O2 sensor and code 21
12-31-2005, 07:45 PM
Post: #1
O2 sensor and code 21
Can I run an engine without connecting the oxygen sensor (4agze)?

The system gives me code 21, 22 (water sensor) and 51.

Or can I simply connect the oxygen sensor without putting it in the exhaust.
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O2 sensor and code 21 - toypower - 12-31-2005 07:45 PM

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