[bbyevo8u]

hello everybody im sry i have to post this on your guys forum but evolutionm.net has not been working for me for the past few days and i need to know something, please dont flame i dont know were else to ask.

ok i just put on a cone inake and tbe with high flow cat, now everything went well no leaks and no check engine light. two day later i went to drive to my friends house so i hop on the parkway "first time on the pkwy since the install" and bam the check engine light went on.

so my question: is it normal for the check engine light to go on with a hfc? i thought that you dont get a cell light with a hfc i just want to know if everything ok.

just so you guys know i am going for a tune in a couple days!

thanks for helping a evo borther out

John

 

[bbyevo8u]

oh i for got to say i have a evo 9!

 

[bbyevo8u]

or maybe somebody can give me another evo 8/9 website the only one i know of is evom.net

sry if this thead is pissing anyone off!

 

[antics22]

try socalevo.net. They have good info on 9's and 8's...


By the way, your best bet is to pull the check engine code using an OBDII reader. That will tell you exactly why your car threw the light. Depending on where you live, Autozone rents them for free as well as many other auto parts stores.... go in, ask to borrow the OBDII reader.. use it to pull the code(s)... it will start with P0XXX with the XXX being the code number... then, you can google the code and it will tell you what threw the light. Also, you can reset the light with the same tool.

good luck.

 

[bbyevo8u]

try socalevo.net. They have good info on 9's and 8's...


By the way, your best bet is to pull the check engine code using an OBDII reader. That will tell you exactly why your car threw the light. Depending on where you live, Autozone rents them for free as well as many other auto parts stores.... go in, ask to borrow the OBDII reader.. use it to pull the code(s)... it will start with P0XXX with the XXX being the code number... then, you can google the code and it will tell you what threw the light. Also, you can reset the light with the same tool.

good luck.

thanks for the help :thumbup:

 

[PDXEvo]

Well stated Antics

 

[TriStateEvo]

A check engine light will come on when you use a high flow cat, because the computer will think that the cat is not working or is past it's life cycle. The P420 code is a catalytic converter inefficiency code and is there to warn you that it's time for a new catalytic converter. You can either take care of this electrically (a CEL fix) or you can just use a spark plug anti-fouler method to make it go away.

 

[bbyevo8u]

thanks for the good info kmx! i'm going with the antifouler