Hi guys i have an o4' MDX and the engine light comes on followed by the vtm4 light. I replaced the knock sensor and tried to reset the code but it didnt work. Initially it had indicated it had a bad knock sensor. Now it gave me code P3025.

Does any one know what that means? can it be an O2 sensor i am getting horrible gas mileage, close to 13 mpg combined.

Any help would gladly appreaciated.

 

Usually its pretty simple to look up codes online but I am having a hard time finding one. You sure its p3025?

 

sorry its Code : P0325

it also said low fuel pressure

probably the fuel pump? this is prob why im getting low mpg?

 

well you check that sub harness. they get eaten by rats. and ive never seen a fuel pump go bad.

 

Here ya go:

http://www.obd-codes.com/p0325

If it's not the sensor, because you've already replaced it, maybe the harness or wiring to it?

And what do you mean by "it also said". Did it read another code as well?

 

check the wiring to the sensor and look for some rat droppings in the engine bay. Acura used some soy based coating on the 2004+2005 cars and rodents like to chew on them.