O2 Sensor Issue

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Redcapedman

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Hi Guys,

2004 LR Disco II SE

I bought this vehicle a couple months ago with 140k miles. The Check Engine light came on shortly after indicating the O2 sensor. It was replaced and then, after 140 miles, the CE light came back on with the same code. The guy trying to fix it replaced the O2 sensor again, drove it for a while and the same error showed up. He claims it is something in the voltage. After 10 days, still no fix. Is it possible that it is a wiring issue or would it more likely be an ECM issue? How can I check?

Thanks in advance!
KP
 

joey

Custom Rover Accessories
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Welcome to the forum... Check to make sure the air box lid is on correctly and clean your MAF sensor.
 

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