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Forum: Zongshen RX3

05-15-2016, 11:16 AM

Replies: 219

Working With Diagnostic Data Cable & Software

Views: 119,986

Posted By pyoungbl

katflap, that's great information. Since our O2...

katflap, that's great information. Since our O2 sensor costs something like $130 I'm starting to wonder if it is actually wide band vs the narrow band you would expect in a budget system. Wide band...

Forum: Zongshen RX3

05-10-2016, 03:29 PM

Replies: 219

Working With Diagnostic Data Cable & Software

Views: 119,986

Posted By pyoungbl

Muzo, your analysis is interesting. In most...

Muzo, your analysis is interesting. In most cases the closed loop will be leaner than open loop. That's because the O2 sensor (Lambda sensor) is correcting the ECU to keep the mixture lean enough...

Forum: Zongshen RX3

05-08-2016, 10:04 AM

Replies: 219

Working With Diagnostic Data Cable & Software

Views: 119,986

Posted By pyoungbl

katflap, I want to thank you for the link to...

katflap, I want to thank you for the link to details about how the Delphi EFI works. That was the first time I saw any mention of open loop operation on this ECU. Every other reference only...

Forum: Zongshen RX3

05-07-2016, 08:19 PM

Replies: 219

Working With Diagnostic Data Cable & Software

Views: 119,986

Posted By pyoungbl

[QUOTE=katflap;215367]part2, (apparently wen...

[QUOTE=katflap;215367]part2,

(apparently wen an O2 sensor fails it will leave your engine running rich)

Not necessarily. When the sensor fails the engine should revert to open loop, where this...

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