Vauxhall Zafira 2010 petrol 1.6 - MOT fail on lambda reading. engine light also on. | Technical matters | Back Room Forum

Tue 1 Jul 2014 19:27

Vauxhall Zafira 2010 petrol 1.6 - MOT fail on lambda reading. engine light also on. - nic1503

I am a complete layperson in relation to cars. The engine light has been on for a few weeks and there hasn't been a lot of power in the car which has only be noticeable on motorway journeys in relation to acceleration. We thought the service would tell us the issue. The garage we went to didn't have the diagnostic equipment. The MOT failed on the Lambda reading (it was 1.34) but the garage say they don't know what the issue is and we have to go to vauxhall dealer to get diagnostics run to discover problem. Is this correct or should they have at least had an idea what the issue was. Does anyone have any ideas of what it may be and how it can be fixed.

Thanks for any advice

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Tue 1 Jul 2014 20:05

Vauxhall Zafira 2010 petrol 1.6 - MOT fail on lambda reading. engine light also on. - MrEckerslikefromRamsbottom

They hadn't got a code-reader? This is a 'professional' garage wot's doing the MOT, and they hadn't got a code-reader? Even I've got a code-reader in the car! They could take a 'lambda reading' (whatever that means) but they couldn't read the fault codes by plugging a code-reader into the socket under the steering wheel?

If the 'engine light' is on, the very first thing you should do before driving any further is to call out the RAC, AA, Green Flag or Britannia Rescue or whoever you're with, and the chap will come along and read the fault code(s) and advise you as to what your course of action should be!

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