Citroen xsara picasso 2.0L 2004
I have 4 problems but are they related.
1. Rough running 20 seconds after start up and until the engine is warm - There are two O2 sensors on this car that I haven't checked yet.
2 Loss of servo assistance to brakes during the above rough running period. This has only happened twice. Have replaced vacuum pipe and valve but with no cure.
3.On damp days get copious amounts of steam from exhaust during this same start up period which then clears when engine warm.
4.Have had engine error code P0410 - Secondary air injection to exhaust - 3 times in last 2 months.
Can anyone see a common cause to these problems or are they all just a big coincidence.
Many thanks for any detective work.
John
I have 4 problems but are they related.
1. Rough running 20 seconds after start up and until the engine is warm - There are two O2 sensors on this car that I haven't checked yet.
2 Loss of servo assistance to brakes during the above rough running period. This has only happened twice. Have replaced vacuum pipe and valve but with no cure.
3.On damp days get copious amounts of steam from exhaust during this same start up period which then clears when engine warm.
4.Have had engine error code P0410 - Secondary air injection to exhaust - 3 times in last 2 months.
Can anyone see a common cause to these problems or are they all just a big coincidence.
Many thanks for any detective work.
John