Acura Integra Engine Extended Crank Time - Engine Builder Magazine

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Acura Integra Engine Extended Crank Time

Engine Builder
By Engine Builder

PROBABLE CAUSE

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The fuel pump check valve or the pressure regulator allows the residual fuel pressure to drop.

SOLUTION

Note: Check the residual fuel pressure before checking for other possible causes.

1. Relieve the fuel pressure as described in the service manual, then connect a fuel pressure gauge at the fuel filler.

2. Start the engine and run it for several seconds until the fuel pressure stabilizes.

3. Turn the engine off. The fuel pressure should stay at 30-35 psi forthe first five minutes andshould drop no more than 10 psi in the first 10 minutes. If the fuel pressure drops too fast, go to step 4. If the fuel pressure remains stable, consult the service manual for other engine or ignition-related causes of the symptom.

4. Restart the engine, then turn it off and lightly pinch the return hose from the pressure regulator. If the fuel pressure remains stable, replace the pressure regulator with the new part listed under

PARTS INFORMATION

If the fuel pressure still drops too last, replace the fuel pump.

Fuel Pump: p/n 16700-PG7-663

Pressure Regulator: p/n 16740-PG7-663

Some or all of this information was provided by the Automotive
Parts Remanufacturers Association (APRA). For more information on
technical bulletins available through APRA call 703-968-2772 or visit www.AutoBulletins.com.

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