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In Reply to: engine surge posted by Shelby on March 31, 2000 at 22:00:47:
: I have a 325es with a Jim C chip, free flow exhaust, and K&N intake kit. When I'm driving at a sustained throttle input of about 20% in lower gears (like around town) the engine surges a little (maybe 300 rpm or so). I was wondering if this was a by product of the chip programing, or perhaps something I could fix?
Check the fuel system -- pumps and relays.
Steve
'87 325iS