EGR Valve

[pluggers]

Dont know if my car has one or not (most likely does I just dont know what im looking for) But can someone tell me if it has and where it is please, I have been told its a possible cause for my engine making strange chugging noises when laboured in a high gear going up hills or thrashed.Its ok when driving normal tho.The sound seems to come from the front end of the car around the where the downpipes are.

 

[Richard W]

All I know is that it only causes problems when it sticks open, and that is mainly known on the VW 1.9 TDi engines....

Don't know if they're fitted to petrol engines, I thought there was a different type of emissions/warm up system on those?

 

[Dieselman]

AFAIK your car doesn't use EGR.

EGR is used as a crude method of reducing NOX. NOX is produced in quantity when the mixture is very lean so has a high oxygen content, as in a diesel at idle.

All indirect petrol engines maintain a fairly constant mixture strength so don't generate much NOX. Direct injection petrols are a whole different story!!!!!!!!!!!