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How to pass CO2 emissions? Cheaply


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it had no check engine on
and no obd2 errors via Bluetooth cheap dongle

that is the problem
so, ECU was modified right?
tech inspection prior owner did in 30 September 2020
CO2 emission idle CO2 % 0.0 of max allowed <0.3
CO2 emission throttle 2000 rpm 0.0 of max allowed <0.2

so just a few months ago it was perfect

bought this lexus through shady resellers 06 Feb 2021
tested same day after 2 hours
CO2 emission idle CO2 % 0.5 of max allowed <0.3
CO2 emission throttle 2000 rpm 0.4 of max allowed <0.2

complete absence of cats therefore
inspector said there are no cats, but no cut outs are visible

shady reseller blames me that I cut out cats smile.gif on Saturday, at minus 20 C, within 2 hours

what is the cheapest way to pass emissions?

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Have a look at Youtube " how to pass an mot without cat" .

There is somebody who did it on  Saab V6 using a kit. Apparently there is a  very simple modification  that will do the trick.

Chris.

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5 hours ago, nooblex said:

what is the cheapest way to pass emissions?

If you've got an RX400h like you imply in your other post, hybrids do not need to have any emissions test at all.

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As member "Herbie" above says hybrids are exempt from the emissions test of the MOT, and cannot be failed on this. They can be failed if it is obvious that parts relating to emissions have been removed or the engine light is on or does not come on,and go out when the car is first started.

John.

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11 hours ago, Britprius said:

As member "Herbie" above says hybrids are exempt from the emissions test of the MOT, and cannot be failed on this. They can be failed if it is obvious that parts relating to emissions have been removed or the engine light is on or does not come on,and go out when the car is first started.

John.

This is true. Our MOT man said they check hybrids for missing cats. If missing it’s a fail. 

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