IDLE SPEED 690 ENGINE TEMP MORE THAN 80DEG
IN PARK
AIR ON OFF IAC VALVE STEP 57
AIR CON ON STEPS GO TO 70
IDLE SPEED WITH AIR CON 750
WHEN COLD IDLE SPEED SHOULD START AT 1500 RPM
AIR MASS FREQUENCY AT IDLE :
Vehicle Symptoms – Miss firing and check engine light on.
The vehicle was driven into the workshop and the vehicle was miss firing, sure we found that when cyl 2. spark plug lead was removed from the coil the engine would not change its roughness and that by removing that coil lead from that coil that was the cylinder that was not pushing the piston from a firing event.
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