Originally Posted by
wulliegunn
Yep. You're tryin to cut corners with an engine,designed with really tight tolerances. Im in same predicament with my gearbox synchros,but am spending a painful £1k to let ford do it,& get proper OEM parts. Dont like doing it, but i know i'll get another 100k out of this box,maybe more. Ive done the EGR blanking before,& about 4months later regretted it as it was only masking the real problem. Found that along with remapping & not havin upgraded icooler,there was bore-wash etc,& the engine was running at silly temps. Is your car remapped by the way?
Erm, blanking the EGR does not cause bore wash.
EGR systems by their very nature recirculate shitty exhaust gasses back into the inlet manifold. Great when brand new for cutting emmisions but give it a few years and your egr valve, inlet manifold and inlet ports begin to block up with horrible deposits which causes a restriction, underperformance from teh engine and running problems.
To cure these problems you need to clean out the inlet system and blank the EGR off. This is then preventative for the future.
Simple.