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CarDoc, Independent European Shop owner
Category: Car
Satisfied Customers: 6457
Experience:  20 years of experience working with European cars. Independent European shop owner and technician.
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P1273 diagnostic code definition?

Resolved Question:

p1273 diagnostic code definition?
Submitted: 8 years ago.
Category: Car
Expert:  namzyanzyy replied 8 years ago.
Could you please mention your car make and model no.?
Customer: replied 8 years ago.
2005 inginity G35 2-door w/3.5 V-6. car had oil change and tune-up, light came on following day. now knocks on start up and smells like fuel and idles rough. ck engine light sometimes goes out then comes back. that code was active when tried to get inspection sticker
Expert:  CarDoc replied 8 years ago.

It's a code for the bank 1 A/F sensor. It looks like, but doesn't work exactly like an oxygen sensor. Basically senses the air/fuel ratio in the exhaust stream, although this is dumbing down the process quite a bit. It's quite likely that the sensor is faulty, but it would be best to check for intake/vacuum leaks first.

CarDoc, Independent European Shop owner
Category: Car
Satisfied Customers: 6457
Experience: 20 years of experience working with European cars. Independent European shop owner and technician.
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