Corrado vr6 159.9hp??? What is the problem??? Help!!!

[Sevastian_Vr6]

Hello all, I have a corrado 2.9 vr6 engine revised recently (7500km), kolbenshmidt pistons, bearings king, victor reinz gaskets, recently I changed the servo pump, spark plugs, spark plug wires, the lambda sensor, hydraulic tappets, hydraulic chain tensioner, and more and more but i don't remember now. I made the compression test and the result was 12.5 bar on all cylinders(+/- 0.3bar). The only change I made was remove ​​the catalyst and silencers and relaced with pipe 60mm, today I did a dyno texts and the result was 159.9hp. I also checked the timing and it's all right. You ideea what should I check again, or what the problem is? Sorry for my poor English. thanks

I'd like to attach the dyno file but i don't know how.

[NoCYet]

I don't think there's anything wrong with that if thats wheel HP, if you figure a 15% drivetrain loss that would put you around 161. You are within 1.1 of that. Which is well inside the margin of error of a dyno.

[Corrado9A]

I am going to assume is not WHP as in europe most dynos quote just HP.

One easy check is a dead cam sensor.

[Sevastian_Vr6]

I don't think there's anything wrong with that if thats wheel HP, if you figure a 15% drivetrain loss that would put you around 161. You are within 1.1 of that. Which is well inside the margin of error of a dyno.

The wheel HP is 126.5.

[vdubCorrado]

Edit for response. And statement is not valid.

[DUBZAK]

The wheel HP is 126.5.

Need more Information:
Coilpack or Distributor VR6?
Were ALL ignition Components replaced with Rebuild? Plugs, Wires, Ignition Coil/Cap/Rotor or Coilpack
AIT Sensor
Blue Coolant Temp Sensor
ECM Itself.

I had a similar issue with a RETARDED VR6 Dyno of 119WHP. Replaced Coolant Temp Sensor and I made 134WHP. Drove back from MD and Replaced the ISV and O2 sensor, WHAM car came back to life.

ALL the items I listed are Suspect.

[Sevastian_Vr6]

With distributor. If these sensors do not work should not list the errors when I make a diagnosis?

[DUBZAK]

With distributor. If these sensors do not work should not list the errors when I make a diagnosis?

Don't just start throwing sensors at it, check Ignition Components and ISV First.

[Sevastian_Vr6]

Don't just start throwing sensors at it, check Ignition Components and ISV First.

The spark plugs are new, wires are new, so I checked the distributor and coil. I will look on elsawin to see how.

But what really makes the ISV, I thought only regulates the mines!?

I noticed that I have a lean mixture because the spark plugs are white and also the exhaust, may be perhaps the fact that I made the cylinders from 2.8 to 2.9 and still have control of the 2.8?

Thanks in advance!

[TheBurninator]

What codes do you pull when you scan it?

[Sevastian_Vr6]

What codes do you pull when you scan it?

VAG-COM Version: Release 409.1-US


Chassis Type: 50 - VW Corrado
Scan: 01,02,03,08,15,25

-------------------------------------------------------------------------------
Address 01: Engine
Controller: 021 906 258 B
Component: MOTOR PMC 1
Coding: 0261200494
Shop #: 1267357207
No fault code found.
Readiness: N/A

-------------------------------------------------------------------------------
Address 03: ABS Brakes
Controller:
Note: Excessive Comm Errors


The only error that comes up is the vehicle speed sensor, can be a problem? The odometer works fine.

[Sevastian_Vr6]

Why I can't post images? I like to post some screenshoots with the measure blocks. Thanks

[dannyace]

Why I can't post images? I like to post some screenshoots with the measure blocks. Thanks

You have to host the photos. Upload them to a site like photobucket, copy the link they create for you, then post here using the image tags.

[Sevastian_Vr6]

Do you think that value are ok?

[Sevastian_Vr6]

http://imageshack.us/photo/my-images/171/meas1.png/

[Sevastian_Vr6]

Uploaded with ImageShack.us

[Sevastian_Vr6]

[TheBurninator]

The only error that comes up is the vehicle speed sensor, can be a problem? The odometer works fine.

If the VSS is not communicating with the ECU there will be issues with the engine cutting out in higher gears.

[Sevastian_Vr6]

If the VSS is not communicating with the ECU there will be issues with the engine cutting out in higher gears.

I did not understand, can it be that I lose 30 horsepower because the vss does not work?

[Sevastian_Vr6]

Problem found, camshafts of 2.8l. 2.8l engine control unit. The car now is around 175cv or maybe a little bit more. Thanks all.