Egr Valve Honda Fit Hybrid

[AMI0755]

I had a fault in my car, and found out that it is caused by the EGR Valve,

1 - what is EGR Valve

2 - what does it do,

3 - what is the impact of running with faulty EGR Valve

The fuel consumption of the car became low and the car jerks at time when i accelerate slowly at very low RPM

[Rumesh88]

1. EGR is Exhaust Gas Re-circulation. You might as well googled it.

2. EGR valve recirculate a portion of exhaust gases back into the cylinders under ECU control (there were old vacuum operated ones too). ECU determine the opening and closing of the valve based on the load. At peak load and at idle the EGR is kept closed. Its primary purpose is to meet the strict emission standards on oxides of nitrogen (NOx). When you inject exhaust gases back into the cylinder it replaces a portion of the combustible material with a relatively inert gas thus bringing the overall combustion temperature down thus reducing NOx emissions. Also at light loads the engine run a bit more efficiently as the mixture is pre-heated.

3. Rough idle and loss of power at high load if the valve is stuck open. If it is stuck shut you will get rough engine and less pulling power on light loads.

Edited October 16, 2014 by Rumesh88

[Mahasen Okanda]

@AMI0755

your fit got a problem with egr valve or egr system? what is the error code you got?

i think your fit's egr valve is control electronically by ecu, maybe the egr valve was clogged by carbon deposits or it malfunctioned

[jaga]

If the culprit is valve, You may clean it and try. If problem exists, You have to change the valve. It s bit expensive. I got my one changed at the agent(FD1) and cost me 25000 Rs. about a year a go.