Starting is very easy and idle speed is good when parking and air conditioning (AC) off.
Problem:
1. When air conditioning ON or A/T shift in gear to drive, idle speed would drop, engine run rough ...
A 94 Acura Legend has [D4] flash, speedometer needle fluctiate, and code 4 was registered... I have checked the crank sensors and CYL sensors they each have 730 ohm (in spec), also checked wires and ...
