Thread: RT3 4.6 ltr modular hotrod engine o2 sensors?
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Old 02-21-2023, 06:01 AM
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The ECM part number usually identifies the vehicle and you get sensors for whatever it is. Do you have a number on it?
Some 97-08 Ford V8s do use different sensors up and downstream. Ups do ratio and downs monitor cat performance.
If you have 4 sensors you probably do need them hooked up.
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Last edited by sunman; 02-21-2023 at 06:11 AM..
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