I have been putting this car together and now im to the point of trying to figure out why my brake, vcs, trac and air bag lights are all on.. I didnt have the air bags hooked up. Someone told me thats why. So i hooked them up and none of the lights changed. I unpluged the battery for about 30 minutes, just the engine check light went off. Thats a differnt problem the code reads emissions, but yeah,, Please help if you have any idea..

 

more to add. i got the vsc light and trac light off.. now my brake light and air bag light is still on

 

What codes do you pull when you plug in a OBD scanner?

 

1. P0441 evaporative emission control system incorrect purge flow

2. P0442 evaporative emission control system leak detected (small leak)

3. P0446 evaporative emission control system vent control circuit malfunction

 

What engine mods do you have done if any?

 

just a axle back dual exhaust. i havent put my header back exhaust or my cold air intake on it yet

 

check your gas cap

 

thanks i will try that. but to be honest i want to figure my brake light and air bag light instead of the codes. I reset that codes three days ago and it hasnt came back on... My brake fluid level is correct, i bleed the brakes, and still no difference

 

Mileage? Have you ever ran your tank to empty?

As said, check that gas cap as all those codes could be caused by the cap. look at the gasket.

441= EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses.

442 = very small fuel vapor leak.

446 = again, EVAP related

I would start with the gas cap, then look for a disconnected or damaged hose around the air filter box that goes the evap solenoid, sometimes it gets knocked off when servicing the air filter, solenoid could have failled, the canister could be breaking down and causing the evap solenoids and valves to stick.

 

it's been known that for some reason some xB's just lose their MAF's for fun. On two seperate occasions has this happened to me. First time we were installing springs on a friend's car, once done, turned the car on, all the lights were on and it ended up being the MAF.

Second time was a completely seperate car during a completely seperate occasion. We were installing HID's and upon turning the car back on after we were done, the MAF somehow blew also.

Mind you on both occasions we never touched the MAF or any part of the exhaust system.

 

That is very, very odd. I think there is more to this story....

I have never heard of MAFs failing except on those boxes with K&N-styled filters and owners who over oil the media.

 

yeah we thought exactly the same, completely wierd...made absolutely no sense but it happened....twice o_O?

I can also add we had a friend that has a turbo box and for some reason all teh spark plugs went bad when he didn't turn the car on for a week....i think there's actually an explanation for this, but i dunno.

Fun times

 

davidward - this may be helpful:

https://www.scionlife.com/forums/arc...xt__index.html

 

i have never ran the tank out of gas. but i have it fixed so far... like i posted up ther my brake light is on and srs light.. does anyone know a reason why they would be on.. my brake fluid level is correct. my air bags is hooked up. i reset the computer and they are still on