have replaced EGR valve and still have a code 16, also code 24?
Aug 12, 2022 at 11:16 PM
OBD1 codes 16 and 24?
1995 MAZDA 626
HILLSIX
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16 - EGR Function Sensor the code 24 is for the airbag system. I have seen this problem before, the EGR valve passages being clogged up will cause the EGR system not to work. I would remove the EGR valve and look with a flashlight to see if the passages were clogged up. Also, you can try to start the engine and see if you can hear the exhaust. Let me know what you find.
Aug 13, 2022 at 10:28 AM
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The EGR valve was brand new out of the factory box. YouTube believes that my sensor is bad. The resistant value is low from pins A to B and high from pins A to C.
Aug 13, 2022 at 3:49 PM
Yep, that could be, here is how you can test the sensor to confirm the failure.
Images (Click to enlarge)
Aug 15, 2022 at 11:31 AM