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Joe, ASE Certified Technician
Category: Chrysler
Satisfied Customers: 7121
Experience:  ASE, electronics, Marine inboards and electronics, automotive drivability, all around repair tech,
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Codes PO457, PO455, PO456. PO463 my name is ***** *****

Customer Question

Codes PO457, PO455, PO456. PO463 my name is ***** ***** Looks like I may need a new fuel pump but not sure if issue is in primary or secondary pump
JA: Thanks. Can you give me any more details about your issue?
Customer: 06 Chryler Pacifica limited Just wont pass inspection and those are the codes that are generated Well emissions test wont pass I will say The code Gascap and engine light are on I have replaced gas cap and intake valve but didn't fix issue
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Submitted: 6 months ago.
Category: Chrysler
Expert:  Joe replied 6 months ago.


Thank you for allowing me to assist you, my name is Joe and I will be happy to assist you with your concern today.

You have 4 codes, 3 are likely related but not the 4th.... but it's possible. The one is pointing towards a faulty fuel level sensor which usually (with testing first) requires replacement of the sending unit and sometimes pump. The other 3 are emission related and will cause a inspection failure (I am a prior NYS emission inspector), one is a large leak such as large leak in system or gas cap off/issue such can also happen if you fill tank with engine running, the other is small leak, the other is general for a leak in the system, sadly unless these are seen easily it will require an smoke test with a special machine to find the source(s) of the evap leak in the system. Possibly even a stuck purge valve but again it will take trained professional diagnosis to find the leak.

Thank you!
- Joe

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