Quote:
Originally Posted by Spikehorn11  Thats what I plan on putting on in a few days.
I had the code come in for EGR excessive flow so I replaced the EGR Valve assuming it was sticking open. Now after all that it comes in insufficient flow. |
a good test to see if the egr valve has insufficient flow is to start the engine, remove the vacuum line on top of the egr valve, go get a spare vacuum line and create your own vacuum with your mouth. if the valve is working you should be able to stall the engine. if you can't stall the engine replace the egr valve if you can then you ether have a bad evr, dpfe or a wiring problem. if it shows excessive flow you should see a decrease in power, rough idle and poor fuel economy. but most likely it is the dpfe because they are the weakest link of the egr system
