[Kuruption]

So i bought this thing and did the "performance tune" thing on my car... I still have a check engine light. All i did was set the performance tune, thats all. Somthing i do to it... I have mac axel back exhaust and cold air intake. Please help!

 

[kscoyote]

So i bought this thing and did the "performance tune" thing on my car... I still have a check engine light. All i did was set the performance tune, thats all. Somthing i do to it... I have mac axel back exhaust and cold air intake. Please help!

What octane are you running?

 

[Kuruption]

87 octane i believe... well last time i fueled it was.

 

[Kuruption]

whatever regular unleaded is.

 

[kscoyote]

87 octane i believe... well last time i fueled it was.

That's why. With the performance tune you need 91 at a minimum.

 

[Kuruption]

I have almost an empty tank... can i just fill 91 octane in there?

 

[kscoyote]

I have almost an empty tank... can i just fill 91 octane in there?

yeah, that should work!