Hiya

 

Around christmas time we did a turbo change on my 2006 Octavia 1.9tdi, the car was started and ran but had a boost leak issue. Then I had an accident and broke my foot, so car has just been sitting around since february and havent been started since. Today i went to start the car, the battery was low but i jumped it and car started and ran fine, i unhooked the jumper battery and After a couple of minutes it started smoking pretty dark grey and black, looked like diesel smoke to me, and i heard a "tick" "tick" sound, like an injector gone bad. I stopped the engine, checked oil levels and coolant just to make sure it wasnt sucking in oil or coolant and everything was up to level. After a few minutes i tried to start it again and now the engine wont turn over. I can tell its trying to crank but it sounds and feels like its hydrolocked.

 

Im thinking one injector is staying open/broken and is dumping diesel into a cylinder, could possibly be oil or water, but there was no pressure in the coolant and like i mentioned above, oil and coolant is up to level.

 

Are these injectors likely to stick open? any other scenarios thats known to happen on these engines? anything i can do other than actually pulling the injectors to find out whats going on?

Could low battery cause injectors to missfire?

 

I have vagcom,im not very experienced with it tho and since i cant run the engine im not sure how much use it will be for me to find out whats going on?

 

Help and suggestions are very much appriciated, Thanks in Advance!

I looked some more at my car today, including doing a diagnostic scan, No codes found.

I tried to start the car and to my suprise it started right away, its running a bit rough and smoking a lot out of the tailpipe.

The car has a pretty big boostleak somewhere, possibly also leaking around the egr, can this cause the engine to get too much diesel?

Im also starting to wonder if the timing belt might have skipped a tooth when the turbo blew, but that would be pretty odd wouldnt it?

it does seem like its out of time when starting the car, but if theres a lot of fuel in the cylinders i guess it will feel that way too.

the turbo sucked up a lot of the engine oil but this should have been flushed out, only thing i can imagine there might be oil left is in the tailpipe and possibly in the egr if thats possible. The car has prolly ran for about 1 hour total after the turbo change, so would think the oil should been burnt out by now?

 

im not sure where to start, should i get the boostleak fixed first, or check timing or possibly injectors? im afraid this engine isnt really worth anymore time or money, but at the same time, i would like to avoid junking this car since i already put quite a bit of money in it.

 

Please feel free to air your thoughts and sugggestions

 

I had a lot of smoke when one of my intercooler pipes disconnected itself a few years ago.  When I say a lot, it was like a comedy James Bond smokescreen on anything but the gentlest of throttles.  Have a look at the pipes behind / beneath the bumper.  It's basically putting loads of fuel in, because it thinks it's getting loads of air, but it's not.

It can take many hours, even weeks of driving to burn all ejected oil from an exhaust system.

 

That statement comes from experience but with a 60's vehicle where the inlet valve was not opening so it was drawing oily air past the rings and filling the exhaust silencers, this was decades before catastrophic convertors etc which may limit the amount of oil that gets through.

 

In any case the engine needs to be running at high revs under load like on a motorway for the exhaust to be hot enough to burn away oil that has got through to the silencer boxes.