aschold

iTrader: (7)

Today I was driving and my SES light came on, and then about 10 minutes later after I had shut the car off and turned it back on, the light was gone and didn't come back on all the way home. Should I be concerned or was it just a fluke?

xi0V3MR

did you just get a high flow cat or anything like that?that will usually turn it on and off like that.

hayden81

iTrader: (1)

Go to AutoZone and get the code scanned. Could be bad gas could be phantom knock, could be a major problem you proactively fixed before it cost you $$$. Or you just installed a exhaust component and now your back O2 thinks you are running without emissions control.

aschold

iTrader: (7)

How am I supposed to do that if the light is off again? I don't have any new exhaust components.

Toxin

iTrader: (2)

I've had that a few times. Shows up and disappears. I'm guessing p300 cause of Cosworth M2's, never managed to get it scanned before it went away.

whitegalant

iTrader: (3)

The code is stored in the ECU... So although its no longer popping a CEL you can still see what it popped it for.

revvin9k

iTrader: (23)

+1 , more than likely it's the p0300 code.

rlui0514

iTrader: (2)

Could be a fluke... happens to me sometimes, I have catless and installed the extension for the o2 sensor

Silver06evo9mr

iTrader: (47)

hope you dont have the water leak problem like i did and like 20 other people. you better search for that thread.

aschold

iTrader: (7)

Water leak? FML.

Silver06evo9mr

iTrader: (47)

my problem with my SES light = https://www.evolutionm.net/forums/ev...ml#post5609105

stickey - https://www.evolutionm.net/forums/in...lins-rain.html

aschold

iTrader: (7)

I'll check that out but I highly doubt that's what the problem is, my car is rarely in the rain anyway. I drove the car today, no light. Think it was just a fluke.

bigben

iTrader: (4)

random misfire

aschold

iTrader: (7)

Pretty sure thats all that it was.