03 2.5 not starting

[Ewazix]

The OP reports the car starting but spluttering to a halt from cold and has three codes relating to O2 sensor reading being too lean / out of spec. Going with the symptoms and info the car is giving this logically suggests either O2 sensors are down causing bad fuelling OR or there is a vacuum air leak on the intake side causing over-lean fuelling or metering. Its an M54 engine which is famous for split hoses and boots around the intake system and MAFF so that's where I would start first, hopefully it will be a cheap fix

 

[zagamuffin]

funny one, cars perfect since my last post above but battery light came on today,drove home and put a meter on it 14.5v which is a charging alternator.I scaned with obd and got the original codes again p0160,p0161p2234 so i cleared them and went to restart it.First issue all over again in that car wouldnt start,i did the flooded procedure with full throttle and it started with battery light gone.

driving fine since, very weird,ill look for split boots as suggested above but batt lite is odd ???

zaga

 

[Anmarube]

Just put a new set of plugs in mine. Made a great difference on starting.
Thing is and always has been is. If I get in and just turn the key it will crank for about 5 seconds and then start.
If I get in and put ignition on then seatbelt and then crank it will start straight away.
Was thinking it was a priming of the pump type thing.

 

[ph001]

The OP reports the car starting but spluttering to a halt from cold and has three codes relating to O2 sensor reading being too lean / out of spec. Going with the symptoms and info the car is giving this logically suggests either O2 sensors are down causing bad fuelling OR or there is a vacuum air leak on the intake side causing over-lean fuelling or metering. Its an M54 engine which is famous for split hoses and boots around the intake system and MAFF so that's where I would start first, hopefully it will be a cheap fix

O2 sensors are ignored at start up.