2006 CRV - "P0472 Exhaust Pressure Sensor Low"


#1

What does this mean? Something trivial like a fuel filter, or do I need to take it in to the dealer.



It came on about 10 minutes after putting in some fuel while I was on the road back home.


#2

This has nothing to do with the fuel system. ANy change in the sound of the exhaust? Is the car still under warranty?


#3

Have you added a low restriction, high flow after market tip muffler? You may have to go closer to stock to satisfy the computers demands.


#4

It is a stock LX - no modifications to the exhaust.


#5

Car is still under warranty - it has about 14000 miles. I think I will just take it to the dealer.
I hadn’t noticed any changes in the sound of the exhaust - but I will check for punctures/dents in the muffler etc. May some road debris caused some damage, but I don’t recall anything like that on the road. I was driving on an interstate at the time with the usual bits of truck tire, but didn’t run over any.


#6

P0472 is “Exhaust Pressure Sensor Low Input.” The reference is to VOLTAGE. A fuller treatment of the meaning is in the Service Manual. This is something that you don’t really want to throw parts at. www.alldata.com ($25 annual subscription) might give the full definition.


#7

If it is under warranty, why would you even consider taking it somewhere other than the dealership? Why not get free repairs, rather than having to pay for them?