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Model specific boards => Golf mk4 => Topic started by: ade_aidy_ady on 07 December 2013, 18:26

Title: pls help ... car messing about
Post by: ade_aidy_ady on 07 December 2013, 18:26

so recently when my car is started just after moving off the EPC and traction control light come on the dash and car has a very lumpy idle and goes into limp mode .... sometimes when left for about 5 mins the car will start ok and no lights come on the dash .... when scanned it bring up the following codes .... i have cleaned the throttle body and intake air temp sensor and realigned the TB with vagcom after ! really p****ing me off as it seems to be tempremental !

only has started doing this since i changed the numberplate and puddle lights to LED ... but i doubt its got anything to do with this ??

any help much appreciated !! car is a 1.8T AUM with 80,000 miles ....

6 Faults Found:

17966 - Throttle Actuator (G186): Electrical Malfunction

        P1558 - 35-10 - - - Intermittent

17987 - Throttle Actuator (J338): Adaptation Not Started

        P1579 - 35-10 - - - Intermittent

17953 - Throttle Valve Controller: Malfunction

        P1545 - 35-10 - - - Intermittent

16497 - Intake Air Temp. Sensor (G42): Signal too High

        P0113 - 35-10 - - - Intermittent

17953 - Throttle Valve Controller: Malfunction

        P1545 - 35-10 - - - Intermittent

Title: Re: pls help ... car messing about
Post by: barrym381 on 07 December 2013, 18:30

unplug your maf sensor see how it runs  :smiley:

Title: Re: pls help ... car messing about
Post by: ade_aidy_ady on 07 December 2013, 18:37

i tried that and it made no difference to how it was running .... still ran terrible when unplugged  :cry:

Title: Re: pls help ... car messing about
Post by: beppe2672 on 08 December 2013, 02:14

Just double check the electrical connection on the throttle body. Looks like something could be loose.

Title: Re: pls help ... car messing about
Post by: davidgtrr34 on 11 December 2013, 19:16

does it idle normal or is high or moving

Title: Re: pls help ... car messing about
Post by: Wazzzer on 11 December 2013, 22:22

Have you cleared the codes after you fitted the throttle body back on?

Title: Re: pls help ... car messing about
Post by: beppe2672 on 12 December 2013, 11:30

Quote from: Wazzzer on 11 December 2013, 22:22

Have you cleared the codes after you fitted the throttle body back on?

From the ross tech website:
There are certain test conditions that must be met before doing a TBA:

No DTC's in the Engine Controller
Battery voltage at least 11.5 V
Throttle must be at idling position (keep your foot off the gas pedal)
Throttle body part must not be dirty (carbonized).
Coolant temperature must be between 5 and 95C
If fault codes were cleared cycle the ignition off and back on prior to running Basic Settings.

Title: Re: pls help ... car messing about
Post by: Wazzzer on 12 December 2013, 18:40

All of those faults are pointing to wiring IMO