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Just aquired an AFM engine but no ecu, need advice |
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2435mick 
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Joined: 01 Feb 10 Location: proper n/w uk Status: Offline Points: 40 |
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 Topic: Just aquired an AFM engine but no ecu, need advicePosted: 07 May 10 at 21:17 |
Just aquired an AFM engine but no ecu, need adviceJust gained myself an AFN engine but
unfortunately no ECU.
Firstly, do I need to go down the route of finding an ECU or is it possible to simply change the fuel pump? (I have a mech pump of a N/A 1.9D) or, would a different pump be needed? If I need an ECU, what car would I need one from? |
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I didn't do it.....honest
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T3di
Vanorak 
Joined: 23 Aug 05 Location: Sheffield Status: Offline Points: 3099 |
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Posted: 07 May 10 at 21:40 |
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Basically the AFN is the beefed up 1.9 tdi of its era. It came on Audi A4 1.9 tdi (red eye) and some passats and galaxys/sharans. dunno about any golfs though. It has a vvt turbo and different injectors to its lesser brother the 1Z.
Probably most common on A4's.
Your pump won't have enough pressure/be compatible.
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2435mick
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Joined: 01 Feb 10 Location: proper n/w uk Status: Offline Points: 40 |
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Posted: 07 May 10 at 23:14 |
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any suggestions as to what to do next?
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I didn't do it.....honest
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T3di
Vanorak
Joined: 23 Aug 05 Location: Sheffield Status: Offline Points: 3099 |
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Posted: 07 May 10 at 23:24 |
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ecu and loom from a scrapper
 Lots of searching on here in the diesel upgrades section on tdi conversions, get clued up. |
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T3di
Vanorak
Joined: 23 Aug 05 Location: Sheffield Status: Offline Points: 3099 |
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Posted: 07 May 10 at 23:29 |
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Do you mean you just gained the engine, or bought the van with the engine?
Assuming you've just gained the engine, are you sure you want to put it in your, what is it? camper? If so, you need to be aware of the costs ahead of you and even more so if you pay someone else. With tdi 's you must get a long legged gearbox fitted, AAP at the least and these are thin on the ground and ££ now. Plus there is much wiring and fitting esp as you have the AFN wich requires special engine mount near the turbo. Not a project to be taken lightly. Edited by T3di - 07 May 10 at 23:30 |
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dougslug
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Joined: 05 May 10 Status: Offline Points: 30 |
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Posted: 08 May 10 at 08:52 |
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You can run this engine with a landrover pump, if it has a vnt turbo, then you need to find a way of manualy contolling this as well, there are numerous ways to do this from simple to complicated
If you go down the electronic route, try to match the ecu to the engine number, otherwise at least from a car that has the same turbo (vnt) I have run a ALH engine(latter type) sucsesfully with an AHF ecu, it did take some fiddling with changing connectors though. best also to do away with the immobiliser Gearbox is another issue, with a tdi engine, work out the max speed that you can do in top gear with your gearbox at 4500 rpm with a manual pump, less with elecroic, and ask yourself if you can live with it |
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2435mick
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Posted: 08 May 10 at 12:07 |
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I like the sound of a landy pump, i have good access to spares for discos, my downside is I don't have much exparience with diesels, petrols, no prob. Is a disco pump almost a bolt in converson?
Wiring etc ain't a problem. If I source an ECU do I need to get it matched to the engine (by VW as I read somewhere it would have to be 'plugged in to their system) how do you remove the immobiliser from the system? How do I identify a vnt turbo? Modified engine mounts ain't a problem Anyone point me in the right direction on here for info re wiring etc? |
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I didn't do it.....honest
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2435mick
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Posted: 08 May 10 at 12:09 |
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Forgot to add, my T3 is currently fitted with a 1.9N/A that has gone ga-ga, this runs through a 5 speed box.
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I didn't do it.....honest
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dougslug
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Posted: 08 May 10 at 16:46 |
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I like the sound of a landy pump, i have good access to spares for discos, my downside is I don't have much exparience with diesels, petrols, no prob. Is a disco pump almost a bolt in converson?
Yo need to enlarge the hole in the pump cradle, the disco pump nose is about 20mm larger diameter. Once fitted it will need timing, first undo the pipe to injector number one, turn the pump till it spurts diesel next bit done staticly at tdc, there is a small screw between the fuel lines on the pump take this out and you have access to the pump piston head, this needs to have mooved 1mm through its stroke at tdc. If I dont have access to a dial gauge, I push in a small screwdriver and do it by feel. Wiring etc ain't a problem. If I source an ECU do I need to get it matched to the engine (by VW as I read somewhere it would have to be 'plugged in to their system) how do you remove the immobiliser from the system? If you dont have the immo removed it will look for its two best friends before letting the engine start, namely the injection pump and the chip in the key (depending on year), if you change one of the friends then they will need introducing to the immo via vw dealer or vag.com software.....or loose the immo via one of the chipping services. How do I identify a vnt turbo? I'm not up on which car has what. a vnt turbo has variable vanes rather than a dump valve, best plan, get the number off it and google it Modified engine mounts ain't a problem Anyone point me in the right direction on here for info re wiring etc? best get a loom of a car with the same turbo and age, you will also need the throttle peddal, inlet manifold sensors including the airflow meter and quite alot more if you keep the immo you need the dash (clocks) and key reader coil,wiring is vehicle specific, so no one stop solution [/QUOTE] |
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busbuddy
Vanorak
Joined: 22 Jul 06 Location: Leicester Status: Offline Points: 2068 |
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Posted: 08 May 10 at 19:11 |
I just fitted an AHU code ecu/imm/key to my 1Z code engine to cure an issue I had, works fine
fit the immobiliser, its easy and makes it harder to steal
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2435mick
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Posted: 08 May 10 at 19:14 |
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Thank you Dougslug, your info is most helpful
 If I go down the route of the disco pump, generally fitting it wont be a problem but i can think of one or two issues nameley around timing.Can I assume that when timing the pump the crank/cam will be at TDC as per normal timing Which toothed sprocket will I need, Disco or VW. Is the dump valve a thing attached to the end of a flexi type metal pipe, my engine has one of these fitted |
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I didn't do it.....honest
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2435mick
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Posted: 08 May 10 at 19:19 |
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Cheers Busbuddy, your info is much appreciated, from what you say, If the ecu is from the same type of car/engine combination can i assume that there will be no re-programming issues?
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I didn't do it.....honest
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dougslug
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Posted: 08 May 10 at 19:25 |
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I haven't looked at the disco pully, it may work!
Vw one definitely does, just pull off the hub and fit your old one you will also need to elongate the fixing holes in the disco pump so as to allow it to rotate or slot the cradle to alow the same or get an ALH sprocket that already has adjusting slots in it I think the pipe your talking about is the Exahaust recerculating pipe going to the inlet manifold |
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2435mick
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Posted: 08 May 10 at 19:36 |
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Cheers Dougslug, PM sent via B/works. There is a device on the turbo which appears to be controlled by a vaccuum, what is this device?
I have some photos f the engine , would it help if you saw them? |
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I didn't do it.....honest
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busbuddy
Vanorak
Joined: 22 Jul 06 Location: Leicester Status: Offline Points: 2068 |
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Posted: 08 May 10 at 22:22 |
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only have to program if replacing one of the key/imm/ecu items, the pumps are usually plug and play
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famous phil
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Posted: 18 May 10 at 13:17 |
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Hi if your thinking of using a disco pump its pulley will be no good - its a larger diameter ,the pump Governor will almost certainly need changing the injectors will probably need replacing - the ones in the engine you have work at about 300bar,and the pump mounting bracket needs machining , so the hybrid you'll end up with is an engine not quite as refined as the earlier TDi's probably at great expense
if trying to get it running with an ECU I'd have thought you'd need from another car key loom ECU immobiliser + fuel Pump unless immobiliser is to be removed ( anyone know what the cost is to have imo removed ) I've been building MTDi pumps to replace the VP37 type pumps fitted to numerous vehicles including ones with VAG engines , as for the turbo it may be possible to use an early TDi type or for best results use the one fitted with vane control linked to throttle and boost like in the pic below 
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Prototype automotive engineering design and development
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rolo
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Joined: 17 Oct 08 Location: burnley Status: Offline Points: 519 |
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Posted: 18 May 10 at 22:04 |
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AFN injectors work at 300 bar??
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the last one
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mrhutch
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the ginger princess Joined: 21 Aug 07 Location: Herefordshire Status: Offline Points: 5147 |
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Posted: 18 May 10 at 23:52 |
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^^^ surely not??
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T3 1981 Westy Vanagon - thinks lubricant is a fuel
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T3di
Vanorak
Joined: 23 Aug 05 Location: Sheffield Status: Offline Points: 3099 |
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Posted: 19 May 10 at 07:28 |
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yes, its true
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mrhutch
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the ginger princess Joined: 21 Aug 07 Location: Herefordshire Status: Offline Points: 5147 |
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Posted: 19 May 10 at 07:41 |
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blimey! I didn't know that.. not far off double a TD then
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T3 1981 Westy Vanagon - thinks lubricant is a fuel
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2435mick wrote: