Engine Management Light (coil symbol)
Hi
Me again with my 06 2.0 TDI Sport.
I've just driven along the motorway and the 'coil' symbol started flashing on the dash. A message then came up saying 'Engine fault - garage'.
I then seemed to lose turbo, but not all power as I could still accelerate, just not as quickly as, I've said, it appeared the turbo wasn't kicking in.
I got home, turned the engine off, and immediately restarted it. The light had gone off and I took it for a quick spin and the car seems to be functioning normally, turbo and all.
Should I be concerned?
Re: Engine Management Light (coil symbol)
It dropped into limp mode. If you get a code read done it may tell you why. You could wait for it to happen again or get it checked now. Personally I would check it now, just incase.
Re: Engine Management Light (coil symbol)
Cheers for that.
What is limp mode, and what normally is the cause? Does this mean VW produce a range of viagra?
Re: Engine Management Light (coil symbol)
Quote:
Originally Posted by
rob1990
Cheers for that.
What is limp mode, and what normally is the cause? Does this mean VW produce a range of viagra?
:D
Re: Engine Management Light (coil symbol)
When the engine ecu detects a signal out of spec it stops the turbo boosting, incase you damage the engine. This is called "limp home mode". It is usually due to a turbo fault being detected. I would get a code read done.
Re: Engine Management Light (coil symbol)
Re: Engine Management Light (coil symbol)
Quote:
Originally Posted by
martin1810
When the engine ecu detects a signal out of spec it stops the turbo boosting, incase you damage the engine. This is called "limp home mode". It is usually due to a turbo fault being detected. I would get a code read done.
Again, thanks.
Can I do this at home? I've seen numerous cable/software packages on ebay, and it's just that my nearest VW dealer is several light-years away from me.
And which type of cable/software would I need? Would this one be ok:
http://cgi.ebay.co.uk/Auto-VAG-COM-D...d=p3911.c0.m14
Sorry about the numerous questions, but all help is much appreciated!
Re: Engine Management Light (coil symbol)
-just replying so that I see any response to the last question.
I would find it hard to justify the cost of the standard VAG-COM package, which from memory is about £200. However, if the Chinese version is any good for routine fault code checking/clearing, £20 would be a no-brainer.
Mike
Re: Engine Management Light (coil symbol)
Quote:
Originally Posted by
mikecb1
-just replying so that I see any response to the last question.
Mike - if you click on 'Thread tools' at the top of the page you can subscribe to the thread.
Re: Engine Management Light (coil symbol)
Rob..You can't use the cheap cables on a B6 passat. The only thing that works vag-com is the can-bus dongle from Ross-tech plus their software. Costs about £260 from Gendan or Ilexa. You can get a handheld scanner for about £90. Search on here for recent thread.
Re: Engine Management Light (coil symbol)
My 2006 140 passat has got exactly the same problem. I have taken it to my local VW garage who checked it on their diagnostic equipment and told me that my car needed a new wiring loom for the turbo pressure sensor. I have been quoted over 300 pounds, which includes 4 hours labour, which seems excessive to me.
Re: Engine Management Light (coil symbol)
This problem seems to be coming up quite a lot lately, I posted mine on here a while ago. Told by VW it needed a new turbo at £1748 :yikes:.
I just pull over, turn ignition off then on and all's well again, except the cruise doesn't then work for a few miles afterwards - just get an exclamation mark where the digital speed is displayed.
Far from ideal, but my new car is on order and my boss won't pay to fix this one.
https://www.vwaudiforum.co.uk/forum/s...883#post422883
I've had the RAC out, but when they plug their diagnostics in there's never any fault recorded, as it seems to reset itself after ignition off/on.
Re: Engine Management Light (coil symbol)
Just to update this thread, I finally took mine to a VW dealer to get the code read.
He said it was an 'overboost' problem, and after further testing they decided the Air Mass Metre was faulty and needed replacing.
Since having this sorted, the issue has not reappeared.
Not yet, anyway.......
Re: Engine Management Light (coil symbol)
I suppose this sort of thread goes to show that the question `what does the xxxx display mean specifically` doesnt have a simple answer as it appears to depend on the code behind it. So far the coil light coming on here has been diagnosed as:
wiring loom £300 inc labour
new turbo £1748
Air Mass Meter
Speed sensor
Shame every repair doesnt incl a printout of the code. Hopefully it would show these 4 fault had different codes. ??
I am always curious about these wiring loom replacements. What goes wrong with the wiring loom? Burns out due to heat or over current, connector fail? Looms used to be reliable till you messed with them and then it was usually at or near the connectors.
Re: Engine Management Light (coil symbol)
Quote:
Originally Posted by
vince47
........I am always curious about these wiring loom replacements. What goes wrong with the wiring loom? Burns out due to heat or over current, connector fail? Looms used to be reliable till you messed with them and then it was usually at or near the connectors.
When I got "Emissions Garage" on the MFD the fault was a failed barometric pressure sensor. Replacement involved a loom (how big or small I know not) so I would guess the sensor in question is an integral part of a particular loom. This is maybe aimed at reducing the number of potentially troublesome connectors.
