IS250 oxygen sensor problem
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Lexus Champion
Joined: Feb 2001
Posts: 3,124
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From: Texas
IS250 oxygen sensor problem
A ladyfriend of mine has an 07 IS250 that has had the check engine light on for some time. The dealer diagnostic says oxygen sensor, bank 1, sensor 1.
I checked another dealer parts and the desk was a bit unsure of the part
I presume it is driver side pre-cat. Parts dept quoted $177.19 for part number 8946530730.
A diagram for the IS350 seems to show the front sensors have the harness plug in the engine bay while the rears pass through the floor making rears a trickier install. Front SHOULD be easier.
My experience tells me not to have 100% faith in the diagnostic results.
Anyone else have an O2 failure?
I will buy the OEM part vs. aftermarket but do not want to buy the wrong one only to have to return/exhange it if wrong and definitely if there is possibly something else triggering the check engine light.
Comments suggestions from anyone with experience is definitely appreciated.
Thanks guys.
I checked another dealer parts and the desk was a bit unsure of the part
I presume it is driver side pre-cat. Parts dept quoted $177.19 for part number 8946530730.
A diagram for the IS350 seems to show the front sensors have the harness plug in the engine bay while the rears pass through the floor making rears a trickier install. Front SHOULD be easier.
My experience tells me not to have 100% faith in the diagnostic results.
Anyone else have an O2 failure?
I will buy the OEM part vs. aftermarket but do not want to buy the wrong one only to have to return/exhange it if wrong and definitely if there is possibly something else triggering the check engine light.
Comments suggestions from anyone with experience is definitely appreciated.
Thanks guys.
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