Ok peeps, I have unplugged the lambda sensor, and car now works fine!!, do I need one?
With the sensor disconnected either the problem will still be there, in which case it's not the cause of the problem. Or, the problem will vanish, and the fix would be replacing the sensor. I wouldn't have thought being off for ten minutes would allow the problem to recur if it were the upstream O2 as I don't think ten minutes would allow the sensor to cool enough, having said that, it has been a tad nippy of late.
The heater would only cause problems during warm up from cold. Any other running problems that go away when disconnected point to the sensor itself being bad. A new NTK sensor from rockauto.com would set you back about £50.Sent from my D5803 using Tapatalk
You're right. I was posting without rereading the thread. I had a thread from jeepforum on my mind I think Sent from my D5803 using Tapatalk
Sorry for jumping on the thread but I have a similar issue with my Jeep and I am not sure if its not the same. Mine starts and runs fine but if you leave it to idle it gets lumpy and starts to misfire. When its restarted after fits warm it does the same thing. If I drive it around it gets better and acts normal. The engine light comes up now and again and says misfire on whatever random cylinder. Could this be the O2 sensor?Its not urgent and I have not had any time to look at it.
Is your warning light working bad dog? It should come on as a test when you first switch the ignition on.