1.9TDi troubles

[Lee]

I am really suspecting the MAF so hopefully I will have a new one in my hands shortly. Luckily I have the cheapo MAF from the later engine.
Thanks for the input. Tape trick is interesting...but since I have a new one en route I will just replace it anyway.

[Skull]

Is it loud lee? Can you here the turbo? If you can - it is probably a boost leak.

Did you check the rubber hose I pointed at previously in the thread?

I'll take some pics asap.

Quick question: what do you mean with "hear". I san hear the turbo, like it is whitling. Is that a leak or what?

[Lee]

I can hear my turbo. Looking at the logs I did, it is understandable as I was running 2.8 bar peak. LOL! Strange though as it was still kicking out black smoke. I need to get the new WGFV in there and get the boost control plumbing looked at as mine looks wrong. THat boost explains the fault code though. Mihnea semed to think that the MAF readings from the logs were normal but I atill getting a new MAF.

Doug, you considered a catch tank mod to reduce the oil in the breather system? I think and Spink/Matinjs special coming along...ie 1 ltre oil bottle! Brilliant mod, well implemented IMHO. Got to look at the cost effective options.

[Lee]

Whistling turbo could eb a leak. Check those hoses Skull. Mine had a massive split in the same pipe Doug pointed out. Explains the source of all the oil in the engine bay. Too much oil vapour in the inlet for my liking though.

[audiman]

Those hoses split regulary on A4's and Passats. If you boost is OK, then the MAF is not at fault. 2.8bar???? even if thats 1.8bar boost. Then that is was too high. No wonder is whistles.

[Mihnea]

Lee, your boost can't be 2.8 Bar, it was 2.5 max, the MAP sensor is a 250kPa. Too high for that tiny turbo anyway... K03 upgrade???

[Doug_RS2]

What turbo is on these cars? And what turbos bolt straight onto these diesels?

[Mihnea]

Some tiny KKK thingie, dunno what exactly tho... IMHO you can fit a 1.9 130HP PD turbo+EM assembly but I'll have to double-check to make sure... but then it'll need injectors too, as more air only won't bring you a single more HP on a diesel...

diezal tooning pow(d)er

[audiman]

I think its a blower from a leave blower or something, its a bout the size of my fist

[Lee]

about 30mm inlet diameter!!! Tiny.

If there is only a 2.5bar MAP sensor, how come I had 2800 mbar on the VAG-COM logs. WTF? Where is the offset coming from?

So Mihnea, go figure which injectors I need and well do a 190bhp TDi Audi 80, LOL! Make them injector large enough so we can run NOS too.

[Mihnea]

2499 mBar absolute is the most boost you have in that log that you sent me!!!!! Look again dude When maxing out the MAP sensor you get 2560 mbar.

190Hp will never work on that clutch, it says bye bye at 140HP already, but if you get a real clutch and a real transmission in there, why not do 190HP?

[Lee]

I have lost it!! 2499 was the max. Doh!

Don't think my Sachs 6-puck sintered paddle clutch will suit the diesel? I think I should keep that one for the S2 anyway. Gonna need it soon! LOL.

[Skull]

The turbo is garret T2. Im not sure, i read somewhere its max output is 0.8 bar. i hope i am wrong.

[Lee]

Things are looking good. WGFV and MAF swapped.

THANK YOU BEN!! Got some bits this morning and things are improving.

Taken it out for a spin and she gets to 80mph a lot quicker than before (well it didn't before!!). Gonna do some logging now.

Still have a kind of surging on part throttle, as if it is the the TPS but it certainly is now drivable.