2,0 D4D engine problems

[Lasse Rasmussen]

Hi there

Hopefully you can help me.

I´ve been driving Toyota Hilux for many years and 4 years ago we bought an Auris 2,0 D4D from 2007 for the wife.

Last time I did the service, I cleaned the EGR-valve, changed fuel-, air- and oilfilter.

After this service, we havde had some engine-troubles.

When the engine is cold, and you let go in 1 gear and keep the engine running steady in the same rpm, the engine starts humping an bumping as it not ignites in all cylinders. If I accelerate there are no troubles, only when you drive at the same pace and rpm.

When the engine its hot, there no problems at all.

I have also changed the SCV-valve and have an software update, because we had som troubles starting when it was very cold.

Sorry for my English, I´m from Denmark :-)

Anybody knows what to do?

Lasse

[TomdeGuerre]

Hi Lasse and welcome to the Toyota forum.

Have you checked your Mass Air Flow sensor and all the vacuum hoses / connections? Also there's a thread you might be interested in which was really about difficult starting when cold but might give you some help 

http://www.toyotaownersclub.com/forums/topic/135088-hard-starting-when-cold/

 

 

[Lasse Rasmussen]

Hi Tom

Thank you very much, and sorry for my late reaction. 

We had startproblems in very cold weather below -5 degrees. But then I changed the SCV valve with the new version with high pressure and got a software update on the Toyota garage. Then it was no problem to get I running, but get a good running at steady rounds is worse. :-(

I'll check up about the connections and the air mass sensor....

Let you know if I got any results :-)