I have a 93 model Patrol.
It has a 4.2 liter fuel injected engine.
I have been reading other forums about blocking the E.G.R. valve and they all seem to indicate that it applies to diesel engines only.
Is this correct?
If not, where can I find the E.G.R valve on my engine? is there any benefit to blocking the E.G.R. valve on a petrol engine?

Thanks.

Neil.