Trouble Passing Inspection Test
#1
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Join Date: Sep 2008
Location: Texas
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Trouble Passing Inspection Test
I am having trouble passing my State Emmissions Test. What do you recommend I do to pass the test?
I have also heard of people having problems with the oxygen sensor. Will replacing that part help at all?
I have a 1991 Lexus LS400
I have also heard of people having problems with the oxygen sensor. Will replacing that part help at all?
I have a 1991 Lexus LS400
#2
I would do a search regarding other people with the same problem.
Also, check here:
https://www.clublexus.com/forums/sho...d.php?t=377171
This seems to be doing a lot of good for many early 1UZ owners
Also, check here:
https://www.clublexus.com/forums/sho...d.php?t=377171
This seems to be doing a lot of good for many early 1UZ owners
#4
I'd start with plugs, wires and a good top end cleaner (seafoam) as well as replacing the coolant temperature sensor.
If that doesn't work go to the o2's, cats and EGR system.
Do you have symptoms of bad fuel economy, lost power?
If that doesn't work go to the o2's, cats and EGR system.
Do you have symptoms of bad fuel economy, lost power?
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