Pulling codes
91 Aerostar 3.0
Slightly rough idle.
Cleaned the sensors and TB with TB cleaner. Some help.
Autozone says can't check codes unless the CEL stays on.
Did the analog voltmeter check of the stored codes and got
22 and 122?
22 I can't figure out and 122 in for Throttle position. I am just not sure of the codes.
QUESTION: What is the hookup called for the computer. Its not OBDII. and are codes being thrown if the CEL is not coming on?
What is a better method of getting any codes other than by watching the ambiguous sweeping of the voltmeter???
Thanks guys!



