1992 LS400 Smog failed. Please help.
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1992 LS400 Smog failed. Please help.
HC at 1500 measure 141, Max allowed 71 (Failed), at 2500 measure 28 Max allowed 54 (Passed)
CO at 1500 Measure 1.50, Max allowed .68 (Failed), at 2500 Measure 0.00 Max allowed .38 (Passed)
NO at 1500 Measure 0 , Max allowed 524 (Passed), At 2500 Measure 825 Max allowed 687 (Failed)
So basically failed HC and CO at 1500 but passed on 2500 AND passed NO at 1500 but failed on 2500.
Please help
CO at 1500 Measure 1.50, Max allowed .68 (Failed), at 2500 Measure 0.00 Max allowed .38 (Passed)
NO at 1500 Measure 0 , Max allowed 524 (Passed), At 2500 Measure 825 Max allowed 687 (Failed)
So basically failed HC and CO at 1500 but passed on 2500 AND passed NO at 1500 but failed on 2500.
Please help
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RA40, I will clean the EGR but you are sure this is not related to Cats ? I can even do the tune up. Just wanted to make sure this is not cats related. I can't afford Cat's.
Thanks for your help.
Last edited by zafar11; 04-17-12 at 11:57 AM.
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I will give it a shot, I will go ahead and clean the EGR and while I'm at it I can do the tune up as well.
Will keep you guys posted.
Thanks
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I will change the PCV for sure, but the bulb for check engine light is out so I first I need to replace the bulb and then look for the codes.
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% of O2 at 1500 is 0.0 and at 2500 it is at 1.2
Any suggestion ?
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So the cats are good then ?. I let the car idle for 30 minutes before took it for the test.
Any suggestion ?
#13
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If your MIL is not working, I'm surprised the guy didn't fail you for it. Check to see if you got any codes, it will help the diagnosising process.
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