Failed smog.... '93
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My '93 LS with 212k failed smog the other day. What do you guys think the problem is?
HC 15mph - 223 (Max allowed 80)
25mph - 209 (Max allowed 45)
CO % 15mph - 3.16 (Max allowed .46)
25mph - 3.25 (Max allowed .43)
I'm guessing either Cats, O2 Sensors, or plugs?
HC 15mph - 223 (Max allowed 80)
25mph - 209 (Max allowed 45)
CO % 15mph - 3.16 (Max allowed .46)
25mph - 3.25 (Max allowed .43)
I'm guessing either Cats, O2 Sensors, or plugs?
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You are dumping fuel , so something is not burning properly
Either an injector is stuck open
a plug is not firing , possible coil or wire
the cats only clean , they may have problems but it is not causing them .
Either an injector is stuck open
a plug is not firing , possible coil or wire
the cats only clean , they may have problems but it is not causing them .
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I don't know if this will help I always take my lexus on the open road for about a 15 mile run then drop into the smog test place I have always passed. Several guys from the smog only told me to do this to help the car pass I was also told it helps to change your oil just before you do a smog test this one I can't say for sure if it will help. The lexus is a great built car the only repair I have done in 203,000 miles put seals in the power steering $ 25.00 and lower ball joints $190.00.
Last edited by Bill Dowd; 05-06-08 at 07:09 PM.
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Can you post the other gas measurments? Seeing what the other gasses are doing can help with the diagnosis.
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