
Flow Meter User Guide
FLOW METER
Flow Meter Testing
14
INTERPRETING YOUR FLOW METER RESULTS
The results from the flow meter tests indicate what maintenance needs to be
performed on the air pump. Refer to the following table to evaluate the test results. If
the flow meter reading is equal to or lower than the dirty air pump reading, follow the
steps outlined in the action required column of the table. Pump head rebuild kits (P/N
79190003) are available from Dynojet. Refer to the Air Fuel Ratio Module Installation
Guide (P/N 98295110) for rebuild instructions.
Note: Before replacing the pump head service cover be sure to perform any
necessary maintenance procedures.
test point
new or rebuilt
pump dirty pump action required
test point one 35 25 or less rebuild pump heads
test point two 28 25 or less clean or replace filter
test point two—filter
assembly
less than 2 greater than 2 clean and tighten filter
housing
test point three 28 25 or less rebuild pump heads
test point three—sensor
block assembly
less than 2 greater than 2 clean and tighten sensor
test point four 30 25 or less rebuild pump heads
test point five 30 25 or less rebuild pump heads
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