1.6 FSI no idle and no throttle when hot!

Got a problem that i am trying to sort out, just rebuild my hpfp new O rings, and my pressure att 99 bar when driving and around 65 bar idle.
But once it is warm it start to lose idle and kinda just dies, then starts up fine but no throttle repsone (not allways) , only 2 codes i have is fuel pressure exceded , and intake maifold setpoint not reached

, stuff ive done to it
4 injectors
Intake flap sensor
Sparkplugs (NGK)
Coilpaks.
Orings to hpfp
, new fuel filter
And basic service
And clean throttle body and intake
Recalibrated throttle body
 

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I think you have two areas of concern. Fuel, and inlet flaps.
You need a scan with a VAG specific, and, very importantly, fsi compatible, scan tool. Personally, I recommend VCDS.
The display you've posted, (Group 140), shows that the ECU is requesting 97.92 bar, fuel rail pressure, but only 5.12 bar is being delivered.
The electric pump produces 3.8 bar, so the HPFP is suspect.
The Setpoint not reached, is flap mechanism related, and you'll find lots of info on here. Probably best to sort the fuel pressure out first.
Mac.
 
It's possible that the Setpoint not Reached, (P1031), fault only needs adaptation of the flap mechanism. This "calibrates" the mechanism, and position sensor, (potentiometer), to the ECU.
Mac.
 
To understand what the fuel pressure is, at various engine temperatures, speeds and loads, you need to log data, especially Group 140 over a varied drive.
The HPFP seems most likely to be the problem, but it could be the fuel pressure regulator allowing pressure to bypass through it, which would lower the rail pressure.
A log should show if the pressure regulating valve is ever active. The 0% in your display indicates it is not active, which is normal, as it would only activate if pressure from the HPFP is higher than required by the ECU.
We need log data to progress, I think.
Mac.
 
The intake flap thin need also to be recalibrated wich my cant do sadly, i am gonna replace orings on my orgininal to the car hpfp, that one worked better, after that i am gonna replace fuel pressure sender,
Picture was taking while the operating temperature was at 108°
, returning soon with more information,
 
The intake flap thin need also to be recalibrated wich my cant do sadly, i am gonna replace orings on my orgininal to the car hpfp, that one worked better, after that i am gonna replace fuel pressure sender,
Picture was taking while the operating temperature was at 108°
, returning soon with more information,
The inlet flaps shouldn’t be causing the symptoms you are experiencing, in my experience the car should idle fine regardless of if the flaps are siezed/actuator has failed. If the flaps have siezed closed then this is likely to cause a flat spot in power at around 3000rpm, but other than a lack of power at higher rpms the car should still be perfectly drivable.

I suspect you have two separate issues and as Mac has said, the symptoms you have are likely to be down to the fuel pressure code.
 
The intake flap thin need also to be recalibrated wich my cant do sadly, i am gonna replace orings on my orgininal to the car hpfp, that one worked better, after that i am gonna replace fuel pressure sender,
Picture was taking while the operating temperature was at 108°
, returning soon with more information,
Worth spending $99 on a registered copy of VCDS Lite.
Will more than pay for itself. You can't diagnose faulty FSI engines without it, or similar tool, that can read measuring blocks, and perform adaptations.
Mac.
 
Worth spending $99 on a registered copy of VCDS Lite.
Will more than pay for itself. You can't diagnose faulty FSI engines without it, or similar tool, that can read measuring blocks, and perform adaptations.
Mac.

Worth spending $99 on a registered copy of VCDS Lite.
Will more than pay for itself. You can't diagnose faulty FSI engines without it, or similar tool, that can read measuring blocks, and perform adaptations.
Mac.
Only thing find is rossteck sweden vcds and those cost 450 $ to 750 $ so where can i find 99$ 😂 han what do i need more then ?
 
Only thing find is rossteck sweden vcds and those cost 450 $ to 750 $ so where can i find 99$ 😂 han what do i need more then ?
You need a Windows laptop, any version, XP to 11.
A KKL lead, from ebay, under £10 in UK.
Download VCDS Lite from Ross-Tech website.
Install it, get it running, then register your laptop with Ross-Tech, cost $99.
For VAG cars upto 2005/2006, that's all you need. For the FSI, download the A2OC FSI label file, from this Forum, as Lite doesn't support the FSI as standard.
Mac.
 
Just a personal opinion.
VCDS Lite, using a generic KKL cable, is likely to be easier to set up on older versions of Windows.
My thought is that newer versions of Windows use later versions of the USB to Serial driver. Those later drivers are designed to be less tolerant of the clone chips used in many of the genetic KKL cables. So if you have an older laptop laying around, dust it off.
Best not to connect it to the Internet though.
Mac
 
Lucky i got the car for free frustrating FSI , So i need to take on my wizard clothes and start Buying stuff again, hopefully o can find an used laptor , only got an old macbook pro from like 2010 ,
 
Lucky i got the car for free frustrating FSI , So i need to take on my wizard clothes and start Buying stuff again, hopefully o can find an used laptor , only got an old macbook pro from like 2010 ,
Even as it is, that's a bargain.
You don't need to be a Wizard, just logical. (And an optimist).
Good luck.
Mac.
 
Hello ive changed the fuel pump and my fuel pressure is reading over 60 bar idle and when flooring it it peaks att 99 bar, and fuel pump bar is att 7 bar full throttle, and idle at 4 to 5 bar, so those part seem to work, if i delete the manifold code it bogs upp and missfires when flooring it ? , going kinda mad at the moment,
 
Hello ive changed the fuel pump and my fuel pressure is reading over 60 bar idle and when flooring it it peaks att 99 bar, and fuel pump bar is att 7 bar full throttle, and idle at 4 to 5 bar, so those part seem to work, if i delete the manifold code it bogs upp and missfires when flooring it ? , going kinda mad at the moment,
How are you measuring the fuel pressure?
Mac.
 
Tru block 140 and live data
That's good. Are the pressures you have posted, the Setpoint, Block 2; or the Actual, Block 3?
The electric pump is 3.8 Bar normally, and 5.8 Bar when the engine is hot, so 7.0 Bar is odd. The electric pump pressure must be measured with an ignition on, but engine not running.
Could you post the log of Group 140, starting with ignition on, engine off, then running?
Mac.
 
That's good. Are the pressures you have posted, the Setpoint, Block 2; or the Actual, Block 3?
The electric pump is 3.8 Bar normally, and 5.8 Bar when the engine is hot, so 7.0 Bar is odd. The electric pump pressure must be measured with an ignition on, but engine not running.
Could you post the log of Group 140, starting with ignition on, engine off, then running?
Mac.
Yess 5.8 bar, the sun was blocking my view haha, ill see what i can up load 😁
 
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