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The target lambda on this vehicle is slightly lower than 1.0 indicating that the PCM is attempting ...
Views: 412
Filesize: 220.52kB
Date: May 30, 2017
 The post-catalytic converter oxygen sensor should display very little activity if the catalytic ...
Views: 439
Filesize: 243.8kB
Date: May 30, 2017
 Negative reading oxygen sensor voltage can be caused by several problems.
Views: 397
Filesize: 83.13kB
Date: May 30, 2017
 An injector imbalance can cause a lean or a rich misfire.
Views: 357
Filesize: 102.55kB
Date: May 30, 2017
An ignition- or mixture-related misfire can cause hash on the oxygen sensor waveform.
Views: 360
Filesize: 93.19kB
Date: May 30, 2017
 Severe hash is almost always caused by cylinder misfire conditions.
Views: 334
Filesize: 106.5kB
Date: May 30, 2017
 Moderate hash may or may not be significant for diagnosis.
Views: 365
Filesize: 71.83kB
Date: May 30, 2017
 Significant hash can be caused by faults in one or more cylinders, whereas amplified hash is not ...
Views: 346
Filesize: 72.27kB
Date: May 30, 2017
Normal oxygen sensor frequency is from about one to five times per second.
Views: 373
Filesize: 115.85kB
Date: May 30, 2017
 When the O2S voltage rises above 450 mV, the PCM starts to control the fuel mixture based on ...
Views: 419
Filesize: 51.81kB
Date: May 30, 2017
 When the propane is shut off, the oxygen sensor should read below 200 mV.
Views: 319
Filesize: 58.06kB
Date: May 30, 2017
 Adding propane to the air inlet of an engine operating in closed loop with a working oxygen sensor ...
Views: 402
Filesize: 58.55kB
Date: May 30, 2017
When the air–fuel mixture rapidly changes such as during a rapid acceleration, look for a rapid ...
Views: 422
Filesize: 161.54kB
Date: May 30, 2017
 Using the cursors on the oscilloscope, the high- and low-oxygen sensor values can be displayed on ...
Views: 419
Filesize: 30.66kB
Date: May 30, 2017
 A typical good oxygen sensor waveform as displayed on a digital storage oscilloscope. Look for ...
Views: 398
Filesize: 86.3kB
Date: May 30, 2017
 The waveform of a good oxygen sensor as displayed on a digital storage oscilloscope (DSO). Note ...
Views: 497
Filesize: 65.28kB
Date: May 30, 2017
Connecting a handheld digital storage oscilloscope to an oxygen sensor signal wire. The use of the ...
Views: 383
Filesize: 136.76kB
Date: May 30, 2017
 Using a digital multimeter to test an oxygen sensor using the MIN/MAX record function of the meter.
Views: 443
Filesize: 310.48kB
Date: May 30, 2017
 Testing an oxygen sensor using a DMM set on DC volts. With the engine operating in closed loop, ...
Views: 396
Filesize: 112kB
Date: May 30, 2017
 The OBD-II catalytic converter monitor compares the signals of the upstream and downstream oxygen ...
Views: 361
Filesize: 99.24kB
Date: May 30, 2017
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