help, Revs going wild up and down

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So where's that harness so i can track it down...

And was that EGR or ERG? I think i know what tha egr valve is and does but not sure of an ERG?

RE: EGR - For all of the mechanically modificatin kind in here....

I had a prelude that had and egr tube that basically ran from the headers to the intake manifold . Its "purpose" - to help heat/warm up the engine. Well as we all know hot air is bad air And since it does get or stay too cold here in bright orlando, fl. - I had a little plate fabricated to block off where it went into the intake manifold and had where the tube came out of the headers welded shut. No more (unneccesary) hot air in my intake.

I though it made a difference, but then again i was young and niave , anyone think this be something benificial to undertake?

Just letting out the creative juices, now everyone please jump on the "just my $.02 wagon".....x