erg fuel consumption

[ChrisPerna]

so i have a cel and it comes up egr system, could that make my mpg be horrible? also what is a common fix for that code? all the vacuum lines are good so thats not it, any other ideas?

[zelix]

so i have a cel and it comes up egr system, could that make my mpg be horrible? also what is a common fix for that code? all the vacuum lines are good so thats not it, any other ideas?

egr function? would also like to know then

[5523Pathfinder]

A EGR system failure might hurt your Mpgs. If its stuck open a bit, this may cause a lack of power. The EGR system should only work when at "cruise". Typical failures are usually leaks. In the system, right next to the EGR valve, is the BPT valve. There is a small rubber hose under it that will rot out. Also, you can manually check the EGR valve by pressing up on the diaphram, while its running, and it should slightly stall. Do a quick inspection and see what you find.

[ChrisPerna]

i have done that test and it is not open at all, i am going crazy because im not liking these 8 mpgs.

Edited September 2, 2010 by ChrisPerna

[silverton]

less skinny pedal.

[Kingman]

The EGR valve will have very little effect on fuel mileage.

[Precise1]

I'm thinking O2 sensor, MAF wiring or Engine temp sensor, but you need to get that code cleared before you want to check again...

 

B

[5523Pathfinder]

The EGR valve will have very little effect on fuel mileage.

Wrong. If if stuck open, even a little bit, it will change the air/fuel mixture quite a bit. The O2 sensor will detect too much oxygen, and richen the mixture, causing poor fuel mileage.