I recently installed an AEM intake on my TL-S... well, I got a check engine light.

The code is 0443: Purge Valve C Fault

Anybody have ANY IDEA why that CEL is coming on? I know 100's of people have this intake, even on the new Type-S, without problems. I would love to fix this myself, since I'm sure the dealer won't be any help.

Thanks guys

Matt

 

this is on an 07? same thing happened to me . AFTER i moved the sensor from the T/B to the pipe... Just disconnect the negative side of the battery for a full 5 mins then try it

 

Yeah... I'll try that. I guess I just need to go over EVERYTHING very carefully again, and then do a hard reset.

 

The CEL should go away with a day of driving, or about 4-5 cycles. Just make sure the sensor is connected securely, with no leaks around it.

 

Did this get resolved? Getting ready to install my AEM CAI on my 07 TLS. Feed back plz.

 

I didn't have time last night to screw with it, but I drove my car to work and will look at it later...

 

Same thing happened to me...

I installed mine this weekend and didn't have a CEL until after I moved the sensor. I did the battery disconnect for 10 minutes and the CEL went away.

It's at the dealership right now getting the suspension TSB taken care of - we'll see how that goes...

 

Moved what sensor? Which sensor is causing my problem?

 

The IAT sensor. Did you move the sensor from the upper manifold/throttle body area to the intake pipe?

I didn't move mine at first and had no check engine light. I decided to move it a couple of days later and that's when I got the CEL. The sensor is the one that was referred to as the "Optional Power Adder" in section 4 of the AEM Intake installation instructions.

 

Yeah, I left that in the stock location, and just plugged that hole the "power adder" connected to.

 

Then I don't know what caused your CEL. Did you get a diagnostic message through your Navi?

 

Yep... listed above.

 

Got it... didn't know if you pulled the code from the diag screen or with a diagnostic computer/chip. Sorry I can't be of more help. One a side note - when we installed my UR pulley I threw five or six diagnostic messages; that was back in May and my car is still running fine. I have no idea how to clear those navi based messages. I've tried but no success. Maybe someone else can throw us a bone?????

Good luck.

 

Well, I tried clearing the code using a diagnostic reader, too...

It would clear... but then come back after about 2 minutes driving...

 

P0443 Evaporative Emission Control System Purge Control Valve Circuit Malfunction

u have a leak in your evap system. ie...one of the hoses has a leakage that expels burnt gas and other waste fumes which are spit out of the exhaust. the evap system can detect a pin needle size hole in the hoses.

 

the sensor that you are suppose to move to the cai, what's the difference from moving it or leaving it in the stock position?

 

So did you ever disconnect the battery? That solved my CEL when I installed the CAI.

 

Huge diff .. It senses cooler air when relocated Thus adjusting ...It is better offf relocated