ConnClark, thanks for the comprehensive (not to say
exhaustive
) write up. The main reason I decided to go ahead with the EGR cooler is because later versions of my engine have it, so it is a no-fuss direct swap. Yes, I take into account that the newer engine's ECU compensates for cooled EGR and may keep the valve open for a shorter time. I'll see if I notice a difference in fuel economy and in power. If something goes wrong I can still tweek the EGR valve to open less.
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is
where you're going, not
how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread