Do I need o2 sensors?
#1
Do I need o2 sensors?
I'm getting p1171, p1174, p1412, and p1415 on a 2003 Discovery that's new to me, but that had the head gaskets replaced along with new plugs and wires about 10,000 miles ago or so when it was owned by my brother.
Do I need new o2 sensors up front? What should I check?
Do I need new o2 sensors up front? What should I check?
#4
Since the codes you have are for BOTH left/right and not just one side, I would not think that the O2 sensors are bad.
I don't have SAI in my truck, so I don't have a lot of experience there. If I recall correctly, SAI only runs for a little while right after the truck is started. (I think?)
Usually with codes like these, people suggest looking for vacuum leaks since that is a much cheaper route than replacing the MAF. Do you have an Ultra Gauge or something that would display your gas mileage? If you do have a vacuum leak your MPGs can drop noticeably. But the best way to find a vacuum leak is to listen for a hiss or do smoke test.
You'll probably want to get some opinions from people with more experience in the SAI area, but I've dealt with vacuum leaks and failing O2 sensors in my truck.
I don't have SAI in my truck, so I don't have a lot of experience there. If I recall correctly, SAI only runs for a little while right after the truck is started. (I think?)
Usually with codes like these, people suggest looking for vacuum leaks since that is a much cheaper route than replacing the MAF. Do you have an Ultra Gauge or something that would display your gas mileage? If you do have a vacuum leak your MPGs can drop noticeably. But the best way to find a vacuum leak is to listen for a hiss or do smoke test.
You'll probably want to get some opinions from people with more experience in the SAI area, but I've dealt with vacuum leaks and failing O2 sensors in my truck.
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11-01-2010 01:01 PM