Ady_E Posted June 9, 2007 Report Share Posted June 9, 2007 I was. (with the emphisis on the 'was') I found the problem to be the 'Boost Pressure Regulator Valve N75'. I spent ages trawling the net, this forum included, for a decent explanation of how this valve works. (or in my case, doesn't). And at last I found it: N75 Data Sheet It also has a good diagram of the whole boost system if you need it. So, if you're also suffering from Low Boost Pressure, take a look at the N75. Just measuring the resistance of the solenoid coil (should be around 30 ohms) isn't enough though. My valve was electrically sound but was 'passing'. Charge air was leaking through the valve to the output that controls the wastegate actuator thus causing the loss of boost pressure. Hope this helps anyone else with this problem and if not it might make for interesting reading anyway Quote Link to comment Share on other sites More sharing options...
kite Posted June 10, 2007 Report Share Posted June 10, 2007 Good find Quote Link to comment Share on other sites More sharing options...
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