SureTrack Real Fix: Correct the Reading

Real Fixes from the SureTrackĀ® expert information resource are documented issues from actual shop repair orders and community discussions. Read on to see how SureTrack can help you correct issues that are not easily diagnosed using OEM information alone. SureTrack is currently available free with the purchase of a current Snap-onĀ® diagnostic software version.

This Audi was soon back to reading the correct exhaust gas temperature in this quick fix. Using live data from a Snap-on Scan Tool was a valuable resource saving time and getting to the fix quicker.

2012 Audi A1 1.6 Diesel

14355, P242A, P242B, Replaced Exhaust Gas Temperature Sensor (B1-S3)

The customer states the check engine light is on.

Connected a scan tool and found codes: 14355 – Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3; P242A – Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 3) and P242B – Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 1 Sensor 3). With the engine at idle, viewed live scan tool data and found the exhaust gas temperature sensor (B1-S3) data was out of specifications. Removed the engine cover to gain access to the exhaust gas temperature sensor (B1-S3) connector. Disconnected the sensor, used a multi-meter to check for voltage at the connector and found voltage was present. Used a fused jumper wire to bypass the exhaust gas temperature sensor and found the scan tool data changed. These tests verified that the exhasut gas temperature sensor (B1-S3) was faulty.

Replaced the exhaust gas temperature sensor (B1-S3), cleared codes, performed a road test and verified the vehicle operated properly.

SureTrackĀ® is a powerful value-added feature available with select Snap-on diagnostics tools. It offers an exclusive combination of expert knowledge and detailed parts replacement records, all wrapped in an interactive community.

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About the Author

Nick Taylor

Nick Taylor is the SureTrack Community Administrator and a Senior Applications Specialist at Mitchell 1 with over 25 years of experience with electronic repair data systems. Nick previously worked in the automotive dismantling and engine rebuilding industries.