Can someone clarify the slight confusion I have?
Am I right in thinking that certain fault codes are not unique to specific components of the engine? i.e fault code Pxxxx does not necessarily mean that component xyz is faulty.
And can different code readers/diagnostic devices list different narratives for the same fault code? i.e. fault code Pxxxx could list a narrative such as “Timing Fault” on one device, but another device could list “Sensor malfunction” for the same fault code?
I ask because my engine is giving out fault code P1105 and P0370.
The garage said that P1105 which lists “Barometric Pressure Sensor Wrong Signal” is not too much to worry about…
Whereas P0370 lists “Pump Position Sensor Incorrect Signal” which points to a fault within the diesel fuel pump…which is a big job/big concern say the garage. The garage is staffed by ex-vauxhall mechanics btw, and they read my codes with a code reader connected the socket by the gearstick.
Members on here have told me fault code P0370 carries the description “P0370: Timing Reference High Resolution Signal A”…which points to timing belts?
So which is it? Does P0370 equate to ‘Timing Belts’, or does P0370 equate to ‘Pump Sensors’?
2 totally different parts of the engine, surely? I am confused.
Any help would be gratefully accepted.
p.s. my actually car runs fine. I still get 45 mpg urban, and there are no problems with starting or accelerating hot or cold, thank god.