Porsche 911 The Porsche 911 (and all it's trimlines) is a famous, distinctive and durable car has undergone continuous development since its arrival in 1964. The 911 was developed as a more powerful, larger, more comfortable replacement for the Porsche 356.

Vaguy1969

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Old 04-01-2019, 11:01 AM
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The check engine light is on in my 1999 996. After scanning I found all 4 O2 scanners had low voltage readings. Is there a fused voltage source for the heaters that is common to all four sensors?
 

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