check engine light comes on but when i shut the car off n restart it again the light stays off. mechanics telling me the light has to b on to test it (obd1), but my car has a (obd2) port under steering wheel. does the light still have to b on to get a code with a obd2 port? car must've been built late 95 n has a 96 or later hook up. obd2 don't know.
check engine light on 1995 Buick LeSabre
by RLWISE56 in Wrightsville, PA on February 05, 2010
ANSWER by Oakman , February 11, 2010
Your 1995 Buick LeSabre has an OBD I system but is equipped with and OBD II style connector. Your 1995 was manufactured during the transition time form OBDI to OBDII. Your OBDI system still has the ability to store fault codes which should stay in the memory after the light goes off. Retrieving these stored codes should help I diagnosing the cause of your check engine light coming on. If there are no stored codes when the technician checks your car then he is correct in stating the light will need to be on to check the system.