Golf 5 MAP sensor - issues
-
- Enlisted
- Posts: 46
- Registered for: 6 years 11 months
Golf 5 MAP sensor - issues
Hi guys- yet another problematic map sensor - just had my map sensor replaced less than 9 months ago with about 5000kms since then and guess what ?! - car Jerks and no boost once the car heats up - halfway on the temperature gauge - cool the car down overnight - started up early in the morning and car runs fine until half way again on the temp gauge and the no boost - then ran vag com - engine faults given manifold pressure boost - first intermitten then signal implausible and then signal exceeded and then signal to lower - vice versa - cleared all codes (while car was hot) error came back as manifold pressure boost- so immediately swapped old map sensor - hooked up vag com - cleared all codes - ran full diagnostic again and no errors found- started the car - drove until car heated up to halfway on the temperature gauge again and car lost boost again!!!
Ran vag com while the car was hot again - error manifold pressure boost - same errors as above
This time what I did I put the previous sensor which was out of the car - left it in the fridge for 5 minutes and then replugged whIle the car was hot and ran vag com and cleared all old errors - ran a full diagnostic on the car and whaaalaa - all errors cleared .
My question is would a map sensor be faulty when it heats up or could it be my wiring but NOTE what I have explained above is a process of elimination to prove that the harness wasn't the cause.
Any advice on way forward ????
Ran vag com while the car was hot again - error manifold pressure boost - same errors as above
This time what I did I put the previous sensor which was out of the car - left it in the fridge for 5 minutes and then replugged whIle the car was hot and ran vag com and cleared all old errors - ran a full diagnostic on the car and whaaalaa - all errors cleared .
My question is would a map sensor be faulty when it heats up or could it be my wiring but NOTE what I have explained above is a process of elimination to prove that the harness wasn't the cause.
Any advice on way forward ????
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
Re: Golf 5 MAP sensor - issues
Did you buy OE or aftermarket.
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.
'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.
-
- Enlisted
- Posts: 46
- Registered for: 6 years 11 months
Re: Golf 5 MAP sensor - issues
Original ' OE
-
- Enlisted
- Posts: 46
- Registered for: 6 years 11 months
Re: Golf 5 MAP sensor - issues
Should I post a pic of both devices?
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
Re: Golf 5 MAP sensor - issues
Then perhaps you have a contamination issue?. lots of oil in intake pipes?.
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.
'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.
-
- Enlisted
- Posts: 46
- Registered for: 6 years 11 months
Re: Golf 5 MAP sensor - issues
What's the best way to check that ?
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
Re: Golf 5 MAP sensor - issues
Pull the boost pipe where it sits the lowest and see how much oil comes out.
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.
'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.
-
- Enlisted
- Posts: 46
- Registered for: 6 years 11 months
Re: Golf 5 MAP sensor - issues
Okay I'm back - have removed and cleaned all pipes- there was oil in the pipes which I removed - reset everything - and still the same issue - could the turbo be going?
Sent from my SM-G930F using Tapatalk
Sent from my SM-G930F using Tapatalk
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
Re: Golf 5 MAP sensor - issues
how much oil. If lots then yes you can have a turbo issue.
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.
'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.
-
- Enlisted
- Posts: 46
- Registered for: 6 years 11 months
Re: Golf 5 MAP sensor - issues
If I gathered all the oil which was there i'd say it would be about two table spoons of oil which I removed from the plastic pipe running to the throttle body and the bottom rubber pipe joining the intercooler.
I've read somewhere that a oil catch can be fitted at the bottom end of the manifold pipe. Any idea if this is a solution?
One more question, will my pcv valve (if stuffed) cause oil in my intercooler?
I've read somewhere that a oil catch can be fitted at the bottom end of the manifold pipe. Any idea if this is a solution?
One more question, will my pcv valve (if stuffed) cause oil in my intercooler?
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
Re: Golf 5 MAP sensor - issues
no two tablespoons are not a reason to worry and not causing the issue.
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.
'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.
-
- Enlisted
- Posts: 46
- Registered for: 6 years 11 months
Re: Golf 5 MAP sensor - issues
Ok - will go to goldwagen tomorrow with the OE map sensor- hopefully they have the right one and take it from there - believe it goes for R495 +/-
Most of you would believe that buying the OE part from VW would be the better option but note I did 9 months ago and that's now not functional.
I guess when it comes to electrical no one guarantees you anything...
Just wondering- has anyone ever fitted a catch can to a MK5 gti ?
Il keep you all posted after fitting the new map sensor...Crossing fingers GW has the right one and it actually solves the problem
Most of you would believe that buying the OE part from VW would be the better option but note I did 9 months ago and that's now not functional.
I guess when it comes to electrical no one guarantees you anything...
Just wondering- has anyone ever fitted a catch can to a MK5 gti ?
Il keep you all posted after fitting the new map sensor...Crossing fingers GW has the right one and it actually solves the problem