Hi all,

 

Looking for some advice really. I was driving around all day today mainly on long runs but as i got to town and was at traffic lights or roundabouts i.e slow traffic, the cars revs and power seemed very inconsistent. At first it was dipping in revs and seemed to cut in and out and then just as i was coming home tonight sat at traffic lights the car was dipping in revs and seemed as if the car was trying to stay on...i then went to take off and there was no power and seemed as if the car was struggling to go. I had my foot down but was fighting against cutting out. I pulled over and turned the engine off. Waited 5 mins and started it back up turning off the headunit...after that it was fine.

 

The battery is less than a year old and the heaviest duty u can get however i have a subwoofer in the car and after turning head unit off seemed ok. I keep reading the alternator is a common fault and if so does this sound like an alternator problem? And also is it an expensive fix?

 

Thanks!

There is many issues that could be the cause of the running issues but doubt the alternator is the cause, try the in-build diagnostic check to see if there any fault codes.

 

 

Jeff TT

Hi jeff, its sav with the grey widebody...i wouldnt know where to start with an in build diagnostic check...I havent got any of the software etc...would bring to zedworld but dunno what kind of issue it is and if it would cut out on the way..

As an update I have read up the symptoms of a PTU failure on the series 1 PTU's. The symptoms seem exactly the same. I also had inconsistent issues over the last few months of starting the car where it would take a good few seconds of turning the key over to start the car. I believe this may be linked as I have a series 1 ptu. It was a very hot day that day and the heat is a big factor in there failire.have bought a series 2 PTU so when it arrivea I will try that and hope all issues go away!

There is many issues that could be the cause of the running issues but doubt the alternator is the cause, try the in-build diagnostic check to see if there any fault codes.

 

 

Jeff TT

 

Hi jeff!i only just managed to get around to doing the self diagnostic today and pulled up codes 33 and 53 which are both the exhaust gas sensors. I changed the PTU to a series 2 for good measure went up the road and did the same thing. These sensors, whats the best way of sorting them out ie cleaning or replace and would this actually cause the car to cut out like it has.

 

I also have oil in the drivers side exhaust now and as i popped the bonnet earlier when the car cut out there was smoke coming from the engine bay above the drivers turbo. As the car is blowing out oil, could this also mean a turbo on the way out?

 

Cars more hassle than anything but i bloody love it!

 

Help please...

 

Thanks!!

 

Sav

Ok sav you have a few things going on there, the smoke off the turbo will almost certainly be a leak from say the rocker covers above dripping on to the turbo, very common and is worse when after giving it some beans.

 

For now just unplug those pesky O2 sensors it will be better having them disconnected on a set figure rather than connected giving bad signals.

 

The base idle, throttle balance, air leaks, afm timing can all have effect on the issue you having, if you could nurse it up to us it would be so much easier to get it in the ConZult and sort it in one hit.

 

Jeff