friday afternoon i descreened my MAF , the car ran great all weekend, incuding a couple of good streetraces. sunday night while just cruising down the interstate, the SES light came on. does it usually take a couple of days for a code to trip the light if you have MAF problems? ive only had the car two weeks so i dont have an autotap yet.

 

Could be a lean code.

Check to make sure you don't have a vacuum leak.

 

just drove the car to get lunch , after about a mile SES light goes off. who knows, i thought once the light comes on it was there until you reset it?

 

when the light goes away does that mean the car is fine, or does it store that code to be retrieved at a later time?

 

Hi there,
The codes will store for a minimum of 50 ignition cycles.
Then, if the fault does NOT present itself again, it will clear from PCM memory.Besttoyou, c4c5

 

No, SES lites can go off on their own.