Had the R56 for about 2 years now, been a good little run around, it's a nice car for a 1.4, maybe a little breathless, but it's a cheap commuter for work..
recently, it's decided it want to play up, had a new cat fitted at the MOT, then a couple of weeks or month later the CEL came on, and it idles rough, wants to die at low revs when you come to junctions/ traffic lights.. occasionally there is a puff or two of smoke out the back, then you never see it again for a week or so.. fuel/ air mix is certainly off, due to the smell.. I just thought it was the O2 sensor..
Bought a Creator C501 reader, so here are the codes returned..
P0130 O2 Sensor Circuit: Bank 1 Sensor 1
P2243 O2 Sensor Reference Voltage Circuit/ Open: Bank 1 Sensor 1
P0135 02 Sensor Heater Circuit: Bank 1 Sensor 1
P2251 O2 Sensor Negative Current Control Circuit/ Open: Bank 1 Sensor 1
P0012 A Camshaft Position Timing Over – Retard: Bank 1
P0131 O2 Sensor Circuit Low Voltage: Bank 1 Sensor 1
P0015 B Camshaft Positioning Timing Over – Retard: Bank 1
2AB4 DME: Oxygen Sensor before Catalytic Converter: Electrical
2AA3 DME: Oxygen Sensor before Catalytic Converter: Nernst Line
2A66 DME: Oxygen Sensor Heater before Catalytic Converter: Electrical
2AAB DME: Oxygen Sensor before Catalytic Converter: Virtual Earth
287D DME: VANOS, Inlet: Actuator Movement
2A99 DME: Oxygen Sensor before Catalytic Converter: Sensor Lines
2845 DME: VANOS, Exhaust: Actuator Movement
2A64 DME: Oxygen Sensor Heater before Catalytic Converter: Function
2AC4 DME: Oxygen Sensor Heater before Catalytic Converter: Plausibility
Any help is greatly appreciated, I kind of understand some of it, but always good to ask people that know more than you on a subject..
1. Would replacing both the Vanos sensors and the upper O2 sensor be a good start?
2. There is no rattle from the cam chain, but would it be an idea to look at this?
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