p040 even with new egr

[Ldub]

Had the same thing happen after replacing mine.

Played dumb when I went back to auto zone, had them read the code & they said I needed a new egr.

Had them get a new one from the shelf, & when they started ringing it up, i said "a hunnerd & HOW many dollars?...um NO, that'll be NO CHARGE"

I then presented them with my receipt, & they reluctantly agreed.

I changed out the parts in their parking lot....

But yeah, you should always scrub out as much carbon from the port & tube as possible, with carb cleaner & a good stiff wire brush.

[Y33TREKker]

Are codes read and automatically reset the same in the OBD system of a VX similarly to earlier OBD systems? My car is OBD-l, and I'll get occasional CEL's if driving conditions (and subsequently - engine sensor readings) change dramatically between the last time I drove and now. (for instance, the temperature drops 30 or 40 degrees).

When that happens, it usually takes a few times of shutting the car off, starting it, and driving it to let the ECU know that driving conditions are remaining constant and that the different sensor readings are not a fault of the sensors themselves.

Maybe your CEL will go off on it's own if you drive your VX a few times and the ECU starts to recognize the new EGR readings as the new norm?

[zadam123]

im sorry my bad

the code is really p0401

which is still the egr valve