o2 sensor voltage ecu
#11
So, I just did some testing today. I checked the voltage at the ECU with a test probes. I am getting .44 volts on 2 of the wires and 12 volts on the other wire. So I know there is a signal getting to that point. I have a feeling something is wrong with the ECU. I am going to swap o2's again and get a new one to double check. If that doesn't work, I guess I am on the hunt for a ECU/BCU combo, as I am not going to the dealer. I here you need one that is compatible with SAI. Is this correct?
#13
Do I really have to have a new cluster? I've read it is ECU/BCU digital "handshake" between the two that is the issue. If you are swapping from the 4.6, or vise versa, I saw that the cluster is needed.
#14
#15
BTW. Did you test voltage at the ecu with the vehicle running? After 10-20 minutes of idling the voltage on one of those half volt wires should have been fluctuating, if only a little. If that's not the case then you have a bad sensor not an ecu.
It sounds like you just tested with the key on which doesnt really tell you anything definitive. Warm it up and do the same test again
It sounds like you just tested with the key on which doesnt really tell you anything definitive. Warm it up and do the same test again
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vjm530
General Range Rover Discussion - Archived
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07-07-2008 08:19 PM