1999 Honda Accord/EGR VALVE

[bassjam]

My check engine soon light came on. I took it to Auto Zone to have the codes check. They said it was the egr valve. The code was something like PO4071. My brother-in-law is a mechanic and he said it was the egr also. I bought one and put it on, but it did not fix the problem. Can someone help me with this? My engine is a V-6. I did have the codes erased, but it only lasted a few miles before the light came back on.

Thanks,

James

[Glen_T]

I recall that Honda had a TSB on the V6 because of plugged EGR ports. It was a cleaning procedure as I recall..

I don't know where to find it exactly, but the number is 99-085. You might search for it on-line....hope this helps..Glen

[mpumas]

The EGR code comes on because the ECU is telling the EGR to open, but is not getting a signal back from the EGR that it is opening. So, if not the EGR valve, it could be a vacuum hose, the EGR solenoid or the constant air regulator or the plug that connects to the EGR. There is a sequence of tests to follow to narrow the problem . Clogged ports would cause you to fail the NOX test.

[bassjam]

Thanks guys for the great info. As soon as I get it fixed I will let you know what it was.

James

[blacknight]

I just replaced the EGR valve last night on my 2K accord 4cyl.
Very simple to do.
Just make sure you erase the stored CEL code before you start the car.

[bassjam]

Thanks guys for all your help. It was clogged up with carbon. I took it to the Honda place and they took the egr off and cleaned out the port hole. I think they may have done some kind of upgrade also. Seems to be working fine. The cost was $146.00. Thanks again,

James