O2 sensor question / ecu voltage

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Sep 5, 2004 | 10:52 AM

Simon C

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From: At the diesel pump...

O2 sensor question / ecu voltage

The O2 sensor produces a waveform, which can be read at the jack in the engine bay. Question is should you see the same waveform at the signal pin on the ecu or a constant voltage?

Sep 5, 2004 | 12:28 PM

tweenierob

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From: Fcon Power Writer

waveform at the ecu.

Rob

Sep 5, 2004 | 01:06 PM

Simon C

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From: At the diesel pump...

Cheers Rob, my old O2 was shot, she was reading a constant 0.7 at the ecu.

Last edited by Simon C; Sep 5, 2004 at 04:12 PM.

Sep 5, 2004 | 11:30 PM

Roojai

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From: Taunton

Simon, how are you measuring it. Do you use a normal voltmeter? Do you open up the ECU and make contact with the pin, or read it off the wire or what???

Sep 6, 2004 | 04:59 PM

Simon C

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From: At the diesel pump...

I use a standard DVM on the connector block. The probe then contacts the connector.

Sep 6, 2004 | 05:16 PM

ozzy

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From: Scotland, UK

Are you checking ground on the sensor too or are you using the engine block?

Stefan

Sep 6, 2004 | 05:21 PM

Simon C

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From: At the diesel pump...

the chassis

O2 sensor question / ecu voltage

O2 sensor question / ecu voltage

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