Thread: MY first country trip in Disco 2

over boosting then limp mode

td5 overboosting - Google Search

The thread by ERMPZ in particular has lots of info helpful to me learning all about my new to me td5auto. However some of the replys leave me floundering as I have yet to get to know all the acronyms. Some I can work out the meaning of and others well ... I'm struggling with.
Is there somewhere on this site I where I read up this basic info as I don't ( as yet ) have a workshop manual.

Try the same hill again but turn the climate control off, it makes a HUGE difference.
Also change the air filter, it may make more of a noticeable difference than changing the oil, not saying changing oil is a bad idea though. The air filter sucks dusty air from the front passenger wheel arch. I've had mine so dusty after 4WDing in the Vic High Country that the suction from the engine deformed the filter as it was so blocked. This also made the engine management restrict the boost, but if this happened you would probably have noticed as there is no acceleration on the flat let alone a hill when this happens.

Originally Posted by Jazzman

Try the same hill again but turn the climate control off, it makes a HUGE difference.

Also change the air filter, it may make more of a noticeable difference than changing the oil, not saying changing oil is a bad idea though. The air filter sucks dusty air from the front passenger wheel arch. I've had mine so dusty after 4WDing in the Vic High Country that the suction from the engine deformed the filter as it was so blocked. This also made the engine management restrict the boost, but if this happened you would probably have noticed as there is no acceleration on the flat let alone a hill when this happens.

If it makes a huge difference something's wrong...

in my case over the weekend in the Vic High Country was the wastegate actuator, car would not go above 3000rpms. It made it interesting as it rained... winch got a workout .... Fixed it yesterday, car back to normal powwer.

Originally Posted by Tombie

If it makes a huge difference something's wrong...

I should clarify turning the AC off makes a huge difference to throttle response and less to power or torque but noticeable.

Originally Posted by Jazzman

I should clarify turning the AC off makes a huge difference to throttle response and less to power or torque but noticeable.

Again, something's wrong!

Originally Posted by Tombie

Again, something's wrong!

Do you know what it could be? In every other car I've owned I've also noticed a difference in throttle response and fuel economy with and without aircon turned on. They are 1986 RRC, '92 Hilux 2X4, BA XR6, Subaru Impreza 2.0. I also assumed the extra load on the engine is why the manufactures also used a switch under the accelerator peddle to turn off the AC compressor and tell the auto models to drop a gear at full throttle.

But if the TD5 Disco is different and something is wrong I want to know about it.