Engine management flashing with misfire

[Keith Lemon]

Hi

Did an oil change yesterday. Driving the car today and i started to get a really bad misfire, followed by the engine management light flashing. Plugged the RS tuner in and no fault codes stored. Does anyone have any idea what this could be, have checked leads / plugs etc and everything seems right?? Theres a really bad smell of petrol when its running, coming from the exhaust but smells like pure petrol,

Any suggestions would be appreciated, cant drive it how it is!

cheers
Wayne

 

[Da]

Could be a few things - coilpack/plugs/leads/O2 sensor.

Any further lights on the dash?

 

[NWPerformance]

Could be coil pack or map sensor

 

[ForceIndia]

Try lambda 1st.

 

[Keith Lemon]

Could be a few things - coilpack/plugs/leads/O2 sensor.

Any further lights on the dash?

No other lights , when it's first started there are no lights at all - engine management starts flashing after couple of minutes - just plugged rs tuner in again and it had a fault stored - rear 02 heater fault?? Anyone have any ideas what this is?

 

[maynard]

rear lambda lensor from the looks of that description.

that particular lambda is classed as the diagnostic lambda sensor, and costs approx £60 for a bosch one from a motor factors.

 

[Keith Lemon]

Not sure if its coming up with that becuase its decatted. Its now also coming up with code df003 intake air tempreture sensor?

 

[Keith Lemon]

also, when it was cold this morning it ran perfect for about 4-5 mins until it warmed up, then it ran like a bag of s**t again

 

[ForceIndia]

also, when it was cold this morning it ran perfect for about 4-5 mins until it warmed up, then it ran like a bag of s**t again

Def sounds like lambda.

 

[Keith Lemon]

All fixed, was number 3 spark plug down, runs mint again now!!