New Topics › Forums › General Discussion › 1999 – 2002 Nissan Quest › Vent control valve bad. Will it save gas to replace it? › Reply To: RE: Vent Control Valve Bad ?
Cod P1148 is CLOSE LOOP CONTROL. Service manual says the culprit is one of the following: the circuit for the front heated oxygen sensor, the front heated oxygen sensor, or the front heated oxygen sensor heater. There is nothing about a vent control valve.
With that code, the van will not pass its next inspection. I would not consider 161K miles being too much for these vans. Mine has 183,800 miles at the moment and she is still running extremely good.
Hope it helps.