Engine management light and misfire

**stevem365** · 13-10-2016,08:02 PM

I know you are right, but was planning to do the exhaust valves, guides x 6, valve seals x6, headset, head bolts and re-use the timing chain as am on seriously tight budget!!
Car has done about 77K...

**Crasher** · 14-10-2016,09:20 AM

So you won't be upset if the hydraulic compensation elements pump up and smack a valve into a piston or the chain jumps a tooth or three and does the same? I do the full Febi kit for £119 or the basic kit for £80 if the gears are not worn, a set of Febi lifters is £40.55 and a set of fingers £56.21.

**stevem365** · 16-10-2016,11:22 AM

Well that would be slightly annoying :-)
What do you think about the reconditioned head services on fleabay for £225?

**Crasher** · 16-10-2016,08:25 PM

I would rather use a local engineer. When we do them we try and get people to have a VAG exchange head but this gets more difficult to justify as the car ages. Three valves, three guides and a skim would be about £150 at most engineers, that is all there is to a recon head, the rest is dressing.

**stevem365** · 17-10-2016,01:56 PM

Crasher, thank you for your help and advice on this...

**Seifer** · 20-10-2016,07:40 AM

Hello everyone, especially Crasher who is always helping out

Yesterday I encountered a similar (if not the same) problem discussed here.
I have a 2007 VW polo 1.4 TDI Bluemotion with around 130.000km
Yesterday I had a main belt change (complete kit) and an oil change.

5 minutes after I drove out of the mechanic garage I noticed the glow plug/engine management light flashing (blinking) and a reduced power to the engine. The engine did not stutter, it just did not accelerate as it did before.
diesel-engine-managment-lamp-icon.jpg
I called up the mechanic who did the work and he said that I should try turning off the car and then back on. After I did it, the glow plug/engine management light stopped flashing. However today, while driving to work it started again.

I read from one of Crashers posts:
"It often happens if oil changes have been neglected or unfortunately (for the mechanic doing the job) just after an oil change. I am always extremely cautious with the 3 cylinder engines when doing an oil change, I like to crank them over plugs out (coil packs disconnected from the harness) and get oil pressure up on the starter before running them up."

So any thoughts? What should I do? I intend to drive my car to the mechanic this afternoon but I'd love some insight to what might be wrong.
I also read that coilpacks could be the source of the problem...

**Crasher** · 20-10-2016,11:50 AM

This thread and your quote of my post are not relevant to a TDI. Your car will have a BMS code engine and the symptom you describe sounds like a boost control error so it is possible he has left off or incorrectly connected a boost control vacuum hose. The sensible first step would be to have a fault code read done as this will help pinpoint the reason for the "limp mode" it is going into.