Code p0171 and I need to check fuel pressure.
Nov 14, 2017 at 6:51 AM
Code P0171 fuel pressure pump
2005 CHRYSLER PT CRUISER
ARELLANO
- MEMBER
- 2 POSTS
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JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,194 POSTS
Using a fuel pressure gauge, attach it to the fuel rail schrader valve. Once installed, turn the key to the run position. At that point the system will pressurize. Check to confirm the pressure is within the manufacturer's specifications.
Another thought, often times a lean fuel mixture is the result of a engine vacuum leak. Check to make sure there are no disconnected, damaged, dry rotted vacuum hoses.
Another thought, often times a lean fuel mixture is the result of a engine vacuum leak. Check to make sure there are no disconnected, damaged, dry rotted vacuum hoses.
Nov 14, 2017 at 7:17 PM
Thanks. Do you think that oxigen sensor it's bad?
Nov 17, 2017 at 2:28 PM
JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,194 POSTS
It's possible... However, that usually isn't the cause. If you have a live data scanner, you can check the function of the sensors, but if there is no code indicating a faulty O2 sensor, chances are that isn't the problem.
Nov 19, 2017 at 6:00 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.