Does anyone know what could cause the SES light to come on a few days after a flash? One of my friends thinks it is bc of the mechanical o2 fix I have. Should I change it out to the perrin cel fix. The car is not bogging or anything. This is the best the car has ever ran.

Let me know what you guys think.

 

go to auto zone, loan out their obd2 and pull the code and that answers all your questions.

you drop a deposit on the tool and when you bring it back, you get your money back.

if you use a credit card, and bring the tool back that day, it never even credits the money off your account.

 

This is the kind of question that pops up every so often that I find a little funny..

There are almost 500 possible codes that can turn up when that light goes on. Althoug many of us probably could suggest what it "Could" be.. Its always going to be easier to retrieve that code.. You have to retrieve the code yourself to know for sure what it is..

Once you have that information, you can then say, I have "Pxxxx" code, the snapshot data says it occured at xxx rpm, at yyy throttle position, etc.. Now your likely going to get a very descriptive answer in half the time.

 

thanks guys...I am got the codes pulled.
It shows p0401 egr valve has insufficent flow.

 

Sorry...Where is it at?

 

search on here. I had that code and a very tiny vac line to the rear of the EGR popped off after running the car hard. I cant remember specifics but you can find it on the site

 

Thats unusual.. The EGR solenoid and valve are behind/under the intake manifold.. Every so often the lines can pop off, also check the connector to the MDP sensor, Solenoid, and the valve.

Was anything adjusted back there recently or did you disconnect/cut any vacuum lines to run anything new recently?

What I would do is clear the code, and see if it comes back if nothing's changed..

 

hose popped off...feel around the back, zip tie it and keep moving.

 

Thats true, you did recently get tuned and the line isn't secured very well back there.

 

well I found the hose that fell off....for anyone else that has this problem, the hose is located on the bottom ot the throttle body on the fire wall side...

thanks a lot guys for the help...

 

good stuff...

...zip tie it!

 

good I may have finnally helped someone lol