hi all, Vag-Com is telling me that my 2000 4.2 is misfiring in cylinder 7 i am getting these 2 trouble codes
P0307 - misfire cylinder 7
P1411 - Secondary air injection system bank flow too lean

i have changed the coil pack for cylinder 7 and changed all the spark plugs because a week ago i was just getting the p0307 error
so now i have 2 codes coming up, any ideas on what the problem might be with cylinder 7? i was thinking it could be the coil pack wire harness, but i dont want to run out and buy it before asking here first.
thanks

 

Might be injection problem. Can you see the engine missfire, does it shake?
Also you might check your plug wires with multimeter.

 

P1411 is the most common culprit

secondary air injection (AIR) system, bank 2 - insufficient flow detected,

possible causes are intake leak, hose(s) blocked/leaking, AI valve/solenoid bad.

P0307 just means a misfire on cylinder 7 which is probably caused by the above

 

the car will only shake on startup for a few seconds after it has been sitting for hours like overnight. i will grab a multimeter to check the wires, thanks guys for the input