P3 gauge code ??

[Maxf80M3]

My p3 gauge just put out a code 274A ???
What does this mean ??

[Maxf80M3]

Excuse the spelling , driving and posting

[Patrón]

did you get any codes or check engine lights anywhere on the dash etc... or just on the p3?

[Maxf80M3]

Originally Posted by Patrón

did you get any codes or check engine lights anywhere on the dash etc... or just on the p3?

Just on my p3 gauge . No check engine light

[BPMSport]

Potentially faulty pre cat oxygen sensor bank one.

If the light hasn't illuminated yet, it hasn't seen the error occur enough times.

[Maxf80M3]

Thanks : ) I'll look into it...

[Patrón]

Originally Posted by Maxe93

Just on my p3 gauge . No check engine light

The reason I ask is sometimes i'll get a code on my p3 but no where else. if i unplug the p3, no codes or engine lights will illuminate etc..I think the p3 is sensative and displays 'shadow codes' that i've heard about but not too familiar with.

Originally Posted by Mike Benvo

Potentially faulty pre cat oxygen sensor bank one.

If the light hasn't illuminated yet, it hasn't seen the error occur enough times.

could it be that it detected a measure slightly out of the ranges and stored the code? I have a cam sensor error that has come up once on the p3 and never again anywhere else once cleared.

[Maxf80M3]

Originally Posted by Patrón

The reason I ask is sometimes i'll get a code on my p3 but no where else. if i unplug the p3, no codes or engine lights will illuminate etc..I think the p3 is sensative and displays 'shadow codes' that i've heard about but not too familiar with.

could it be that it detected a measure slightly out of the ranges and stored the code? I have a cam sensor error that has come up once on the p3 and never again anywhere else once cleared.

It appeared once last year when it got cold , never again that year. I?m running test pipes no cats and its getting cold outside in Canada. Once again the code came up ,,,,,, I think I?m going to drive it longer . Apparently they are 300cad each Bosch sensor. Are there any alternatives ? Anyone have experience with them ?

[BPMSport]

Originally Posted by Patrón

The reason I ask is sometimes i'll get a code on my p3 but no where else. if i unplug the p3, no codes or engine lights will illuminate etc..I think the p3 is sensative and displays 'shadow codes' that i've heard about but not too familiar with.

could it be that it detected a measure slightly out of the ranges and stored the code? I have a cam sensor error that has come up once on the p3 and never again anywhere else once cleared.

Correct, the P3 will read Bmw specific codes and will show faults triggered before SES light illumination as the Generic OBDII specification calls for a certain amount of errors to occur in X drive cycles before setting a permanent fault.