DaveSupTT Posted November 13, 2007 Share Posted November 13, 2007 Does anyone know whats going on with my car - ITS DOING MY HEAD IN! My car is a TT bpu and normally up to this last week its seems to of lost all power. What I mean is when I put my foot down it normally pins you to your seat when the 2nd turbo kicks in. Well now its not! No exaggeration, my car feels slow, and its not a case of me got used to the speed, its really noticeable. At first I though my 2nd turbo wasn't coming on, but it must be as I can I can still reach 1.2bar plus. Secondly I though it might be one of my hoses that had come off or loose, but I have checked and they are all in place. So know I haven't got a clue. Other problems I seem to be having with my car which may be related to the above??? 1) Its only done it twice ever but when I put my foot down (when it was still pinning me to the seat) all of a sudden it felt like I hit a brick wall. And Im 99% sure it wasn't fuel cut as I have had this and it was totally different. Also on these two times, the big warning light came on and also the engine light came on! The 1st time it happened I though it was going to slow down and stall, but it didn't. After each time, power does come back, but as its my engine light that came on, I just drove it carefully. 2) In the morning, my car is struggling starting now and again, struggles 1st time and then starts straight away 2nd time. Although it does start straight away on most occasions. 3) My oil light comes on now and again, I have checked levels and it has gone down but not that much, as I only filled it up about 3 weeks ago. I have check for oil leakage and I cant see any, also I have not got a engine under tray so its not falling into that. Other notes There are no signs of any smoking at all or colour changes in the fumes. So WHATS UP WITH MY CAR Its going into Chris Wilsons on Saturday for a service, but I wouldn't mind knowing what to expect? Everything seemed ok last week when I booked it in, im going to turn up with all these problems now! Quote Link to comment Share on other sites More sharing options...
Mike_Mac Posted November 13, 2007 Share Posted November 13, 2007 Have you read the error codes that the ECU would have registered after the EMS light came on yet - if so what were they? Quote Link to comment Share on other sites More sharing options...
tbourner Posted November 13, 2007 Share Posted November 13, 2007 point 1) Sounds like fuel cut to me, those 2 times when the warning triangle came up. Maybe the other time you've 'had fuel cut before' wasn't actually fuel cut. I'd get your fuelling checked, could be running lean!!! Quote Link to comment Share on other sites More sharing options...
DaveSupTT Posted November 13, 2007 Author Share Posted November 13, 2007 Have you read the error codes that the ECU would have registered after the EMS light came on yet - if so what were they? No I havent, Where abouts are the codes displayed? Quote Link to comment Share on other sites More sharing options...
DaveSupTT Posted November 13, 2007 Author Share Posted November 13, 2007 point 1) Sounds like fuel cut to me, those 2 times when the warning triangle came up. Maybe the other time you've 'had fuel cut before' wasn't actually fuel cut. I'd get your fuelling checked, could be running lean!!! The only thing is the time when i thought i bleieve i had fuel cut was at quite some speed, as its delimited, and these two times I was flooring it and it happened between 85mph-100mph? Quote Link to comment Share on other sites More sharing options...
Ian C Posted November 13, 2007 Share Posted November 13, 2007 It could be overfuelling badly for some reason, that can really sap power. Could also explain the starting issues. Sounds like you described fuel cut perfectly with the description so what else have you felt that you think is fuel cut? -Ian Quote Link to comment Share on other sites More sharing options...
DaveSupTT Posted November 13, 2007 Author Share Posted November 13, 2007 It could be overfuelling badly for some reason, that can really sap power. Could also explain the starting issues. Sounds like you described fuel cut perfectly with the description so what else have you felt that you think is fuel cut? -Ian I was thinking that it could be overfulling as well, as it does sound like its being flooded on start up. I have an o2 sensor on order from Nic at the moment, as im also only getting on average 220miles to a full tank and thats driving sensilble. As for feeling fuel cut, it was a similar feeling, only the difference was, when i was flooring it just as it was about to "cut" the accelorator pedel went "slack" if thats the word (opposite to it being spongy in other words lol) and all power was lost but soon as the boost drop the power was back instantly. Where as these 2 other times im on about, the engine light came on and i dunno, it just felt different somehow. and power didnt come back straight away? Quote Link to comment Share on other sites More sharing options...
Cass Posted November 13, 2007 Share Posted November 13, 2007 Just read this.Mine does the same thing,its not as sudden as the fuel cut feel,Does your revs drop when power is lost then suddenly pop back on again or sometimes have to pump the pedal to get them back on? Quote Link to comment Share on other sites More sharing options...
tbourner Posted November 13, 2007 Share Posted November 13, 2007 Fuel cut the light comes on the dash and the car loses power for about 3-4 seconds, and it will always be when you're foot flat to the floor, high boost. Quote Link to comment Share on other sites More sharing options...
stevie_b Posted November 13, 2007 Share Posted November 13, 2007 No I havent, Where abouts are the codes displayed? Do a search on here about error codes. All you need to do is join 2 terminals of the diagnostics port with a paperclip. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 13, 2007 Share Posted November 13, 2007 The service is not a problem, but unless you leave it with me, or it's something that can be quickly addressed, I won't be able to sort the turbo issue. If you can leave it i think this would be very sensible, as if it's over fuelling due to turbo issues you can be looking at an engine rebuild in fairly short order, due to bore wash and oil dilution. let me know, 07971-952084, thanks. My wife can run you to the station at Wem if you need to take a train back. Quote Link to comment Share on other sites More sharing options...
Sean1933 Posted November 13, 2007 Share Posted November 13, 2007 First problem sounds like fuel cut to me. Your loss in power & starting problems sound like a fuelling issue as per Ian C's comment. I would start by having another good look for air leaks. Then again if your not sure just get the car to CW and he will fix it Keep us informed CW. Quote Link to comment Share on other sites More sharing options...
DaveSupTT Posted November 13, 2007 Author Share Posted November 13, 2007 Just read this.Mine does the same thing,its not as sudden as the fuel cut feel,Does your revs drop when power is lost then suddenly pop back on again or sometimes have to pump the pedal to get them back on? Yep this seems to ring a bell. Like tbourner said, this is what my experience of fuel cut was like, where as the two times im on about is what cass is describing. Quote Link to comment Share on other sites More sharing options...
Ian C Posted November 13, 2007 Share Posted November 13, 2007 Could be then you are losing a turbo as an actuator is closing and then reopening. Take up CW on his offer If you are overfuelling enough to lose power then it's going to be 8:1 afrs or so and that's borewash time If it's the 2nd turbo not showing up then number one will overspeed and overheat the air, causing knock and shortening its lifespan. Both cases are bad! Quote Link to comment Share on other sites More sharing options...
DaveSupTT Posted November 13, 2007 Author Share Posted November 13, 2007 :cry:I dont want any bad cases I have no money!!!!! Quote Link to comment Share on other sites More sharing options...
Ian C Posted November 13, 2007 Share Posted November 13, 2007 They are bad mid to longterm, if you cross your fingers it might be a simple split hose and therefore (relatively) cheap to fix A lot cheaper than grinding your block into a 3.1l due to borewash Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 14, 2007 Share Posted November 14, 2007 :cry:I dont want any bad cases I have no money!!!!! You are worrying me..... Quote Link to comment Share on other sites More sharing options...
DaveSupTT Posted November 14, 2007 Author Share Posted November 14, 2007 You are worrying me..... hahaha, thats two of us worried then lol See you Saturday! Hopefully theres not much wrong at all. Drove the car this morning and the car is still boosting correctly, ie reaching 1.2 - 1.3 bar, just doesnt feel like the usual kick back when the 2nd turbo kicks in. Normally feel quite a change as its BPU? Quote Link to comment Share on other sites More sharing options...
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