LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400
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MAF, clean or replace?

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Old 10-14-20, 10:05 AM
  #16  
Sin1UZFE
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Originally Posted by YODAONE
It is different which explains my reason for suggesting it.

The Celsior emissions system is not as complex as the LS400, nor does it appear to employ a charcoal canister.


There are fewer parts (hopefully not discontinued) that might be configured.

While this changes the emissions function, Toyota elected to discontinue a critical emission component at exactly the time when many are just beginning to fail.

So what is the solution?
Used charcoal canister haven't worked. If I go the celsior route will there still be a code? My car passes emission regardless just drive to set monitors and clear cel. Passes lol.
Old 10-14-20, 10:23 AM
  #17  
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Originally Posted by Sin1UZFE
Used charcoal canister haven't worked. If I go the celsior route will there still be a code? My car passes emission regardless just drive to set monitors and clear cel. Passes lol.
Perhaps Yamae can recommend a component that spares the trouble code from triggering in the first place. A resistor perhaps?
Old 10-14-20, 11:12 AM
  #18  
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Originally Posted by YODAONE
Perhaps Yamae can recommend a component that spares the trouble code from triggering in the first place. A resistor perhaps?
I would definitely appreciate that
Old 10-14-20, 11:59 AM
  #19  
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Originally Posted by Sin1UZFE
I would definitely appreciate that
Located Celsior UCF21 info....


Charcoal cannister is 77740

Celsior UCF21 vacuum diagram




Celsior UCF21 charcoal canister appears to be available.
Old 10-14-20, 12:02 PM
  #20  
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Originally Posted by Sin1UZFE
I would definitely appreciate that
Located Celsior UCF21 info....


Charcoal cannister is 77740

Celsior UCF21 vacuum diagram




Celsior UCF21 charcoal canister appears to be available.

Old 10-14-20, 01:35 PM
  #21  
Sin1UZFE
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Originally Posted by YODAONE
Located Celsior UCF21 info....


Charcoal cannister is 77740

Celsior UCF21 vacuum diagram




Celsior UCF21 charcoal canister appears to be available.
AWESOME! also seems to be over 50% cheaper
Old 10-14-20, 06:31 PM
  #22  
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Originally Posted by Sin1UZFE
AWESOME! also seems to be over 50% cheaper
The charcoal canister depicted is for pre-1998 LS400.., but is shown in parts diagram for 1998-2000 Toyota Celsior (be glad you do not have a 2000 LS400- charcoal canister mounted in trunk and offered one model year)

Why I made suggestion to check Celsior.

It is unclear whether the earlier LS400 chacoal cannister uses a solenoid valve with a connector similar to the 1998-1999 LS400.

Compare the fuel tube diagrams 1995 -1997 vs 1998-1999 LS400.

Unsure if it can be made plug and play.

Anyone with images of 1995-1997 LS400 Chacoal Canister?
Old 10-14-20, 07:10 PM
  #23  
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Originally Posted by YODAONE
The charcoal canister depicted is for pre-1998 LS400.., but is shown in parts diagram for 1998-2000 Toyota Celsior (be glad you do not have a 2000 LS400- charcoal canister mounted in trunk and offered one model year)

Why I made suggestion to check Celsior.

It is unclear whether the earlier LS400 chacoal cannister uses a solenoid valve with a connector similar to the 1998-1999 LS400.

Compare the fuel tube diagrams 1995 -1997 vs 1998-1999 LS400.

Unsure if it can be made plug and play.

Anyone with images of 1995-1997 LS400 Chacoal Canister?
I put in 77740 50050 and it shows compatible for my ls. But then again it said the same thing of 77740 50082 lol
Old 10-14-20, 07:26 PM
  #24  
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Originally Posted by Sin1UZFE
I put in 77740 50050 and it shows compatible for my ls. But then again it said the same thing of 77740 50082 lol

How about this image..NO charcoal canister.

Never trust compatibility reports.

Obtain VIN of donor vehicle and have dealer run your VIN to insure correct component.

What the heck can fail inside a charcoal canister besides the activated charcoal?

Can these things be cut open and activated charcoal replaced?
Old 10-14-20, 07:27 PM
  #25  
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Originally Posted by YODAONE

How about this image..NO charcoal canister.

Never trust compatibility reports.

Obtain VIN of donor vehicle and have dealer run your VIN to insure correct component.

What the heck can fail inside a charcoal canister besides the activated charcoal?

Can these things be cut open and activated charcoal replaced?
Don't know if it can be replaced but I'd rather have no canister. But the issue of cel remains
Old 10-25-20, 10:42 PM
  #26  
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Originally Posted by YODAONE
Perhaps Yamae can recommend a component that spares the trouble code from triggering in the first place. A resistor perhaps?
Yamae

Any suggestions? Possible?

Im pondering a charcoal canister delete

Last edited by Sin1UZFE; 10-26-20 at 09:26 AM.
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