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raphaelkeller6

Odyssey rough running engine stalls

I own a 2018 Honda Odyssey, gasoline engine, with about 157838 kilometers. The check engine light is on, the engine runs rough, stalls sometimes at idle, and jerks when accelerating. Could it be a bad fuel pressure sensor?

Summary of the thread

A 2018 Honda Odyssey owner experienced a rough running engine, stalling, and jerking, with the check engine light on. The initial suspicion was a faulty fuel pressure sensor. Upon inspection, it was found that a corroded connector to the sensor was causing the issue. Replacing the sensor and cleaning the connector resolved the problem.

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4 comment(s)

dominikwolf27

I had a similar problem with my Odyssey, though I don't remember the exact year. Those symptoms—check engine light, rough running, stalling, and jerking—really point to a fuel delivery issue. Before you replace the sensor, have you checked the cable and plug connection to it? A loose or corroded connection can seem like the sensor failed and cause the engine to misfire.

raphaelkeller6 (community.author)

Thanks. I didn't check the cable or plug connection. Where is the fuel pressure sensor located, and how do I check the connection for corrosion or damage?

dominikwolf27

The fuel pressure sensor is usually on the fuel rail. Look at the connector for corrosion, damage, or loose pins. Also, check the wiring harness leading to the connector for breaks or chafing. But, given the symptoms and mileage, I'd suggest taking it to a good shop for a full diagnostic check. It could be a faulty fuel injector or even the fuel pump.

raphaelkeller6 (community.author)

I appreciate the advice. It was a defective fuel pressure sensor because of a corroded connector, as you suspected. Replacing the sensor and cleaning the connector fixed it. Total repair cost: 95€ Thank you again!

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HONDA

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ODYSSEY