Rpms surge and no check engine light
#1
Rpms surge and no check engine light
I have a 98 honda civic ex w/ 161000 miles. Been driving the car for about 2 weeks now. I have no check engine light. But when I put it in park or neutral the tachometer jumps up and down up to 3000rpm. Also when I'm driving it seems everything is always revving hard/loud/rough. When I come to a stop in drive the car wants to keep going and the tac is at 1500-1700. Figured it might be a thermostat issue from what I've read on here. But my operating temp is right on. And I have heat so maybe not the thermostat. Any help would be appreciated. Not an expert at all. Thank you!
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