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so this code is had a lot of meaning - Faulty Oxygen Air/Fuel Sensor Bank 1 Sensor 1- Oxygen Air/Fuel Sensor Bank 1 Sensor 1 harness is open or shorted- Oxygen Air/Fuel Sensor Bank 1 Sensor 1 circuit poor electrical connection- Faulty EFI Relay- Faulty Injector- Faulty Engine Control Module (ECM)
what brand o2 sensor did u replace with
that the best one I usually put bosch , denso , or import direct last choice , but I have not heard of ultra power sensor .
yeah o2 sensor sometime is very sensitive with a lot aftermarket one is sometime hard to tell if it good . best way is check the connector for 12 voltage reference voltage if it there then ecm is good .
yes the connector to the sensor . check voltage there with key on engine off is ok .
yes either two silver or two gold terminal .
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if not 12v then we need to check ecm signal I have to go find diagram let me know tomorrow what u find
how the condition of the battery did you check the battery see how much reading you got
if your getting 9 v that kinda low . can u ohm the sensor and tell me how much you getting
u reading OL when you ohms the sensor
We have seen this problem many times, what we see is a vacuum leak causing this issue. The following test should be done.
Check for abnormal fuel trims. Check to see if the fuel trim readings are abnormally high. If the fuel trim readings are high, check for a vacuum leak at the intake manifold or brake booster. An intake manifold leak (which can be intermittent) and the brake booster will cause high fuel trims at idle but will lower as the engine is revved up.
Yes you want to make sure the right part is in the vehicle, it has been my experience when it comes to sensors and electronic parts it is best to use dealer parts only. I can not tell you how many bad parts or out of spec parts we get right out of the box. A lot of these parts are made in China and just don't work.
You can use either method, both work the same.