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    91 nsx have rough idle

    Ok thanks for the help! Update I changed the idle air control valve and also the eacv and cleaned out the throttle body and idle screw passage. It doesn’t surge on idle anymore as much but when I put it on gear the rpm drops really low. It’s automatic transmission and it only does it on drive...
  2. A

    91 nsx have rough idle

    Hello. I have a 91 nsx Jdm. Every time I start it the rpm fluctuates and the drops to almost stalling. I’ve changed 02 sensors, spark plugs, ignition coils. It doesn’t seem to have a vacuum leak. Any advice would be helpful
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