MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: jacobrownoly on June 20, 2017, 10:39:32 pm

Title: Intake Manifold Runner Control P3138 fault
Post by: jacobrownoly on June 20, 2017, 10:39:32 pm
Hello,

Give the car a scan on VAGcom tonight. The only fault that showed up was Intake Manifold Runner Control P3138

I had a wee look on here and did a reset on block 142 Intake Manifold runner from the ross-tech website. I then re-scanned the car and the fault was still there.

The car feels and goes great still but how can I fix this problem? what does this mean?

Thanks.
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: sanj on June 20, 2017, 11:28:31 pm
Had this problem on my old Edition 30 only thing after trying to get it calibrated was it came back again, there was a slight loss in power. Had to replace the entire part which is a pain in the backside to fit.
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: jacobrownoly on June 21, 2017, 12:09:30 am
Had this problem on my old Edition 30 only thing after trying to get it calibrated was it came back again, there was a slight loss in power. Had to replace the entire part which is a pain in the backside to fit.

Do you have a part number for it? Was it costly??

Thanks
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: jacobrownoly on June 21, 2017, 09:37:08 am
 Anyone else?
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: Paradox1 on June 21, 2017, 12:14:34 pm
A new manifold is about 400quid alone. Plus a new gasket and injector fitting kits. Then labour ontop of that if your not doing the work yourself
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: jacobrownoly on June 21, 2017, 01:32:40 pm
Is this gonna be the only way to fix this problem??
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: jacobrownoly on June 21, 2017, 01:37:06 pm
A new manifold is about 400quid alone. Plus a new gasket and injector fitting kits. Then labour ontop of that if your not doing the work yourself

Please correct me if I am wrong but I have found this on eBay, is this what I need?
http://m.ebay.co.uk/itm/292139232098?_trksid=p2385738.m2548.l4275&_mwBanner=1
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: Paradox1 on June 21, 2017, 03:05:46 pm
its looks correct but no telling that 1 isnt knackered too.
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: jacobrownoly on June 21, 2017, 06:13:42 pm
Just got quoted £360 from TPS :(

Would it be worth checking any sensors that may have thrown the fault up first??
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: Paradox1 on June 22, 2017, 12:13:56 pm
The sensors are part of the manifold (cant be removed)
usual problems is the sensors fail or the runner flaps fail and dont open properly.
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: Dan_FR on June 22, 2017, 01:59:27 pm
That fault code could be caused by the motor, the linkage or the actual runner flap assembly itself.... A new manifold MAY NOT fix the issue

Fit an RFD, bin off the motor.... job done and headache gone permanently....  :signLOL:
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: Dan_FR on June 22, 2017, 02:01:22 pm
The sensors are part of the manifold (cant be removed)
usual problems is the sensors fail or the runner flaps fail and dont open properly.

What sensor are you referring to?
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: jacobrownoly on June 23, 2017, 12:30:14 am
That fault code could be caused by the motor, the linkage or the actual runner flap assembly itself.... A new manifold MAY NOT fix the issue

Fit an RFD, bin off the motor.... job done and headache gone permanently....  :signLOL:

Sorry what's an RFD? Do you have a link to how I can get one/how it works? Cost? Etc thanks

The car seems to still be going really well so surly it can't be too serious
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: Leco_GTI on June 25, 2017, 12:48:59 am
RFD=Runner Flap Delete. Have a look on the forum or on internet.

I thought my car was running fine until a faulty manifold motor was replaced. After that I thought: wow... those flaps DO make a difference in performance if they are not working correctly. Unfortunately my manifold developed another problem but not sure what it is yet. So far the car is running "fine".
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: jacobrownoly on June 25, 2017, 02:50:52 pm
Thanks for that!

Not really interested in the RFD...especially since you have to change/tweed maps too.

If I need to I will just order a new one from tps. I have cleared the code and done a basic reset again. I will check again in another 50 so miles.

I really don't think it is effecting the cars performance. It still has the same punch as I can't remember.

I will keep this posted!
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: jacobrownoly on June 25, 2017, 08:41:39 pm
So logged the car tonight and everything seems normal.

Boost, air mass intake, lambda, fuel rail, cylinder knock. All seemed normal. :stupid:

Any thing I should log to show up a weakness/ issue in regards to this runner flap fault?

Thanks
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: Leco_GTI on June 25, 2017, 10:45:44 pm
Mine showed up a code but I don't remember anymore and the problem is still there. The intake seems to be problematic on those cars and any repair or replacement it's costly if you are not doing yourself. I guess if the flaps are not opening/closing properly or if they are stuck at some position you would have a code stored in the ECU. With regards logging, I will leave the experts to advise you. What I said is based on my own experience with the bloody intake.
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: jacobrownoly on June 30, 2017, 09:35:58 pm
Quick update - Cleared the code over 60 miles ago and done another basic reset (flapper control) using vagcom. Scanned the car again after doing over 60 miles and no fault.

When would a fault code/how many miles come back?

Would u say this is fixed?

Thanks
Title: Re: Intake Manifold Runner Control P3138 fault
Post by: Dan_FR on June 30, 2017, 10:34:34 pm
Probably not, it'll be an intermittent issue. Flaps are only used on idle, overrun and light cruising, and a fault with that system would usually need to happen several times before a code is triggered. Leave it for now and see how it goes