Just put in a cold air intake on my 2009 v6 accord coupe. I installed it and it ran all day with no issues. The next morning the check engine light came on. I reset the ecu and then the light went off then when the car cooled off the light comes back on... Any ideas?

 

re-install oem air box.

 

1. Get the trouble code and post it. Depending on where you live, most Autozones, etc. will read the code for free.

2. It probably is due to an issue with the MAF sensor (e.g., dirty, etc.) and/or a air leak in the intake system. You may have a trouble code like P0171.

 

 

Alright i will. I cleaned the maf sensor and all.. Even when the light come on it still drives like normal. Idk if its a lean code. But i ll get the code pulled

 

is there a "home" way to get the codes? i remember in my 97 CL you could stick a paper clip into this plug, and flip the key and count the flashes or something like that... i just encountered this same problem on a friends 2010 accord V6... was fine yesterday, but today he says CEL is on...

also, how did you reset the ecu? thanks

 

Not sure on the '10 but yes there are "home" methods to get codes....however with modern cars the actual codes are needed as they will give a better idea of the circuit/system that needs to be tested.

 

unfortunately i figured that, i remember with the CL it was a matter of counting flashes and then looking online to see what codes meant what...

in my case, the way the intake pipe is situated, the MAF is actually sitting upside down... this may be a stupid question, but would this be a leading cause as to why the CEL is lit up ?

 

If you don't want to/can't get the actual code........put the OE set up back on the car and go for a few drive cycles - a week or so - and see if the CEL goes out? We really can't help much more than that with the information given.

 

just got it pulled and its a p0172 p0175 to rich... so now what?

 

^
we got the same two codes as well (which i coulda figured was coming)... but whats the solution on how to clear it... ?

 

I guess get a tune of go back to oem airbox... I want to know what program to use to tune the 2008-2009 accord coupe v6. I dont see anything from hondata