Hi,
Just bought a £27 OBD2 reader from amazon as the Check engine light kept coming on. I had a bit of a rough idle and not very good low down acceleration / poor acceleration at low revs in higher gears. When i attempted to accelerate in 6th at 70mph for example i would hear a lot of induction roar but not much progress!
I presumed it was the lambda sensors, so didnt worry, bought the reader to see which ones. It read these codes:
p0011
p0056
p0040
p0014
p0040 i learnt was because the garage had not connected the o2 bank1 sensor 1 and bank 2 sensor 2 to the right connecters, i have done it now and dont get this code.
When i drive now, symptoms are the same with poor low down acceleration but a lot of induction noise... idle is better but can still make a noise like as if it is threatening to stall.
i hope p0056 is due to bank 2 lambda sensor 2 and will change that this weekend.
But im lost as to what the other 2 codes are, as different interpretations on the internet, does anyone know what they are on the z4 specifically? And what parts or what do i need to do to get rid of them???
Interestingly the check engine light isnt coming on now, despite these codes still showing when i plug in obd2, even if i erase them and drive, they will come on again, despite no check engine light... any idea why??
Thanks, im really frustrated with this now, plus ive got a noisy aux belt pulley, thats the next job! just one thing after another...
:|
Edit to add:
When i cleared the codes and went for a drive, once under heavy acceleration the engine cut out and wouldnt respond to the throttle, it just kept the revs going up and down yo-yo style from 750-1250 rpm. I turned engine off, restarted and it would drive then, albeit with the symptoms described above. No engine check light however, depite it showing on along with the EML light when it happened
Just bought a £27 OBD2 reader from amazon as the Check engine light kept coming on. I had a bit of a rough idle and not very good low down acceleration / poor acceleration at low revs in higher gears. When i attempted to accelerate in 6th at 70mph for example i would hear a lot of induction roar but not much progress!
I presumed it was the lambda sensors, so didnt worry, bought the reader to see which ones. It read these codes:
p0011
p0056
p0040
p0014
p0040 i learnt was because the garage had not connected the o2 bank1 sensor 1 and bank 2 sensor 2 to the right connecters, i have done it now and dont get this code.
When i drive now, symptoms are the same with poor low down acceleration but a lot of induction noise... idle is better but can still make a noise like as if it is threatening to stall.
i hope p0056 is due to bank 2 lambda sensor 2 and will change that this weekend.
But im lost as to what the other 2 codes are, as different interpretations on the internet, does anyone know what they are on the z4 specifically? And what parts or what do i need to do to get rid of them???
Interestingly the check engine light isnt coming on now, despite these codes still showing when i plug in obd2, even if i erase them and drive, they will come on again, despite no check engine light... any idea why??
Thanks, im really frustrated with this now, plus ive got a noisy aux belt pulley, thats the next job! just one thing after another...
:|
Edit to add:
When i cleared the codes and went for a drive, once under heavy acceleration the engine cut out and wouldnt respond to the throttle, it just kept the revs going up and down yo-yo style from 750-1250 rpm. I turned engine off, restarted and it would drive then, albeit with the symptoms described above. No engine check light however, depite it showing on along with the EML light when it happened