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Misfire - Lamda high or low ?

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Old 20 January 2003, 12:17 PM
  #1  
Andy.F
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Question

If my spark was breaking down at high boost, how would this be shown by my lamda link ?

Would it

1 - read rich due to unburned fuel ? or .............
2 - read weak due to the excess free O2 in the exhaust

The wideband did not flinch but the narrow band flickered weak in time with the misfire ?
Old 20 January 2003, 02:05 PM
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dowser
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On a car with the plugs breaking down I didn't seen any change with the stock narrowband - it was misfiring during spool-up.

Richard
Old 20 January 2003, 04:20 PM
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Pavlo
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Andy,

I'm now leaning towards a mystery fuel cut as per my email.

Will sort some options in addition to the fuelling.
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