Lars, What year model is it and how much road has it seen (kms)? Rgds Matt

I dare say he doesn't have an EGR cooler as the EGR filter is only fitted to the EU2 engine (@ EU3 engine the atmospheric air intake is piped to the air filter box). The EGR modulator acts like a transistor, switching the EGR valve from atmospheric pressure to vaccum as commanded by the ECU...

Not worth it IMHO!! Rather get yourself an EGR bypass kit which will do your engine some good! Dozens of them to choose from -- here's one example EGR Bypass Kits - Alive Tuning Rgds Matt

Lars, Have you checked fuel pressure? The Td5 fuel sender pumps volume, the fuel pressure regulator at the back of the engine creates a restriction so that fuel rail pressure stays above 4 bar. Either a dodgy fuel pump or FPR can cause fuel starvation, which can reveal itself in the form of...

You're quite possibly looking at the EGR filter fitted to pre-02 Td5s, p/n ESR4323... if that's the case would rather invest in an EGR blanking kit. Call out #16 on the following schematic: Rgds Matt

Hawkeye will let you look at but won't record live data. Nanocom conversely will save live data to internal memory (mk1) or to a SD card (mk2 aka Evolution). New Nanocom Evolution is already out, far better tool than Hawkeye. Rgds Matt

Chaps... The fuel pressure regulator (actual insert) can fail in a number of different ways. Below is a schematic of a generic Bosch fuel pressure regulator insert: Possible failure mechanisms: 1- Leaky outer o-ring (diesel leaks out, effect on engine running depends on extent of...

There's actually black, blue, green, white and red.

CKP (crankshaft position sensor) or ECU (engine loom or internal shorting). Faulty TPS (accelerator) signal can also throw an engine check light but engine doesn't usually stall just goes idle. Check this post...

Won't pass advise but here's a list of what's available inc part numbers (this is all stock as in no suspension lift or added weight i.e. roof rack, winch, etc.). Would also recommend looking at whether front springs need to be replaced.

Just leave it out. It is only there to keep the system primed. Have only seen it installed in a few Td5s.

The fuel system is a pressurised one then if any leaks develop diesel comes out -- air does not get in. Air is mostly likely combustion gas leaking through the copper washers at the base of the fuel injectors. Copper washers isolate cylinder bores from the fuel rail. Injector o-rings isolate...

Most likely the XYZ switch as already pointed out. Now when it comes to either filling or "topping up" the auto box with ATF make sure your garage is following the manufacturers procedure: engine running, selector level being moved through all gear positions, box filled until a small bead of...

And that's the reason why ZF calls an ATF change an "oil purification" and not an oil change. If for whatever reason you want to totally renew your ATF, need to carry out 3-4 "oil purifications" in a row, then at last change the filter.

Fuel temp sensor port is upstream of fuel pressure regulator thus should read 6-7 bar. As engine takes fuel this should drop a bit but not below 5.5-6 bar at full boost. Two options, either FPR is fubar (not holding pressure) or fuel pump not delivering enough volume as to keep pressure up...

Fuel pump or fuel pressure regulator (possibly "and" instead of "or").

:Cry::Cry::Cry:

...Microcat

Also good for looking up parts. Send PM & will reply with location details.

Mike is off on holidays till next week.