Code 28, Help!
Thread Starter
Driver School Candidate
Joined: Nov 2005
Posts: 42
Likes: 0
From: Virginia
Code 28, Help!
I have made extensive research on this one from the forum. Code 28 is the "real main O2 sensor". What made me confuzed is:
Half of the reply said it's real one of the two o2 sensors on the manifold, the other half of the reply said it's the o2 sensor on the cat.
Some serious help really needed!
Thanks
Half of the reply said it's real one of the two o2 sensors on the manifold, the other half of the reply said it's the o2 sensor on the cat.
Some serious help really needed!
Thanks
Lead Lap
Joined: May 2006
Posts: 542
Likes: 0
From: Aledo
I just looked at my lexus tech info and it has a hint for D.T.C. 21/28. "if diag . code 21 is output, replace the front side main oxygen sensor. If diag. code 28 is output, replace the rear side main oxygen sensor." Hope this helps.
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dbullen
LS - 1st and 2nd Gen (1990-2000)
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Aug 9, 2010 02:15 PM
