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albinski albinski is offline
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Join Date: Nov 2012
Location: Bydgoszcz, Poland
Posts: 152
lambda system freeking out in a 930

hi fellows Pelicans.
lambda system is freaking out in my 86 930. it is a US version - 930/68, with lambda circuit controlling mixture/emission.

car runs great without lambda sensor connected. once it is hooked up, however, AFR goes down to ~10 or even below.

once sensor is disconnected, it goes back to whatever is set using mixture screw.
below two videos showing how it behaves.

https://youtu.be/dVhl5wPgZIg
https://youtu.be/yJJd4x7ESO8

lambda sensor has already been replaced with new unit.

anyone any ideas?

thanks!
Krzysztof
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VW 1200 Sparkafer 1973
VW T2b Westfalia 1979
Porsche 930 Turbo US, 1986
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Porsche 911S 1976 - gone
Old 07-02-2017, 02:24 PM
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