micky2k37
11-01-2010, 12:12 AM
My 2002 1.8t engine management light came on a month or so ago with the code P0411, Secondary Air Injection System Incorrect Flow, the car never drove any different and after a read up about the secondary air system found out that its not exactly a major fault and doesnt effect the car to much so this wasnt at the top of my "to fix list"
The last few days I realised the car felt different to drive and sounded abit rough, I opened the bonnet and could hear a hissing noise and noticed a pipe that goes into the inlet manifold was split, popped in the fault reader and came up with P0171, System to lean, bank 1.
Fixed this pipe no problem and wiped both error codes.
now i was wondering can these two be related, looking at a diagram of the engine below, you can see the pipe coming from the inlet into "number 23 recirculating valve for turbo" which would cause my P0171, now "23" also has a pipe coming from that into "21 secondary air injection solenios valve"
so.. could that one split pipe cause both faults?
http://i22.photobucket.com/albums/b311/muckdawg19/vacuum_diagram_amb_motor.jpg
The last few days I realised the car felt different to drive and sounded abit rough, I opened the bonnet and could hear a hissing noise and noticed a pipe that goes into the inlet manifold was split, popped in the fault reader and came up with P0171, System to lean, bank 1.
Fixed this pipe no problem and wiped both error codes.
now i was wondering can these two be related, looking at a diagram of the engine below, you can see the pipe coming from the inlet into "number 23 recirculating valve for turbo" which would cause my P0171, now "23" also has a pipe coming from that into "21 secondary air injection solenios valve"
so.. could that one split pipe cause both faults?
http://i22.photobucket.com/albums/b311/muckdawg19/vacuum_diagram_amb_motor.jpg