April 23, 20205 yr I have a 91 Loyale whose check engine light has been on and off for years, it has been on pretty much constant for the last 6 months and I need to smog it. My mechanic can find nothing wrong. Any suggestions or advice.
April 23, 20205 yr Get a new mechanic? If it's on, either codes are stored in which case, we need to know what they are to help, or the ECU is crapped out turning it on, or you have a wiring short keeping it on.
April 24, 20205 yr read the codes on the LED under the steering column. You have to remove the plastic panel to see it, through a hole in the ECU.
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