Mk5 GTI Power Loss

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Tallymk5gti
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Mk5 GTI Power Loss

Post by Tallymk5gti »

HELP NEEDED.
Any ideas on me mk5 golf gti .
Changed
Coil
Accel pedal
Throttle body
Fault codes

P0222 - Throttle angle sensor

P0123 - throttle position sensor to high

P02122 - accel position sensor to low

P0642 - sensor ref voltage A to low

P0698 - sensor ref voltage to low

It’s ok if I don’t boost it. Once I kick over 3000 revs especially in 3rd / 4thgear it either goes into limp mode, EPC-Enginemanagment and traction control lights come on and I lose power but still drive it OR completely packs in EPC and traction light but no revs undrivable. All I do is disconnect battery then it’s fine 🤔🤔

Please can any1 Advise. I unplugged the MAP Sensor and it was ok for a while, Ran better but its started cutting out again.. Im at my wits end :bang:
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Titleists
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Re: Mk5 GTI Power Loss

Post by Titleists »

Have you tested the battery itself?
VCDS changes done by me for a minimal fee

My ex rides:

2013 LHD Scirocco R
2011 Golf 6 GTI
Tallymk5gti
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Re: Mk5 GTI Power Loss

Post by Tallymk5gti »

Titleists wrote: Thu Apr 11, 2019 3:08 pm Have you tested the battery itself?
No ?? Didnt think it would be ?
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Titleists
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Re: Mk5 GTI Power Loss

Post by Titleists »

Dead batteries can cause all sorts of random errors.
VCDS changes done by me for a minimal fee

My ex rides:

2013 LHD Scirocco R
2011 Golf 6 GTI
Trishen94
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Re: Mk5 GTI Power Loss

Post by Trishen94 »

Also curious to know this sounds like a strange 1 to me also
Current :2008 S3 8P (panic mechanic +thanas) 227kw /309hp 473nm
viewtopic.php?f=11&t=217296

Ex :2008 mk5 gti ... really miss this car

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Tallymk5gti
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Re: Mk5 GTI Power Loss

Post by Tallymk5gti »

Titleists wrote: Thu Apr 11, 2019 3:27 pm Dead batteries can cause all sorts of random errors.
It starts up 1st time everytime
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Re: Mk5 GTI Power Loss

Post by panic-mechanic »

then dead throttle body or the control circuit in the management is fried.
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Re: Mk5 GTI Power Loss

Post by Tallymk5gti »

panic-mechanic wrote: Fri Apr 12, 2019 11:49 am then dead throttle body or the control circuit in the management is fried.
Ive replaced throttle body,
"control circuit in the management is fried" Whats this mean :eek:
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Re: Mk5 GTI Power Loss

Post by panic-mechanic »

Have you tried changing the pedal?
The control circuit fried means you need a new ecu. Just make sure the plug that goes into the throttle body is in good condition.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10

Perfect Power dealer. I do dyno tuning.
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Re: Mk5 GTI Power Loss

Post by Tallymk5gti »

panic-mechanic wrote: Mon Apr 15, 2019 6:13 am Have you tried changing the pedal?
The control circuit fried means you need a new ecu. Just make sure the plug that goes into the throttle body is in good condition.
Yeah ive replaced the Pedal
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Re: Mk5 GTI Power Loss

Post by panic-mechanic »

Then you have either a wiring issue or ECU.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10

Perfect Power dealer. I do dyno tuning.
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