MG_OS

Hi everyone,

Apologies for keeping quiet the last few weeks, I do very much appreciate everyone's input and I think I've been able to narrow down the fault a bit recently. 

As David mentioned above, I now also think it's less likely to be the O2 sensor. The sensor was replaced back in November and the code was cleared at the time so it is a bit odd that it has returned, however, I think the computer might be misreading a problem and reverting back to the O2 sensor. I scanned the car and it still came up with P0135 and no other faults, using a cheap Bluetooth scanner and Torque Pro, not the best I know but all I have at the moment. 

So, what I have learned from driving the car around the city as well as on longer motorway stretches is that it runs absolutely fine when it's up and running. The problem exclusively exists when the engine is cold / at start-up that much is clear now. What happens at start up is that the engine starts rev hunting from around 400rpm-800rpm and then just dies down to 0 until it stalls. This all happens within a few seconds of start-up and then if I restart the car everything is fine. Sometimes when I notice it starting to complain I just turn the car off myself now and back on and then it's fine. What I have noticed is that it tends not to do this if I start the car and just let it sit there a bit first, but if I start and basically get going straight away it starts complaining. Especially, if my first move is to reverse out of a car park or similar - it basically always stalls on me if the first action is to reverse. 

So, this does seem like the IACV could be having difficulty. Here's a probably silly question mind you - I have a TF160 VVC - surely this also has an IACV but I can't find it neither does the workshop manual point one out? Am I missing something? 

Another thought is that it might be the alternator as the problem also exists more if I start the car with the radio and fan on at the same time, also I read somewhere that being in reverse puts extra load on the alternator but I'm not sure about that. For clarity, this car does not have air-con. 

Well, my next step would be to have a look at the IACV anyway...if only I could find it?