Tried searching and couldn't find any additional information. I was tested both air pumps and found both operational. Any tips where else to look? Thanks!

 

Doesn't P0492 state insufficient flow, if so, check for leaks in plastic tubing, make sure all pipes are seated.

Also check the air intake filter on each SAI pump.

Johnny

 

I applied power to the air pump motors and listen for leaks but not sure if what I’m hearing is normal. I’ve read guys pressure testing but now sure how I would do so. I pulled the sensors out to try smoking the system and it just smokes out the filter so that didn’t help and the filters seem good when I ran the motors I felt a good suction from the filter side.

 

i have just bought both SAI pipes for the engine bay that have the pressure sensors on them( pre 2007 MY cars do not have the sensors) ,
the most common place for the plastic tube to crack/break is either side of the sensor fitting, there is a tube for each side, the left bank tube runs right in front of the engine to the multivalve ,i carried out a temporary repair to confirm my issues, and as i said i am now waiting for brand new tubes , which come with all fittings and new sensors to arrive

part numbers are
part 11 in pic 3WO131128N was around £70
part 12 in pic 3WO131128R £130


BB

 

Were you able to see the cracks? I'm visually checking and don't see any.