CEL: Always on, can't pull codes - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 2 Old 05-14-2011, 12:14 PM Thread Starter
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CEL: Always on, can't pull codes

'93 Mustang LX 2.3L

My CEL (check engine light) comes on and stays on. I have tried with a code reader, which starts self-test (i.e., starts fan, clicks relay) and then stops. After about 10 seconds, it just shuts off. I tried jumping the test port to count the flashes and nothing.

Any ideas?


Jay - '93 LX 4-Banger w/A4LD but wanting to covert to 2.3L TC with T-5
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post #2 of 2 Old 05-16-2011, 07:15 PM Thread Starter
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Update: I re-secured an ignition coil, disconnected the battery overnight and then tried. The arrow on my reader came on but after 1 min or so nothing. It occurred to me that I didn't warm up the car first. After warming it up, I tried again and no arrow and the reader just shut off after about 30 seconds - just like before.


Jay - '93 LX 4-Banger w/A4LD but wanting to covert to 2.3L TC with T-5
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