headlights are working and it was the CEM! got a used one and headlights worked immediately..thank u for your response!

i just replaced the map sensor with a used one from ebay but maybe it was no good :/ thank u for the suggestions!

Does anyone know what this code could mean?

I am only trying to pass a smog test so I can renew registration (which this has already added up since I can't pay it till I get these problems fixed) so I had the map sensor and boost sensors replaced, changed oil, cleaned the throttle body and replaced the thermostat...which took care of all the ...

i'm trying figure out why the headlights will just go out and then start working again a couple days later. It's not the fuses or bulb problems, I just replaced the OEM thinking it was that but they just went out again..anybody have any idea what I should try next? please help!

patdor wrote:Had same problem with my Volvo S40.Had to have new control unit fitted by main dealer,cost over£600

Is the control unit you had replaced that fixed it the Control Electronic Module? the CEM?