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No-Start 740 B230F, Regina System

posted by  Heyu on  Tue Mar 14 10:56 CST 2023
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After having replaced a new bad aftermarket crankshaft position sensor just 3 weeks ago with a new Volvo CPS I am once again experiencing a no-start condition. The car wouldn't restart after it had been running for about 10 minutes and had reached normal operating temperature. The car would crank but not fire. The fuel pump relay was operating correctly as was the one in-tank fuel pump. There was spark at a removed plug and fuel pressure on the fuel rail but no fuel in the cylinders. Another good used CPS was installed as was the ignition control module with a new Volvo ICM. The car still wouldn't start. After more than 5 hours of sitting the car wouldn't start and was towed home.

After sitting overnight a start was attempted and the engine fired immediately and ran properly. It was run-up to normal operating temperature and then shut off. After a few minutes of sitting a start was attempted with the same results as the day before - a no-start condition. Any thoughts/suggestions? Thanks.






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