Boost and Co2 Problem

[Anonymous]

I have an intermitant boost problem, it normally runs perfect and then it just whistles a lot and holds back, and when you come off the gas you get a loud bang from the exhaust but you don't get no smoke from the exhaust. The Co level is at 16% on tickover. Oil pressure is fine. PLEASE HELP!

 

[jasegould]

16% :shock: Lambda sensor??

 

[Glyn]

Hi mate, I have the exact same problem with my car and it's been this way for ages :x I did replace the Lamda sensor, (from a scrapper though) but saw no change. It's more of a pain also that my ecu is not responding to the fault code check. (I short the pins correctly but the light just stays on) And don't know about you but mine runs loads better when on the last drop of fuel...!

 

[Fast Guy]

MAF or Fuel pressure regulator as well maybe? Injector dropping resistor, or wiring fault maybe holding an injector open.