With the advent of the vRS, which produces 130 bhp, I wonder if replacing the chip of the standard tdi with the vRS chip would work?

I live in Spain & there is no known re-mapping agent nearer than Barcelona - 600 km from where I live!

Welcome to the site!

Wish I was in sunny Spain! I don't reckon the chip from a vRS would work.

You could always mail your ECU to Jabba in the UK!

What trust to the Spanish "Post" system - you must be joking :infinity:

Hullo there, welcome!

I reckon swapping the ECUs wouldn't do much. A lot of the extra power of the vRS comes from the engine components, not the ECU telling the engine to be more powerful (if that makes sense)

You'd be much better off sending your ECU to Jabba over here for a serial port remap which will give you a little bit more juice than the vRS as standard.

PS: If your nearest tuner is 600km, thats only just under 400 miles, and I'm going to travel 300 miles to get my car tuned up in 4 weeks time. If I were you, and this company in Barcelona gives good reliable results, I'd seriously make a day trip out there and get it done in Spain.

The regular Fabia TDi (unless its a later 100 bhp model) is a completely different engine to the vRS.

The vRS uses the VW PD engine (Pump Duse) which is a common rail diesel which doesnt have an injection pump.

So the ECU's would be completely different.

The furby Tdi has only ever had the 100pd engine and neither the 130pd or the 100 are common rail.

Sorry to be pedantic!

The furby Tdi has only ever had the 100pd engine and neither the 130pd or the 100 are common rail.

Sorry to be pedantic!

they are in a way common rail, there is no conventional injector pump the pumps (four of them) are located at the top of the injectors and are worked of the cam producing 200bar this is what gives the pd engine such great tourque curves (not exactly a cure more a straight line).

Define common rail then?

All the PD injectors are fed by the same internal drilling in the cylinder head, I thought this was refered to as a common rail.

Or at least Skoda refer it as that on thier diesel training course.

And I thought early Fabia's had the injection pump diesel but could well be mistaken.

Define common rail then?

All the PD injectors are fed by the same internal drilling in the cylinder head' date=' I thought this was refered to as a common rail.

Or at least Skoda refer it as that on thier diesel training course.

And I thought early Fabia's had the injection pump diesel but could well be mistaken.[/quote']

injectors are all fed by same line so in theory is common rail but skoda call it pd all fabia tdi's are pd engines.

I beg to differ k,

In a way the PD system is similar to common rail.

Common rail holds the fuel under pressure in a (common rail) tube and squirts it into the cylinders via electronic injectors.

PD acts in a similar way except there is no holding tube and each injector is a mini pump and injector in one.

Then id be right in saying Skoda were using PD technology before the rest of the VAG group, makes sense as the Fabia was out before the same platform Ibiza and Polo.

And Audi only used the 1.4 PD in the A2 at the time.

I beg to differ k' date='

In a way the PD system is [i']similar[/i] to common rail.

Common rail holds the fuel under pressure in a (common rail) tube and squirts it into the cylinders via electronic injectors.

PD acts in a similar way except there is no holding tube and each injector is a mini pump and injector in one.

But the PD injector is opened electronically, and the 'holding tube' is built into the head.

Then id be right in saying Skoda were using PD technology before the rest of the VAG group' date=' makes sense as the Fabia was out before the same platform Ibiza and Polo.

And Audi only used the 1.4 PD in the A2 at the time.[/quote']

the diesel engines that were in the early (pre tdi fabia's) were the 1.9 sdi (non turbo) (non pd) so i don't think there were the first in group but i stand corrected!

I think the PD115 engine was out across the VAG group a while before the Fabia came out.

Also the 1.4 tdi was around in the Polo/Lupo?

Is there definitely a holding tube built into the head? I cant see why a holding tube would be necessary on a PD engine as each injector is able to pump its own fuel.

edited to say: 1,000 posts !!

btw "pd" engines are old technology daihatsu have been using these for years in there sooty vans

A PD Injector

The cam rotating pushes down on the rocker, this pushes the fuel downwards into the high pressure chamber. When the solenoid activates fuel enters the fuel line down the the nozzle and lifts the first spring giving the pre combustion spray, pressure then builds up further and releases a larger delivery.

Pre break off pressure is about 180 bar and main break pressure is 300 bar.

Pressure inside the injector rises to 2050 bar!!!

Yep, the TDI (minus turbo, PD and even a few CC!) has its roots back in the early 1980s!

I'll shut up now... :ignore:

btw "pd" engines are old technology daihatsu have been using these for years in there sooty vans

PD engines have been used commercially in some trucks and boats for about 20 years in one form or another.