Knock off Sensors can damage your engine

Recently, we've noticed some customers requesting tune updates for flex fuel kits that are not BNR brand, and those customers having inconsistent flex fuel readings in their data logs. For example, one moment the sensor is reporting 10% ethanol, and the next 50%, and the next 30%. This can lead to the ECM making very large fueling adjustments when in reality, the ethanol content never changed, and those changes could eventually lead to engine damage. It's extremely important that the flex fuel sensor you're using is a genuine continental sensor. In this article we'll go over how to identify a genuine sensor from an AliExpress knock off.

A genuine flex fuel sensor can be identified a few ways. First, they will say the brand name "Continental" on them.

Second, they will have these 2 raised squares

Notice how the knock off sensors do not say "Continental" and do not have the raised square sections, but are smooth.

It is highly advised that if you are buying a flex fuel kit from a source other than BNR that you check that it is a genuine sensor. If you do not have a genuine sensor, we strongly recommend either demanding a genuine sensor from the company that sold you the knock off, or buying the correct genuine sensor from Amazon or RockAuto.

Due to the number of people with fake sensors recently, we will be requiring all customers requesting retunes for non-BNR flex fuel kits to show us a photo of the sensor so that we can confirm it is authentic.