SENSORED - NTK Vehicle Electronics

Sensored!

With the growing demand for today’s vehicles to be more economical and environmentally-friendly while retaining performance, it is becoming more and more vital to fit the right sensors.

NTK lambda sensors are the No.1 choice of vehicle manufacturers (VMs) providing exactly the right sensor for every vehicle application.

They give:
Improved engine efficiency
Reduced emissions
Increased economy

The experience NGK has in supplying the VMs worldwide allows them to offer exactly the right sensor for every vehicle application with 986 part numbers giving 76 percent coverage of European vehicles.

NTK is also a leading supplier of other engine management
sensors including:

NTK Camshaft and Crankshaft Sensors – comprising more than 200 UK-specific part numbers with excellent UK vehicle parc coverage.

NTK MAF & MAP Sensors - A range of 87 NTK Mass Air Flow (MAF) sensors and 69 Manifold Absolute Pressure (MAP) sensors.

NTK Exhaust Gas Temperature Sensors – with 38 part numbers covering 33 million cars.

Technical Tips for NTK Lambda Sensors:

Lambda sensor positioning in the exhaust system has many descriptions throughout the automotive industry, which can differ from that read on fault diagnosis equipment. For ‘sensor 1’ it is also known as regulating, front, upstream, pre-cat or upper.
For ‘sensor 2’ they can be referred to by some as diagnostic, rear, downstream, post-cat or lower.

To aid factor selection and correct supply first time, a fault code relating to ‘sensor 1’ and ‘sensor 2’ are commonly referred to on the factors’ parts look-up systems as ‘front’ and ‘rear’ respectively. Referring to them as such can avoid delay and ensure correct
supply first time.

When recorded fault codes relate to the Lambda sensor heater control, suspect the entire circuit. To eliminate the sensor; check there is a resistance reading between the two Lambda sensor heater wires (most commonplace between many sensor manufacturers are the two white wires). No continuity confirms the element is broken. Ensure any reading is aligned within the VM’s tolerance.

Sometimes a fault code can be read that correctly relates to an issue with the Lambda sensor and replacing it can cure the issue. However, upon the removal of the sensor, closely inspect the inside of the connector for any oil contamination – however slight.
On some vehicle models it is known for an engine oil leak to allow oil to enter the wiring loom. This can then migrate to other areas of the loom via capillary action.

Sometimes fault codes are recorded for Lambda ‘sensor 2’ (rear). Garages sometimes say the sensor they need has more wires than the one supplied. NOx sensors always have more wires than a Lambda sensor and outwardly are very similar in appearance,
the Lambda sensor will be close by!

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