Yes that side.Do you mean this side .
It seems like this side does not have any valves fitted either ..
I fully agree with your last sentence.There seems to have been an interim version of the BBY, which has the BBY individual coil packs, but not the BBY non return fuel system. I formed this view from there being a fuel rail, with the return circuit, listed as being AUA and BBY compatible, and a version 2 of the crankshaft sensor, which is square, to fit the AUA housing, and is also listed as AUA and BBY compatible. There's a round crankshaft sensor too, but that is BBY only.
I guess Audi had a lot of AUA parts that they wanted to use up.
The relavance of all that to the @Azim car, is that by fitting the original fuel rail, with the return circuit, to his car, the fuel system will match that interim BBY build.
I will do when I finish work today .In order to summarize your information @Azim would it be possible for you to list all facts in ONE post.
E.g. state:
The exact timeline and order between events: when did you buy it, when was the engine swapped, when did the starting problem occur (if several ocassions state all), when occured the rough idling.
Tech facts: What is your vehicle VIN (mask the last two digits for privacy).
What is known about the exchange engine (e.g. you mention it was from a 2001 car?)
And could you clarify: If the car was running recently exactly what has happened since then assuming it does not start now?
The whole thread is a long read, but everything is in there.In order to summarize your information @Azim would it be possible for you to list all facts in ONE post.
E.g. state:
The exact timeline and order between events: when did you buy it, when was the engine swapped, when did the starting problem occur (if several ocassions state all), when occured the rough idling.
Tech facts: What is your vehicle VIN (mask the last two digits for privacy).
What is known about the exchange engine (e.g. you mention it was from a 2001 car?)
And could you clarify: If the car was running recently exactly what has happened since then assuming it does not start now?
Yes Mac, I have read the whole thread several times and exactly that lead to the suggestion to summarize it so it will be easier to get the whole picture (and possible understand where any info gaps exist). Lets await it if not only to assure the knowledge base is sound.The whole thread is a long read, but everything is in there.
TO save you a long read, in summary, it was bought, by @Azim as a non runner, it started, but was rough, and the original owner, who instigated the engine swap, (BBY to AUA), gave up on it. That's where we started.
It took a while to understand that it wasn't just a case of a good engine with a problem. And then, fully appreciate what we had.
By analysing the differences between AUA and BBY, firstly ignition systems, particularly the crankshaft sensors and now the fuel systems, we are getting close to practical plan I think/hope
Mac.
After changing all the spark plugs to what im lead to believe are suitable replacement new ones .The whole thread is a long read, but everything is in there.
TO save you a long read, in summary, it was bought, by @Azim as a non runner, it started, but was rough, and the original owner, who instigated the engine swap, (BBY to AUA), gave up on it. That's where we started.
It took a while to understand that it wasn't just a case of a good engine with a problem. And then, fully appreciate what we had.
By analysing the differences between AUA and BBY, firstly ignition systems, particularly the crankshaft sensors and now the fuel systems, we are getting close to practical plan I think/hope
Mac.
There's no doubt in my mind that the fuel rail, and associated fuel and vacuum connections need to be returned to AUA standard.
Once that's done, we'll have a simpler situation to deal with.
Mac.
The car was built as a BBY, no question, complete with BBY ECU and looms.Well, I think if the fuel rail would be changed from what currently appears to be of BBY type it will not match the car since the car is built as a BBY car, VIN to be confirmed though.
Will i retain the individual coil packsThere's no doubt in my mind that the fuel rail, and associated fuel and vacuum connections need to be returned to AUA standard.
Once that's done, we'll have a simpler situation to deal with.
Mac.
To be clear, I mean remove the existing fuel rail assembly completely, and replace it with an AUA assembly, complete with fuel and vacuum lines.
Mac.
I will do when I finish work today .
Yes, excellent to collect facts.1 Details of my cars with BBY engine
2 Details of the replacement AUA replacement .
Hope this helps
Yes, clearly recommended. Keep it as much BBY as possible as this is how the car was built in the first place.Will i retain the individual coil packs
By fitting the AUA fuel system, your engine will be, apart from the ignition system, a standard AUA. The ignition system has to stay BBY, (individual coil packs), as rewiring, to accommodate an AUA ECU is not, practically, possible.Should I not be aiming to make the car the same as the late AUA / early BBY cross over Or dare I say it , get a fully BBY engine replacement ?.
I have a feeling progress can be best achieved with more info, see post 104.Should I not be aiming to make the car the same as the late AUA / early BBY cross over Or dare I say it , get a fully BBY engine replacement ?.
The question I have is what is the difference between the head and block of a BBY engine and a AUA engine .I have a feeling progress can be best achieved with more info, see post 104.
(But generally I would keep everything BBY-like as it seems to be now, except for the block/head).
Actually, this is wrong, as the BBY fuel system has no provision for the return to tank line, which the AUA fuel system requires.By fitting the AUA fuel system, your engine will be, apart from the ignition system, a standard AUA. The ignition system has to stay BBY, (individual coil packs), as rewiring, to accommodate an AUA ECU is not, practically, possible.
An AUA fuel rail assembly should be obtainable for around £50 - 60.
Put a wanted ad in The Market Place.
Mac.