Ok so here it goes
Bought a tc had a check engine light on

took to a dealer and they said the MAFS was messed up because of a crappy intake system the previous owner had put on.

So put on a injen intake and new MAFS. Still have check engine light on.

Do I have to reset the light? or does it do it automatically?

 

your best bet would be to disconnect the negative battery terminal so that the ecu resets.

 

ill try that

 

Disconnect MAF
Disconnect Neg Terminal
Wait 15mins or so.
Reconnect Battery
Reconnect MAF
Start the car and let it idle for atleast 10mins to let the ECU re-learn

if that doesnt work you need to take it to the dealer and have them reset it with the TIS machine

 

Ok so the light went off after I reset the Ecu. Thanks!

Now i just have a maitenence light on ...

 

Just turn it off

 

maintenance one i found out is the oil change one. if you hold in the "mileagereset" button and turn your car off, keep holding it and turn it to "accessory" and watch the numbers drop to 0. (takes like 6 or 7 seconds) then when you turn it back on it will be off. i just found that the hard way from driving to the dealer

 

^ yeah, supposedly it appears every 5K mi.. There's also the tire one in the glovebox..

 

^^^ ya i hate the tire one especially during the winter. but once i get my aftermarket rims on it'll stay on all the time since i wont replace censors