That could well be true if it was a California model since those use the ECU end for grounding the coax shield. But yours is a 49-state model, according to the 15+ different inline 4 Digifant wiring diagrams I checked before replying. And yes, the 92 Cabriolet non-Cali diagram matches your wiring description for the O2 and almost nothing else does but 90 and 91/92 Cabriolet non-Cali. Even the single wire O2 VWs ground the coax shield, but at the ECU end of the harness. Cabriolet non-Cali 90, 91, 92 models do it at the engine side of the wiring. Mark Don Hanson wrote: > Well lots of confusion and I certainly appreciate all the answers..... I > called the guys at Van Cafe and asked them, since they sell a lot of the > single wire O2 sensors..They ran out to the shop and asked their > mechanic...he says people only need the signal wire...everything else that > was connected for a 4 or 3 wire sensor is superfluous once you swap to the > single wire one............... > > |
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