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0151rhys · Nov 9th, 2015, 08:34

Hi All, I have recently purchased a c70 t5 which supposedly had been remapped. Anyway this weekend I changed the PCV unit and pipework, replaced the turbo vacuum lines and it has had a full service oil,plugs,rotor arm and cap etc. Prior to this it would occasionally pull aggressively and other times not. Now it boost all the time and feels good, however I noticed the boost gauge is now hitting almost 1.5 bar and dropping to about 0.9 bar. Does any one have any ideas what could be causing this. In addition to the above work I removed the nasty badly modified inlet pipe and fitted an original between the air box and turbo. Could some on assist me and tell me which connection go where so I can ensure I am correct.

Nov 9th, 2015, 08:34	#1
0151rhys New Member Last Online: Jan 10th, 2016 21:35 Join Date: Nov 2015 Location: Wirral	Boost Spiking?? Hi All, I have recently purchased a c70 t5 which supposedly had been remapped. Anyway this weekend I changed the PCV unit and pipework, replaced the turbo vacuum lines and it has had a full service oil,plugs,rotor arm and cap etc. Prior to this it would occasionally pull aggressively and other times not. Now it boost all the time and feels good, however I noticed the boost gauge is now hitting almost 1.5 bar and dropping to about 0.9 bar. Does any one have any ideas what could be causing this. In addition to the above work I removed the nasty badly modified inlet pipe and fitted an original between the air box and turbo. Could some on assist me and tell me which connection go where so I can ensure I am correct.