A new automotive application article about a Kia Carens with a mixture problem is added to the Automotive section of the website.

A Kia Carens with 1.6 liter engine keeps generating an oxygen sensor related code that the fuel mixture was too rich. Resetting the error and driving the car would set the error code again. Several components were replaced, even the Electronic Control Module (ECM), but the error kept coming back. Diagnosing using a automotive labscope revealed the cause of the problem.

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A new automotive application article about a Citroën Xantia refusing to start is added to the Automotive section of the website.

A 1999 Citroën Xantia had a new starter motor fitted, after which it would not run anymore. While cranking it would fire briefly and then die. The car’s battery had been disconnected for the starter motor job. A crankshaft sensor code was logged and thus the crankshaft sensor was replaced, regardless of the good signal. Later the ECM was replaced all with no positive results. The question was if the immobilizer could have reset itself by disconnecting the battery. Proper measuring revealed what the real problem was.

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A new automotive application article about a stuttering Ford Fiesta is added to the Automotive section of the website.

When trouble shooting intermittent problems, a good automotive oscilloscope is indispensable. A Ford Fiesta with J6B engine was suffering occasional stuttering. The shop it was brought to did not have an oscilloscope, so they could not easily locate the source of the problem. They did replace some components, but the problem remained. Using an automotive diagnostic oscilloscope, the problem was soon found.

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• A problem with fast repeated function generator bursts is solved
• A problem with triggering on Generator Start is solved
• Sample frequency settings for the Handyscope HS3 5 MHz model are corrected