stevebt

iTrader: (8)

does anyone have any ideas why my turbo will only make 0.7bar its been off the car for about a month and i have had a td4 fitted i turned the avcr off and it has just stood on my drive for about 1 month, fitted my 20g back on and turned the avcr back on expecting it to hit 1.5bar , but no its only making 0.7bar. the battery has died 4 times since it was sitting on my drive, can this affect the settings as its driving as though the avcr is off i have used both settings A and B and it only maxs at 0.7bar

Andy.F

Try pulling the air pipe off the wastegate actuator, drive it off boost until you get to a section of road you can use 5th gear. Foot to the floor from 2500 rpm and watch the boost rise, it should hit your 1.5 bar target before 3500rpm (at which point you lift off VERY quickly to avoid overboost !) If it does this then it is the control system at fault, if it still only makes 0.7 bar then either the wastegate arm has been bent in transit (when the box was thrown out the DHL van ) or you have an air leak somewhere.

Andy

stevebt

iTrader: (8)

air leak seems more sensible control system?? do you mean the avcr as this what im thinking ??? do i still use 5th for test or 6th

Andy.F

Yes, AVC-R/solenoid/pipework.

5th or 6th should show a similar result

stevebt

iTrader: (8)

there was 5 people around my engine bay (leaning in the bay) when the turbo was refitted, at 1st the actuator pipe was fittted wrong and i bet the pipework around the avcr has been disturbed its gonna be sunday before i can test and considerig all i do is put petrol in it i bet its the same on monday will not make that much differnce as im getting a new exhaust so will need a proper tweak ill get in touch with the person who maps it

Andy.F

Yea, speak to the bloke who maps it
If your two pipes to the turbo nipple/actuator have been mixed up then you will only get 0.7 bar boost. Swap them over and try it, takes 2 mins.

Andy

stevebt

iTrader: (8)

andy

just looked at where the pipe from the actuator goes to, it follows to the ON part on the boost solenoid

FB Tuning

iTrader: (30)

If you mean the "NO" (Normally Open) port on the AVCR solenoid, then this should be connected to the pressure side of the turbo, NOT the actuator

Swap the pipes round and your boost will return

stevebt

iTrader: (8)

cant see where the 2nd pipe goes to, intercooler is in the way ill just ask someone who knows what they are doing to swap them over