Check for spark
check IAC valve remove clean or replace
check injector pulse
KOEO & KOER SELF-TEST Codes
PCM outputs codes one digit at a time.
Record codes in order received.
These codes indicate current faults in system and should be serviced in order of appearance.
If using VOM, pay careful attention to length of pauses in order to read codes correctly.
A 1/2-second pause occurs between number of sweeps in a digit.
A 2-second pause occurs between digits in a code.
A 4-second pause occurs between each code.
KOEO codes are separated from Continuous Memory codes by a 6-second delay, a 1/2-second sweep (separator) and another 6-second delay.
If using MIL/CHECK ENGINE light, service codes are displayed as flashes.
On Continental, message center may be used to display codes.
Scan tester, if used, will count pulses and display them as a digital code.
STAR Series Tester will add a zero (0) to single-digit Separator Code (10) and Dynamic Response Code (10). Dynamic Response Code is displayed in KOER SELF-TEST.
Single 1/2-second separator pulse is issued 6-9 seconds after last KOEO code. Continuous Memory Codes (soft faults) are then displayed 6-9 seconds after 1/2-second separator pulse. Some digital test equipment may display separator code as "10" instead of "1".
Sunday, September 19th, 2010 AT 8:30 PM