Rebuilt but No Power

[un1ko]

So it’s been a week that I finished some what of a rebuilt on a 2001 Audi A4 AWM 1.8T Quattro Tiptronic – I put a new cylinder head, AEB pistons and rods with new rings, new rod bearings and a new timing belt. The car runs good, with no problems. The only thing is that it doesn’t have any power, when I’m at a full stop and I press the on the gas, it barly takes off. I’m not sure it’s normal until the engine breaks in.

I have another A4, even though it’s a 5spd, but it’s a 98 A4 1.8T AEB Quattro and it has a lot more pick up and it has over 150k.

Although 2-3 days ago I did get a check engine light – P0411 - Secondary Air Injection / Incorrect Flow , I did some research and I didn’t see that this error code causes loss of power. By the way the seconday pump is really loud, not use to that.

I saw some posts and I’m going to check for any leaks on the vacuum hoses, clean the combi valve. But if I don’t see anything wrong I’m going to do this http://uk-mkivs.net/forums/t/141240.aspx


Any ideas why I don’t have any power? The car did have over 200k – my thoughts is maybe the cat is bad and clogged up. Maybe I should switch it with a test pipe? I know the turbo is god because I switched the turbos from my other A4 and put a K04

http://i94.photobucket.com/albums/l109/un1ko/photo3.jpg

[Seerlah]

I'm taking it you honed the cylinder walls with new pistons rings? Check your compression.

[un1ko]

I'm taking it you honed the cylinder walls with new pistons rings? Check your compression.

Yep I honed the cylinder walls and cleaned it, but it was the first time I ever did this type of work. So I hope I did it right. I used a flex hone with a 180 grid. I didn't check the compression yet because the attachment from my compression tool got stuck on the old cylinder head. This weekend I have to figure out how to get it out.

[Seerlah]

Silicone Carbide Abrasive 180grit

[un1ko]

Silicone Carbide Abrasive 180grit

Was it ok to use 180 grit? This is what it looked like

http://images.drillspot.com/pimages/7442/744277_300.jpg

[Seerlah]

You are supposed to use 180 grit, but it must be silicone carbide abrasive.

[un1ko]

You are supposed to use 180 grit, but it must be silicone carbide abrasive.

Oh I didn't know that, but this is the one I got and it saids - Brush Research FLEX-HONE Cylinder Hone, GBD Series, Silicon Carbide Abrasive, 3-1/4" (83 mm) Diameter, 180 Grit Size - So I hope it wasn't that big of a mistake. Thanks for your help!

http://industrial.beanworthy.com/Brush-Research-FLEXHONE-Cylinder-Hone-GBD/A/B002XUL1JY.htm

[Seerlah]

That's the correct one.

[un1ko]

I'm taking it you honed the cylinder walls with new pistons rings? Check your compression.

So I did the compression and it's not good.

Cylinder 1 - 160
Cylinder 2 - 130
Cylinder 3 - 0
Cylinder 4 - 140

What do I do know? Do I have to restart all over? This really blows

[un1ko]

Created a new post since it's different then just not having power now

http://www.audizine.com/forum/showthread.php/486135-Need-guidance-No-compression-in-cylinder-3?p=7599773#post7599773