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Joined: 30 Dec 2015
Posts: 10
Location: South Yorkshire

PostPosted: Thu May 11, 2017 4:33 pm    Post subject: Engine management light. Cayman S Gen 1. Reply with quote

Every few thousand miles I get an engine management light. I can't remember the specific fault code (I've been scratching my head all afternoon) but it was related to the emissions being lean/weak signal on bank 2. The light goes off by itself after a switching the car on and off a few times.

I'm suspecting the lambda sensor but what complicates matters is the fact that I've had the secondary catalystic converters removed.

Would removing the secondary cats cause the light or is it irrelevant?

As the car has had a recent MOT and the light is very intermittent I'm not concerned about the cats been knackered.
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Long Beach

Joined: 21 Mar 2015
Posts: 6178
Location: Brighton

PostPosted: Thu May 11, 2017 6:53 pm    Post subject: Reply with quote

Need a little more info on the fault code im afraid , was it pre or post lambda sensor ?

Did it mention ageing ?

Could be an exhaust leak causeing a weaker reading on one side .. could be an air leak if its pre cat etc etc .....

And yes it might depending on the fault code although ive not come across it with decats on these before .

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Joined: 25 Apr 2015
Posts: 552
Location: East Midlands

PostPosted: Fri May 12, 2017 10:37 am    Post subject: Reply with quote

I had the lean error code intermittently (2195 /2197 I think) last week on my 997.

In my case the intake hose to the throttle body wasn't fitted properly after a service.

Worth a quick check on all hoses, oil and fuel caps etc being loose as a slight air leak will trigger the code. I refitted mine and no problem since.
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