1.8 2H engine exhaust systems
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#1495983
(In Topic #198792)
Old Timer
Thanks in advance
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Local Hero
1988 Mk1 Golf GTi Cabriolet 1.8cc DX, K-jet. Daily drive. 317,000 miles and counting
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
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Website Manager
Vehicle exhaust emission standards - GOV.UK
Cars do not have to have a catalytic convertor fitted to pass the MOT test, however they must pass the CO and HC emission checks. From 1/8/95 lambda checks were introduced and must be measured and be within the defined limits. There is a huge Annex of engines in the above doc for engines between 1/8/92 and 1/8/95 where stricter emissions and control tests are required like the post 1/8/95 cars. A good example of this is the DX engine fitted to 1993 Cabby Sportlines is subject to 4.5% CO and 1200ppm where as your 2H engine is subject to harsher checks if it was registered after 1/8/92.
Lambda control was introduced to reduce emissions and also to stop the engine going over lean or over rich and damaging the CAT.
1/8/75 to 1/8/86 requires 4.5% CO and 1200ppm HC
1/8/85 to 1/8/92 requires 4.5% CO and 1200ppm HC
1/8/92 to 1/8/95 requires 4.5% CO and 1200ppm HC unless your engine is in the Annex at the back of the document above. The 2H engine is and requires 0.5% CO and 200ppm HC and a Lambda check.
A well controlled engine will easily pass even the 2H settings, for example my 230bhp 16V Supercharged engine in my MK1 just passed its MOT with 0.07% CO and 12ppm HC running an Emerald ECU and wideband lambda control !!
I hope that helps you decide :-)
Posted
Local Hero
1988 Mk1 Golf GTi Cabriolet 1.8cc DX, K-jet. Daily drive. 317,000 miles and counting
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
Posted
Website Manager
Posted
Website Manager
1.8 2H engine exhaust systems
Posted
Old Timer
Posted
Old Timer
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