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Targa / Catalytic Convertor Help Needed


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New on this site.  Short intro - bought a beat up 993 Targa 3 years ago whilst living in Dubai.  Spent some money on it including a bare metal respray then Company transferred me to Singapore but couldn't take the car with me so exported it back to the UK as I couldn't sell it.  


Car has failed its MOT on emmissions - no surprise but trying to find out exactly what it is fitted with.  The car went straight from the factory to the Middle East and has the following options:-


Rest of the world car

M6422-63T Engine

C32 - Arab states

M150 - leaded



Can anybody shed any light on what the above codes mean in terms of a catalytic convertor, lambda sensing etc, especially C32 and M150 codes.


Thinking to fit a sports cat to it.


Some pics added for interest.





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Welcome to RennTech :welcome:


Biggest issues I see is the "M150"  and "C32" codes, which means the car is designed for use with leaded fuels in the Gulf states (which had no emissions requirements).  This option meant that the cat canister's under the cars were empty (no catalytic cores), the cars had no 02 sensor system, and use a unique OBD system to control fuel trims due the lack of O2 sensors.  The UK has been mandatory lead free gas since 2000, and I understand uses the same OBD II "I/M Readiness" test that North America uses, which requires both cats and o2 sensors (although the RoW cars with cats of that vintage only had two O2 sensors rather than the more common four in NA).


I would think it is going to take quite a bit of work to get the car accepted by the UK MOT system.  The DME will need to be reflashed to use O2 sensors (which would need to be installed) as well as unleaded fuel, and the car will need real cats, all of which is going to be expensive.

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