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FJR Motorcycle Forums
Technical & Mechanical Problems
Fuel Pressure Question
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<blockquote data-quote="Oakdave" data-source="post: 1423453" data-attributes="member: 29079"><p>To be clear, the maintenance manual does not state that the 47.0 is the <em>minimum</em> pressure (to check for). In fact, in the troubleshooting section pertaining to the error code 32, the manual states that one problem that could be the cause of the error is if there is TOO MUCH FUEL PRESSURE, so it says to check the fuel pressure.</p><p></p><p>The following text is copied directly from the maintenance manual, in the section pertaining to how to check the fuel pressure (steps a - d are omitted because those steps just pertain to how to go about connecting the fuel pressure gauge between the fuel tank output line and the rail):</p><p></p><p><em><strong>e. Start the engine.</strong></em></p><p><em><strong>f. Measure the fuel pressure.</strong></em></p><p></p><p></p><p></p><p></p><p><em><strong>Output pressure </strong></em>(result should be)</p><p><em><strong>324.0 kPa (47.0 psi) (3.24 </strong></em><em><strong>kgf/cm²)</strong></em></p><p></p><p><em><strong>Faulty → Replace the fuel pump.</strong></em></p><p></p><p>That's it. It just specifies 47.0 psi, period. (And to replace the fuel pump if the output is not 47.0 psi).</p></blockquote><p></p>
[QUOTE="Oakdave, post: 1423453, member: 29079"] To be clear, the maintenance manual does not state that the 47.0 is the [I]minimum[/I] pressure (to check for). In fact, in the troubleshooting section pertaining to the error code 32, the manual states that one problem that could be the cause of the error is if there is TOO MUCH FUEL PRESSURE, so it says to check the fuel pressure. The following text is copied directly from the maintenance manual, in the section pertaining to how to check the fuel pressure (steps a - d are omitted because those steps just pertain to how to go about connecting the fuel pressure gauge between the fuel tank output line and the rail): [I][B]e. Start the engine.[/B][/I] [I][B]f. Measure the fuel pressure.[/B][/I] [I][B]Output pressure [/B][/I](result should be) [I][B]324.0 kPa (47.0 psi) (3.24 [/B][/I][I][B]kgf/cm²)[/B][/I] [I][B]Faulty → Replace the fuel pump.[/B][/I] That's it. It just specifies 47.0 psi, period. (And to replace the fuel pump if the output is not 47.0 psi). [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Fuel Pressure Question
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