, 07:50 PM
#27
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07 Z06, 08 Rover Sport, 03 Dmax, 13 Diavel
You've got that the wrong way around. Upon start up, the computer is in open loop (i.e. reading off of fuel tables for coolant temps, iat, throttle position, etc.). Upon reaching a set coolant temp (160 degrees for my mustang), it switches to closed loop and will rely on the maf and the 02 sensors to keep a/f at 14.7. Upon approximately 85% throttle, the computer goes back into open loop, and you get your commanded a/f and timing, but the MAF is still reading the air flow.
When you disconnect the maf, you get into the failed maf tables, which are different all together.
When you disconnect the maf, you get into the failed maf tables, which are different all together.
Aj
