Audi AEL no power

[prj]

Check that the pedal actually goes all the way to the floor.
I don't remember the measuring blocks off the top of my head for the accelerator pedal %.

Make sure there is not something stuck under the pedal, like a floor mat or anything else like that.

If it definitely goes 100% to the floor, then you need a new set of chips.
Well you need a set regardless, as 45mg/str IQ is stock. I don't know what you bought from ebay...

[bn-01-wso]

This is the log with 001, 008 and 011 with 3rd gear

[bn-01-wso]

Someone messed up the chip.
It has less requested boost and less IQ than stock.
From the logs, the turbo is boosting as it should. MAF reading seems on point.

Make a log of 008 011. 008 is very important.

I can send you some chips if you like. Properly remapped cars go up to 70mg/str and 2300mbar.

They are some ebay chips. Car ran fine when they were installed. I will make a log with 008 and 011. I will give you a pm on your chips. Thanks

[prj]

Someone messed up the chip.
It has less requested boost and less IQ than stock.
From the logs, the turbo is boosting as it should. MAF reading seems on point.

Make a log of 008 011. 008 is very important.

I can send you some chips if you like. Properly remapped cars go up to 70mg/str and 2300mbar.

[bn-01-wso]

Do you know what it's supposed to boost to?

I thought it should be simmilar to the requested value. At 1858rpm i have 1275mbar and the ecu says it should have 1805mbar. I havent tested the car when it was running right so i dont know if a good working car would achieve that requested boost value. Maybe this is how this turbos boost. I dont really know. I saw you also have an AEL. What is your boost values like?

[bn-01-wso]

And what about injection quantity ? When engine have 90 degrees temperature.


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I tested alot of IQ values 1.5, 2.5, 3, 3.5, 5 etc. Same story just a small difference in cold starts.

[bn-01-wso]

My reading of your logs show requested and actual boost are broadly similar so boost isn't the issue. Is it Smokey?

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It doesn't smoke. When it worked fine at 2000+rpm it felt more alive. You could feel to turbo kicking in.

[bn-01-wso]

test the F***ing wastegate

I f***ing tested it. Removed it form turbo housing and see if its blocked, then tested the valve with fluid and see if it seals right. All seems to be right.

[quattromnc]

After replying earlier in this thread, I had a niggling feeling I'd seen this issue in the past, here's a post I replied to almost 6 years ago on Audifans.net!

http://www.audifans.net/ftopicp-228990.html

Your figures match up precisely to what was discussed in the Audifans post, as AndyP thought it should boost to around 0.8-9 bar, the ECU readings include normal atmospheric pressure which dependant on weather is normaly 1.0bar or 1000mbar.

I'm assuming the two columns in your spreadsheet quoting boost pressures are, requested on the left, actual on the right. At low revs the boost pressure is slow to respond (lag) but then it fires up in to life as the RPM's climb, and from 2000rpm upwards the boost kicks in. So, having reviewed this, whatever your problem is, it doesn't seem to be boost pressure.

Where to go from here? Assuming we've ruled out boost pressure lets look at what could be causing this...

Fuel delivery,
Combustion,
Exhaust blockage,
Transmission or brake drag.

The first two can be verified by the Lambda reading, I'm not sure what you should get on that, maybe someone else could shed some light, but either way, if your engine doesn't burn right those numbers should be out. Have you checked injectors? Maybe worth checking compression again, I know you've not long had it checked but worth doing again IMHO.
Exhaust blockage self explanatory, remove the sections and inspect, if there is a blockage I doubt it will be a complete blockage as it does get full boost.
Last thing I can think of just now is that the engine is making all the power it should but it either isn't being delivered properly. lift each wheel and check how they turn individually checking for any binding of brakes or anything else. Do you have an auto or manual gearbox? when was the last time fluds were checked? On that note, when was the last engine oil change?

Lots to consider there, hopefully thats you a little closer to a solution.

[Jukums]

And what about injection quantity ? When engine have 90 degrees temperature.


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[diesel des]

My reading of your logs show requested and actual boost are broadly similar so boost isn't the issue. Is it Smokey?

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[AndyP]

Do you know what it's supposed to boost to?

[ManiacuV6]

test the F***ing wastegate

[bn-01-wso]

Could it be a problem with the boost control solenoid? I couldnt find a new one to see if it makes any difference

[bn-01-wso]

I changed the turbo and is running exactly the same. Before that i removed the old turbo to see if the wastegate valve is blocked or something. Valve was ok although the spring was pretty soft. I dont know how much pressure it should hold though.