Cutting out

**simonglos** · 26-06-2016, 07:10 PM

I have an issue with my 1.8t golf and can not figure out what is going on. I was driving back from the next town and all of a sudden as soon as the car comes on boost its misses chucks out loads of smoke then dies. Then after cranking the engine for a while it finally starts and then goes again.
I had a brand new k03s turbo in he garage so I bolted that on done a compression check and started it run fine revs fine idles fine with no miss. But as soon as I drive down the road and he car comes on boost the thing starts to sprool up then tons of smoke comes out the back and it dies again. No idea what is going on.
Please please someone help me!!!!

**h100vw** · 26-06-2016, 07:18 PM

Originally Posted by simonglos

I have an issue with my 1.8t golf and can not figure out what is going on. I was driving back from the next town and all of a sudden as soon as the car comes on boost its misses chucks out loads of smoke then dies. Then after cranking the engine for a while it finally starts and then goes again.
I had a brand new k03s turbo in he garage so I bolted that on done a compression check and started it run fine revs fine idles fine with no miss. But as soon as I drive down the road and he car comes on boost the thing starts to sprool up then tons of smoke comes out the back and it dies again. No idea what is going on.
Please please someone help me!!!!

Do you have a boost gauge on it? What's that get to with the N75 disconnected from the harness?

Most likely is a monster boost leak. Lots of air measured by the MAF but not all going to the cylinder. So the ECU injects 100hp worth of fuel for 50hp worth of air. massively rich mixture.

gavin

**simonglos** · 26-06-2016, 07:26 PM

I don't have a boost gauge I will have good look around and see if there are any splits in the pipe. That all makes a lot of sense

**h100vw** · 26-06-2016, 07:29 PM

Or a pipe blown off. If it runs ok off boost as a normally aspirated engine, it's a pretty safe bet there's a leak somewhere I have found in the past

**simonglos** · 26-06-2016, 07:45 PM

Ok I had a look at all the pipes and they all seemed good, I might have a good look at the intercooler tomorrow and see if it has hole. Unpluged the n75 and it isn't as bad.