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The mkiv Supra Owners Club

MOT emissions


TrickTT

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Following on from this thread: http://www.mkivsupra.net/vbb/showthread.php?t=98198

According to the computer at the MOT place ALL MK IV SUPRA's need at least 1 cat in to pass the MOT now.

Any model, any age from chassis number 0000001 onwards. It seems that at some point recently, vosa/dvla have updated their computers and you now need a CO2 reading below 0.2 to pass.

Previously '93 and '94 imports could pass with a CO2 reading below 3.5

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how easy it is to swap the front cat back in? is it a job for the garage or is it one you can change yourself without much hassle? I have the front cat and access to a service pit and an MOT in April...

 

Swapping the 1st cat in is a PITA, the 2nd cat is easy and can be done on your driveway if you have some decent jacks and stands.

 

Have a word with our local MOT guy if only the MOT is a concern ;) :D

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:D Its now passed :D

Figure with one cat in were:

Fast idle CO : 0.15% (max 0.2%)

HC : 21ppm (max 200ppm)

Lambda: 1.01 (0.97 - 1.03)

Big thanks to Big Num and Burna for loaning me and delivering a spare cat. Also thanks to Pete, Chris Wilson and everyone else who offered their help. :grouphug:

 

 

Ripped the thing out 5 mins after i got back from the MOT centre though, god its unresponsive with a cat in:p

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:ecstatic: :ecstatic: :ecstatic: :ecstatic: :ecstatic: :ecstatic:

PASSED

Need to take the cat off and get the Decat back on NOW` I Feel Dirty!

 

 

 

Emissions test is based different category depending on age of car, and not if its j-spec or uk spec, there all the same .

so based on being 1993 it was tested as if it should have a cat on.

 

 

RESULTS :

 

FAST IDLE maximum C0 0.20% vol Actual 0.05% vol

NATURAL IDLE maximum C0 0.30% vol Actual 0.19% vol

/vbb/images/smilies/bbcode_grin.gif

 

 

oh and needed a new number plates as the Spacing was wrong.

 

ta

jamie

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