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Starter Catalytic Converter on 2002 Boxster 986 - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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YOUR RESEARCHStarter Catalytic Converter on 2002 Boxster 986 - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Check car info, and it seems

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Performed · outcome unconfirmed · Original poster
I managed to get a parts manual, and checked the car info, and it seems to tell me that the engine is a M96.21 type.
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Starter Catalytic Converter on 2002 Boxster 986 - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Leading evidence: 'Check car info, and it seems' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check car info, and it seems' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Check car info, and it seems

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster
I managed to get a parts manual, and checked the car info, and it seems to tell me that the engine is a M96.21 type.
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Starter Catalytic Converter on 2002 Boxster 986 - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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POST 1 / ORIGINAL POSTEROriginal post

Hello, my first visit to the forum as a relatively new owner! I have an engine warning light for an ageing oxygen sensor pre-catalytic converter on my 2002 Boxster S. I managed to get a parts manual, and checked the car info, and it seems to tell me that the engine is a M96.21 type. However, when I look at the parts manual this engine has a starter catalytic converter. I had the car up on the jack for a peek and I can't see that mine has one. Can anyone shed any light on this? Could it have had a replacement exhaust system without starter cat, and would this even work with the missing sensors etc. associate with it? Or is it more likely my car, despite its serial number has the 96.20 engine (maybe a model crossover)? The fault code is P1275 $0011 which I believe is the oxygen sensor pre-cat, but I am trying to check if it is pre-cat or pre-starter cat..... Any hints greatly appreciated before I try do any fixing! Cheers Robert

POST 2Original post

When you looked underneath, did you see the manifolds, and if so did they look like #1 and 2? If so, then the sensor should be #26 which is 986-606-127-01. Best practice is to replace in pairs (either the pre-cat sensors or post-cat). The M96.20 is the 2.5 from the 1997-1999 models.

POST 3Original post

Quotes source post: 657901

European order Boxsters do not have pre-cats or starter catalytic converters. They just have a singe catalytic converter per bank. Pre-cat converter cars were configured for North American sales. You should still have an O2 sensor before the Catalytic Converter and an O2 sensor after the Catalytic Converter.

POST 4 / ORIGINAL POSTEROriginal post

Thank you very much, both replies really help. Novice on Porsche maintenance, more used to tractors to be honest but at least you’ve pointed me in the right direction 👍🏻. Mine is not like the diagram posted it had no starter cats.

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