how many peeople with turbo set ups have their check engine lights on? is this normal to have it come on after you install a turbo kit? Also, is there anyway to reset it once it ocmes on after installing the turbo? this is probably a stupid question but im just curious...

 

mine is always on lol. if you run dezods black box it tricks your car to always think its lean so that will trip the cei. also if you dont run the black box and run emanage your afrs drop low enough to trip your cei. it will say upper bank o2. dont worry about it, get the code checked and if it has somehting to do with afr like a wideband code, ignore it. (as long as your tuned ignore it)..

 

all the turbo guys get cel because they are removing the cat in the manifold when they put on the turbo manifold. Well unless you get a manifold from dezod with a cat in it. The second 02 sensor in our car does nothing but read the diffrence from the first one to see if the cat is working properly and its also how an emmisions test is done on ur cars, no sniffer its built in! If you run without a cat like almost every turbo guy is youll get a cel but there are ways to fight it. Most comon is to take a spark plug anti foulers (basically just threaded pipe) stack two of them and put the 02 on the end so that is moves it out of the direct flow of exhaust causing it to read slightly less hydrocarbons and thinks there is a working cat. Its kind of hit or miss tho, some say it works some still get a light. Do a search for anti fouler and you should find it on here. Also my idea which i havent tried yet is to plug the hole and weld in the second 02 behind our second cat and see if the light goes out. It might not be hot enough tho and it might through a heater circut malfunction code tho.

 

cats? who has those? i have my 2nd one antifouled and it doesnt work lol.