How to Use Volvo PTT Check Engine Fuel Pressure for Volvo FM4 Truck

This is a instruction show you guide on how to use Volvo Tech Tool diagnostic software do to fuel pressure monitor for Volvo FM4 truck.

Procedures:

Run Volvo Tech Tool software on your PC,then input user ID to login (offline)

Select “Test”–>”23-Fuel system”–>”Fuel pressure”

Then click “Start” button

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It show you warning message,select “I have read and understand the above advisory”

And click “Continue”

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There are two options:

A:Present the sensors values in a graph

Perform the test in the workshop(stationary) or during a test drive(two persons required)

B:Read and present the pressure with the oscilloscope

Perform the Heavy Duty Scanner in the workshop (stationary) or during a test drive(two persons required)

Select “A” and click ”Continue”

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To monitor the fuel pressure in various conditions for example during a test drive;either the oscilloscope test in this operation or a manual pressure gauge must be used.Manual fuel pressure test instructions can be found by selecting the symptom Low power in the diagnose tab.

Action:

Read out the status of the operating conditions:

1.Engine not running

2.Run the engine at 600rpm

3.Check the engine fuel pressure

4.Run the engine at 1200rpm

5.Check the engine fuel pressure

6.Engine running

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Now here you can record the fuel pressure

After then select “OK”,and click “Continue” exit Volvo fuel pressure monitor.

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