2.1 TD - Bosch electronic pump swap: opinions / info please
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- Doggy
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2.1 TD - Bosch electronic pump swap: opinions / info please
Anybody know how practical it might be to fit the electronically controlled pump / ecu from a late 1.9TD to a car with a 2.1 engine, if you have both cars to play with and don't mind canabalising the 1.9? (Working on the assumption you have both vehicles up & running to start with).
I'm not put off by the electrical complexity, if sufficient information is 'gettable'.
The object is to build a veg-powered 2.1 exec estate using my bro's 1.9 to donate the necessary stuff. Probably doesn't add up in economic terms, but could be an interesting project.
I'm not put off by the electrical complexity, if sufficient information is 'gettable'.
The object is to build a veg-powered 2.1 exec estate using my bro's 1.9 to donate the necessary stuff. Probably doesn't add up in economic terms, but could be an interesting project.
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
KrisB knows everything possible about this and has done these swaps - I'm sure he'll be along soon, or send him a PM/email (or http://krisb.co.uk).

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- Captain Jack
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
I remember a thread here from a few years ago of a guy doing just this swap.
2003 - 2008: 1998 Peugeot 406 2.1 TD 110bhp LX Saloon
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp
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2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp

2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
Just use the fully mechanical pump from the 306, not the semi ecu unit from the 406.
Yours is the only other 2.1 exec estate I've heard of, they're rare as hell.
Yours is the only other 2.1 exec estate I've heard of, they're rare as hell.
2.1td exec estate.
- Doggy
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
Wanted to avoid that because the 'semi ecu' one works so much better and we've already got it allStevieboyTD wrote:Just use the fully mechanical pump from the 306, not the semi ecu unit from the 406.
Even rarer than that, as we haven't tracked one down yet, but I have seen a few for sale in the last couple of years................Yours is the only other 2.1 exec estate I've heard of, they're rare as hell.
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
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- 3.0 24v
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
Ah, so you're putting a 2.1 into a 1.9 based car?
If not you need to swap all the engine loom and ecu stuff as the 2.1 ecu is intended for the lucas-epic pump, totally different workings to the semi ecu bosch.
If not you need to swap all the engine loom and ecu stuff as the 2.1 ecu is intended for the lucas-epic pump, totally different workings to the semi ecu bosch.
2.1td exec estate.
- Doggy
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
No, just thinking of converting a 2.1 to use the 1.9's pump and anything else necessary as we have the whole car....StevieboyTD wrote:Ah, so you're putting a 2.1 into a 1.9 based car?
Yes. I'm more or less expecting to, just wondering if it's possibe to find all the diagrams etc?If not you need to swap all the engine loom and ecu stuff as the 2.1 ecu is intended for the lucas-epic pump, totally different workings to the semi ecu bosch.
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
Complete engine wiring swap should do it, including the ecu. Need to swap in the bosch injectors with lift sensor too.
2.1td exec estate.
- Bailes1992
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
Like Steve says.
Just remove the engine loom from the 1.9TD and directly fit it into the 2.1TD.
Then remove the pump/injectors from the 1.9TD and fit them to the 2.1.
Might be worth having a look for the fuel pulse while your at it for the trip computer?
Also while the pump is off you're going to have to remove the protective plate over the imoboliser cover in order to up the fueling.
Just remove the engine loom from the 1.9TD and directly fit it into the 2.1TD.
Then remove the pump/injectors from the 1.9TD and fit them to the 2.1.
Might be worth having a look for the fuel pulse while your at it for the trip computer?
Also while the pump is off you're going to have to remove the protective plate over the imoboliser cover in order to up the fueling.
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- Doggy
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
Couple of good points there, Sam, thank you.
I'm thinking I might have to swap the clocks to get a working tacho - does thay have implications for speedo accuracy?
Do you reckon this is the real deal, or an LX with a D9 exec interior? http://www.autotrader.co.uk/classified/ ... ?logcode=p
I'm thinking I might have to swap the clocks to get a working tacho - does thay have implications for speedo accuracy?
Do you reckon this is the real deal, or an LX with a D9 exec interior? http://www.autotrader.co.uk/classified/ ... ?logcode=p
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
- Bailes1992
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
There is no reason to have to do anything interior wise.
Everything should work like for like!
You just unplug the engine loom fromn the 1.9 and fit it straight to the 2.1.
I looked into doing this myself a few times when I had my TD.
Might be worth getting both engines out to do the pump and injector swap. Will give you pleanty of room for to swap the looms over.
Don't forget to label everything up as your unplugging it!
If you have the engine and gearbox out you might aswell do the clutch and engine mounts too. Shouldn't cost more than £200 and will make a massive difference!
And if you don't mind, if you do plan to do this conversion I could pop up for a day? Mainly to be nosey but I could lend a hand also
Everything should work like for like!
You just unplug the engine loom fromn the 1.9 and fit it straight to the 2.1.
I looked into doing this myself a few times when I had my TD.
Might be worth getting both engines out to do the pump and injector swap. Will give you pleanty of room for to swap the looms over.
Don't forget to label everything up as your unplugging it!
If you have the engine and gearbox out you might aswell do the clutch and engine mounts too. Shouldn't cost more than £200 and will make a massive difference!
And if you don't mind, if you do plan to do this conversion I could pop up for a day? Mainly to be nosey but I could lend a hand also

2020 BMW 520d MSport Touring My Daily
2017 Dacia Logan MCV 1.5DCi Laureate Wifes
1996 Land Rover Defender 90 County SW 300TDi My Toy
2003 Ford Mondeo ST220 3.0 V6 My Other Toy
2017 Dacia Logan MCV 1.5DCi Laureate Wifes
1996 Land Rover Defender 90 County SW 300TDi My Toy
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- Bailes1992
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
Also worth mentioning is get another max fuel screw. I managed to snap mine removing the imoboliser shield and it's highly likely you will too!
2020 BMW 520d MSport Touring My Daily
2017 Dacia Logan MCV 1.5DCi Laureate Wifes
1996 Land Rover Defender 90 County SW 300TDi My Toy
2003 Ford Mondeo ST220 3.0 V6 My Other Toy
2017 Dacia Logan MCV 1.5DCi Laureate Wifes
1996 Land Rover Defender 90 County SW 300TDi My Toy
2003 Ford Mondeo ST220 3.0 V6 My Other Toy
- Doggy
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
Good of you to offer, but don't hold your breath. I've got to talk my bro into it first and he's not known for his impulsiveness.Bailes1992 wrote:And if you don't mind, if you do plan to do this conversion I could pop up for a day? Mainly to be nosey but I could lend a hand also

2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
Run a grinder throug the small lump towards the back of the pump and push out the roll pin.Bailes1992 wrote:Also worth mentioning is get another max fuel screw. I managed to snap mine removing the imoboliser shield and it's highly likely you will too!
2.1td exec estate.
- Bailes1992
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Re: 2.1 TD - Bosch electronic pump swap: opinions / info ple
And you could always pop the 2.1TD engine bay loom and pump back on his old 406 and sell it on for a few hundred squids!
2020 BMW 520d MSport Touring My Daily
2017 Dacia Logan MCV 1.5DCi Laureate Wifes
1996 Land Rover Defender 90 County SW 300TDi My Toy
2003 Ford Mondeo ST220 3.0 V6 My Other Toy
2017 Dacia Logan MCV 1.5DCi Laureate Wifes
1996 Land Rover Defender 90 County SW 300TDi My Toy
2003 Ford Mondeo ST220 3.0 V6 My Other Toy