Golf 1.9TDI engine management light
Discussion
The engine management light (same as glow plug light but flashing) came on a three times on my drive into work today in my 2008 mk5 golf bluemotion 1.9tdi. It just flashed for a couple seconds then went off. Each time the engine was under light load, probably around 2k rpm. No loss of power, and jerkiness, just a few flashes of the light (with "engine fault workshop" coming up on the MFD. I ran it through 3rd gear a couple times on full load and the car feels exactly the same as usual. Fuel economy was unaffected (maybe a bit better than usual, only but 1 or 2 mpg better over a 40 mile journey so within tolerance of what I would expect).
A colleague is going to bring in his code reader for me tomorrow but I'm just wondering if this rings a bell with anyone or if anyone can shed any light on what it might be. I'm not confident anything will be logged as the light is off, hopefully it will have stored an intermittent fault.
A colleague is going to bring in his code reader for me tomorrow but I'm just wondering if this rings a bell with anyone or if anyone can shed any light on what it might be. I'm not confident anything will be logged as the light is off, hopefully it will have stored an intermittent fault.
Well it's back again! Came on frequently on the way in, always on light load, in all gears and even once in neutral whilst idling. Happens on both cruise control and driving normally, so can rule out a dodgy throttle pedal. Will try scanning it again later but the code reader I have access to isn't great! Will have to stop in at a friends garage when I'm around and use theirs!
It's worth noting that the battery was disconnected for about 24 hours over the weekend! Any ideas of things that might be on the way out and how to check them would be appreciated! All I can think is that it could be the MAF sensor, as it doesn't happen on high load/revs, when I imagine the boost gauge could be used to give the ECU it's load input.
It's worth noting that the battery was disconnected for about 24 hours over the weekend! Any ideas of things that might be on the way out and how to check them would be appreciated! All I can think is that it could be the MAF sensor, as it doesn't happen on high load/revs, when I imagine the boost gauge could be used to give the ECU it's load input.
Just went to take the car for a spin and the EML came on with the ignition, so scanned it before driving and got "P0546" which the book says is exhaust gas temperature sensor circuit too high.
Comes on almost every time I applied load now, and the car seems a touch down on power (might not be, just felt a touch down). What should I be looking at for a new one?
Comes on almost every time I applied load now, and the car seems a touch down on power (might not be, just felt a touch down). What should I be looking at for a new one?
Edited by Nick1point9 on Monday 14th January 13:48
What was an intermittent flashing EML is now a different warning light, the yellow outline of an engine (emission systems warning light?) on solidly, so will scan again and see if it's the same code. Less annoying though as the dash doesn't bing and light up every time I apply load...
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