QUICK_AG

I am currently getting a maintenance required light flashing on start up. I have a comptech w/ aftercooler and AEM EMS, I was under the assumption that this would not work with AEM EMS since the factory pcm is gone? Anyone out there that can shed some light on this? Car seems to be running ok and boosting fine. Thanks

Slows2k

It works just like a stock car, through the cluster. The EMS doesn't remove the "Maint. req." function.

Clear the light, or do some Maintenance

Slows2k

The instuctions are in your owners manual, and in the UTH forum FAQ.

ex-eclipse

I have done the maint req light 3 times now and I need to look it up everytime for some reason.

Boostaholic

I have this same issue, but as he stated, the maintenence required light doesnt stay on, it just blinks a few times when you start the car. So this is the AEM EMS equivilant of the check engine light? It wont stay illuminated if there is a problem?

minitoyota

Light is normal and is based on mileage driven. It is not controlled by the ems and is totally different from the check engine light. procedure to reset it is in the owners manual.

ChefJ

It will only blink a few times in the beginning stages. Another few hundred miles and it will stay on.

Boostaholic

Yeah I found a post on how to reset it after I changed my search terms a bit. I beleive xviper posted it, but thats definatly what mines doing, it just rolled over 12k miles so, that makes sense. Thanks as always guys.

raymo19

Spec_Ops2087

yep, my maintence required light just started to blink a few days ago as well. Have to stop being lazy and clear it