My 1988 oldsmobile cutlass calais 3.0 V6 has a code 13. How do you test for an open circuit in the oxygen circuit?
Aug 24, 2011 at 5:48 PM
test oxygen circuit
KUDOS101
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- 1 POST
It's not necessarily an open circuit. It's just reading below 500mv for too long. That could also mean a severe lean mixture. You will have to use a DVOM to measure voltage right at the sensor but it would make more sense to just replace the sensor and clear to code to see if you still have a problem.
Aug 24, 2011 at 6:44 PM
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