Is my throttle pedal going bad?

[groggory]

My ASR light came on + my EPC light came on.

Pulled some codes when I got home.

Address 01: Engine Labels: 06A-UNI-032-BT.lbl
Control Module Part Number: 06A UNI 032 BT
Component and/or Version: 1.8L R4/630 G 0001
Software Coding: 07500
Work Shop Code: WSC 12849
Additional Info: 3VWSE69M03M099601 VWZ7Z0B5967691
VCID: BE6EA846BAEFA6E8939
3 Faults Found:

16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - Intermittent
16685 - Cylinder 1
P0301 - 35-10 - Misfire Detected - Intermittent
17579 - Angle Sensor 2 for Throttle Actuator (G188) Implausible Signal
P1171 - 35-00 -

Readiness: 0000 0000

Cleared codes

I did a test using vag block 62

Engine is on key-on state
Slowly pushed the accelerator to the floor, then slowly let it up.

https://dl.dropbox.com/u/9842192/gro...xx-xxx-new.CSV



What do you guys think, everything looking good? I don't know what these values are supposed to look like.

Thanks.

[Vegeta Gti]

yup..go to the junk yard and find one, but also, check the blue connector in the bay to see if it is damged,has water corrosion,etc.

[groggory]

What blue connector in the bay? Isn't the blue connector attached to the pedal?

[groggory]

What are the numbers supposed to look like?

At:

No throttle
Full throttle

[Vegeta Gti]

sorry, in the drivers side rain tray area i believe...i forget i put mine somewhere specific, bt yes, the opposite end from the pedal has had isues over the years. bu ti would start with a pedal first, see if you can pull one out of a friends car right fast.

[groggory]

What pedal assemblies can I use?

Would any mk4 pedal set work regardless of engine and transmission?

[K20017]

Here is my stock TB

G79 Sensor

No throttle: 14.5%
Full throttle: 75.4%

Drive Angle Sensor 1

No throttle: 11.3%
Full throttle: 82%

[zrau17]

What pedal assemblies can I use?

Would any mk4 pedal set work regardless of engine and transmission?

If you can find out what ones work I have one

[gtiguy12]

sorry, in the drivers side rain tray area i believe...i forget i put mine somewhere specific, bt yes, the opposite end from the pedal has had isues over the years. bu ti would start with a pedal first, see if you can pull one out of a friends car right fast.

I had a R32 that had faults for 1 circuit of the throttle pedal. He had recently removed the cover under the rain tray to run some wires for gauges and the connector loose. Worth checking if you have been in that area recently.

[groggory]

I had a R32 that had faults for 1 circuit of the throttle pedal. He had recently removed the cover under the rain tray to run some wires for gauges and the connector loose. Worth checking if you have been in that area recently.

I was in the rain tray area a few months ago to relocate my meth controller. I'll go in there this weekend and look for the blue connector.

See if it's loose. If it is, then that's my problem, if it's not, then

I'll disconnect it, look at the contacts, check their condition, if they look corroded, that's my problem, if not, then

I'll spray some Electrosolve zero residue contact cleaner on both sides for good measure, let it dry out, then hook it back up. Do another log like I did in the first post. If my results are different and in particular show:
G79 Sensor

No throttle: 14.5%
Full throttle: 75.4%

Drive Angle Sensor 1

No throttle: 11.3%
Full throttle: 82%

then that's my problem, if not, then

I'll replace the pedal, do a log like I did in the first post, and check that my results are:
G79 Sensor

No throttle: 14.5%
Full throttle: 75.4%

Drive Angle Sensor 1

No throttle: 11.3%
Full throttle: 82%

....

On a side note, I called my friends at my local shop and they are checking the parts database for me and seeing if the same gas pedal is on all of the mk4 bodies.

[groggory]

According to ECS:

Accelerator Pedal - Manual Transmission

Part # 6Q1721503M
ECS Price: $164.91

According to Jim Ellis VW Parts:

Alternative Stock Codes:
1J1-721-503-J; 1J1721503AC; 1J1721503J; 1J1721503L; 6N1721503C; 6N1721503E; 6N1721503E B41; 6N1721503G; 6Q1-721-503-A; 6Q1-721-503-C; 6Q1-721-503-E; 6Q1-721-503-F; 6Q1721503A; 6Q1721503C; 6Q1721503E; 6Q1721503F

Fitment:
Golf 99,2000,2002-12
Golf Turbo 2001
GTI 2004
Jetta 99-12
Jetta Turbo 2008
Jetta Variant 2001-2006
New Beetle 98-2010
New Beetle Turbo 2006-2008
New Beetle Convertible 2003-10
New Beetle Convertible Turbo 2005
R32 2004
Rabbit 2004

Fitment Notes:
New Beetle: Manual Trans

...So in short, I can use a gas pedal off any mk4 car that came with a manual transmission

[gtiguy12]

I was in the rain tray area a few months ago to relocate my meth controller. I'll go in there this weekend and look for the blue connector.

See if it's loose. If it is, then that's my problem, if it's not, then

I'll disconnect it, look at the contacts, check their condition, if they look corroded, that's my problem, if not, then

I'll spray some Electrosolve zero residue contact cleaner on both sides for good measure, let it dry out, then hook it back up.

You probably won't find any corrosion in the connector. Inspect the terminals to make sure they are not spread out and pull backwards to make sure they don't fall out. Most importantly, make sure both ends of the blue connector are sitting flush together. There is very little room on that harness when the cover is removed so it is very easy to pull backwards and make the connector disconnect.

[groggory]

You probably won't find any corrosion in the connector. Inspect the terminals to make sure they are not spread out and pull backwards to make sure they don't fall out. Most importantly, make sure both ends of the blue connector are sitting flush together. There is very little room on that harness when the cover is removed so it is very easy to pull backwards and make the connector disconnect.

Sounds good. I'll get that done sometime this weekend.

And just FYI, a failing throttle pedal, when the ECU detects it, will still allow you to drive the car, but it keeps you from accelerating very well. I think it clamps the throttle body mostly shut. I have my N249 deleted and use an EBC. When accelerating full throttle I am running right around 2 in Hg...which tells me my throttle body is probably open just enough to let me drive on the freeway

[groggory]

Oh crap, I just did some research...

Angle Sensor 2 for Throttle Actuator (G188) Implausible Signal

..

My research is telling me that G187 and G188 are the sensors in the THROTTLE BODY, not in the gas pedal like I've been thinking.

Would someone please confirm that?

If so, that means my throttle body electronics are going bad, not my accelerator pedal.

[mk4boost]

if anything, i have a pedal from a mk4, working condition... its from the user spartiati, shoot him a PM if you end up wanting it, i kind of stole it from him

[Issam Abed]

If so, that means my throttle body electronics are going bad, not my accelerator pedal.

The TPS has probably failed.
I can sort it Monday for you.

[dkell426]

I pulled the same code. I cleaned the throttle body but still have the ASR & EPC problem from rough bumps but it doesnt throw a CEL anymore, fixes itself after a restart. have you figured out what the problem may be or have an idea of what to check? im tempted to change the TB but would like to look for cheaper possible reasons first.

[groggory]

I pulled the same code. I cleaned the throttle body but still have the ASR & EPC problem from rough bumps but it doesnt throw a CEL anymore, fixes itself after a restart. have you figured out what the problem may be or have an idea of what to check? im tempted to change the TB but would like to look for cheaper possible reasons first.

Do the same vag com test I did.

What are your numbers

[dkell426]

Do the same vag com test I did.

What are your numbers

i dont really have access to a VAGcom. ill try to meet up with someone who does.