Good morning. Just got on this forum. I own a V70r 2004.I'm having problems with an intermittent fault going into Limp Mode at times. I've changed the coil packs, spark plugs, and the MFA. I found a leak in the nipple tube going to the turbo. Fixed that. Car went well for two weeks with no hesitation, then went back to Limp Mode. The OBDII gave me the following codes, Pre and Post P0420,P0221,P2135,P2111 . I did the glove test for the PCV, and suction was good. What can cause this fault at intermittent times? Voltage is at 4.8 . At times it runs well, at times not. Next step the, the intake manifold gasket. I'm at a loss. Can anyone help? Love the car ...

 

Welcome aboard