I have an 04 MDX and i have been researching throughout the site for solutions. My MDX turned on the CHECK ENGINE LIGHT AND THEN THE VTM-4 LIGHT comes on as well. It happened 2 days ago and its still on. I have read different scenarios but has anyone gotten both lights at the same time. the lights do not blink they stay from the minute i started up to the minute i shut it down.

is this something major i should be worried about? should i be driving the truck? what can happen if i keep driving it this way? please help your input is greatly appreaciated.

 

This could possibly be the EGR valve or you may need a valve adjustment. How is the car running?

 

I think the owners' manu. suggests to take it to the dealer, isn't that so ?

IMO that's something you don't want to mess with ....

 

take it to a dealer asap to get it checked out

 

It's better to be safe than sorry.

 

the vtm4 light might be for the fluid but make sure you have them check everything out

keep us updated

 

You can also take it to a automotive store and have them read the codes for ya so you know what it is before you take it into the dealer.

 

I actually did decide to take it to my local autozone so they can read me the code and this is what i got



Code : P0325

It reads

BB Knock sensor (KS) circuit malfunction

BB1 - open or short circuit condition
BB2 - poor electrical connection
BB3 - faulty knock sensor

Definition:

BBknock sensor condtion - THe powertrain control module monitors the knock sensor signal for errors

BB1- knock sensor defective
BB2 - Check connector and wiring to sensor
BB3 - Engone mechanical condition knowck or rattle in engine
BB4 - Low fuel pressure


Please let me know any info guys if possible. Bought this truck roughly a month ago. I also noticed i am only getting 14mpg which is definitile too low. I will try to clean the intake and EGR ports how the previous thread stated. I will also be changing the spark plugs and all filters let me know if there anything else i should change or clean. I only get roughly 175miles on a full tank. If i could get 200 + i will be a happy camper.

thanks again

 

Might want to change your knock sensor while you're at it

 

FIftyfive....would any one know where is located?