Dynojet Air Fuel Ratio Module - Manual (Page 6)

Air Fuel Ratio Module Installation and User Guide
C H A P T E R 1
Introduction
1-2
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INTRODUCTION
The Air Fuel Ratio Module is designed to accurately sample air fuel ratios from
engines burning petroleum based fuels. Be sure to read and follow all warnings found
throughout this manual.
Note: The Air Pump Assembly has a one year warranty.
W ARNINGS
The sensor and the copper sample tube are hot. Before touching the sensor or
the sample tube, make sure it has cooled.
Leaded racing fuels and two-stroke applications will contaminate the sensor
and dramatically shorten its service life.
The sensor is not covered by a warranty. Be sure to read and understand the Air
Fuel Ratio Module Installation and User manual.
Running the pump with the filter clogged, hose kinked, or filter removed will
damage the pump and void the warranty.
Before turning the pump on, verify there is no water in the filter bowl. Always
empty the bowl before turning the pump on.
Do not allow the filter bowl to fill with water during operation.
Warm up the vehicle before placing the copper sample tube in the exhaust to
avoid drawing excess water through the pump assembly.
Keep the air pump assembly upright. Tipping the pump assembly may result in
damage to the sensor.
Leaks in the system will result in erroneous readings. Verify there are no cracks
or holes in the hoses and filter bowl. Verify the sensor is seated properly in the
sensor block.
To ensure accurate readings, pump head maintenance should be performed
every six months, or sooner, depending on usage. Refer to “Pump Head
Maintenance” on page 2-12 for more information.