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Ask Juan Crespo Your Own Question
Juan Crespo
Juan Crespo, Tech Trainer
Category: Honda
Satisfied Customers: 1526
Experience:  A.S.E. Master Technician, Advanced Level, Emissions - Asian, Domestic, & European
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Helll! Where is the A/F fuel sensor on Honda accord 2008 ex

Customer Question

Helll! Where is the A/F fuel sensor on Honda accord 2008 ex sedan? I have a P0135 and P0498 error codes... Replaced the upper stream sensor which is by the exhaust manifold with after market sensor...Please help.
JA: Are you certain it's the fuel pressure sensor that's in need of attention? What about the fuel rail? Have you checked it yet?
Customer: Fuel rail?...
JA: Are you fixing your Accord yourself? What have you tried so far?
Customer: I'm trying...so far i replaced the Upper stream oxygen sensor.,,that's it.
JA: Anything else you want the mechanic to know before I connect you?
Customer: Check engine light on...with P0135 and P0498 codes...Thanks
Submitted: 11 months ago.
Category: Honda
Customer: replied 11 months ago.
See attached files...that's why I had to replaced it..
Expert:  Juan Crespo replied 11 months ago.

Hi there.

Most of the times, a short on the A/F sensor wiring results in a blown FI SUB fuse in under-the-hood fuse box (see attached graphic). Start by checking that fuse and then we can take it from there if need be.

Best Regards.

Expert:  Juan Crespo replied 11 months ago.

In case you were wondering, P0498 can also be caused by that same FI SUB fuse being blown.

Please let me know what you find.

Best Regards.

Customer: replied 11 months ago.
Will definitely do... Thank you!
Expert:  Juan Crespo replied 11 months ago.

Looking forward to hearing from you.

Best Regards.