Also was just wondering, is there a reasonable way to set the ECU/MAP settings without the exhaust analyzer? I've in the past changed the ECU setting when it seemed way off by idle/vacuum and by looking at the plugs.
Actually, I'm also wondering if the lumpy idle is possibly a result of incorrect valve clearances. How do the valve clearances influence idle, anyway?
Thanks for educating me. This forum is really great!
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