[Smilingnomatterwhat43]

I have a 2000 Beetle 1.8L GLS Turbo Manual trans.
I'm having a few problems with it and I hope someone can help me figure out whats wrong with my Babe!!! ???
1) He will not take off on a hill if the A\C is on.
2) Cruise control just randomly quit working.
3) He will not idle without pumping gas and it takes several pumps to finally pick up.
4) He has been known to die randomly.
5) Check engine light has been on for a while.
I did hook it up to the code reader and can't remember right off what the code was but can check again tmw. I cleared codes and unhooked the battery for 30+ Mins. Check engine went off but came back on after about 10 mins.
I've read so many discussions and watched a ton of videos but no luck yet!!!
PLEASE HELP A GIRL IN NEED. 🙏🙏🙏

 

[billymade]

First, always scan for trouble codes; post any you find and these can give you a clue, as to the cause of your problems. Post those codes and we can go from there, thanks.

 

[Smilingnomatterwhat43]

It threw 3 codes
1) P0139 Sensor circuit slow response bank 1 sensor 2
2) P1127 Manufacturer Control
3) Same as #2 P1127

 

[Smilingnomatterwhat43]

I've done a lot of research and I'm leaning towards the downstream O2 Sensor but not completely confident. But would that cause him to have that whole list of problems??

 

[billymade]

OBD-II Trouble Code: P0139 Oxygen Sensor Circuit Slow Response (Bank1, Sensor2)

 

[billymade]

17535/P1127/004391 - Fuel Trim; Bank 1 (Mult): System too Rich - Ross-Tech Wiki

wiki.ross-tech.com

 

[billymade]

17535/P1127/004391 - Fuel Trim; Bank 1 (Mult): System too Rich

17535/P1127/004391 - Fuel Trim; Bank 1 (Mult): System too Rich
Possible Symptoms

• Malfunction Indicator Light (MIL) active
• Reduced fuel economy and engine performance

Possible Causes

• Cylinder misfires
• Spark Plugs
  • Old or worn out plugs
  • Incorrect type for engine
• Fuel Injectors
  • Leaking
  • Dirty, poor spray pattern
• Weak ignition system, coil(s), plug wires
• Fuel Pressure
• Boost leak
• EVAP Purge Valve (N80)
• MAF (G70)
• O2 Sensor(S)

The code definitions, can give you some ideas, on testing for possible problems and solutions, from the results of the testing procedures.

What scan tool are you using; does, it have live data capability and do you want to do repairs yourself or have a professional repair shop, handle things? If you want to do your own repairs; we can give you links, to testing procedures, that can help you diagnose, troubleshoot your problems and do a process of elimination, to find the issues, causing the poor running problems.

 

[Smilingnomatterwhat43]

Husband checked injectors and they were good. I'll discuss everything else with him tmw. I'll post updates then! Thank you!!

 

[billymade]

The Bank 1 Sensor 2, is after catalytic converter; while, it does play a role in the computer adjusting the engine, the Bank 1 Sensor 1, plays a more important role. If you do decide to replace the 02 sensor; it is recommended to only use oem genuine Bosch sensors, which VW uses from the factory and are supplied, when buying genuine VW parts.

You can look up the correct sensor; by using the Bosch online catalog here:

Home - Bosch Auto Parts - Liferay DXP

www.boschautoparts.com

For testing, you can follow the procedures; outlined, in this service manual link below (be sure, to click "next"; to advance to all the pages/testing procedures):

locations:

3

-

Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) -G130-, 50Nm
-

Location: behind Three Way Catalytic Converter (TWC)

Volkswagen Workshop Manuals > New Beetle GLS L4-1.8L Turbo (AWV) (2001) > Powertrain Management > Ignition System > Sensors and Switches - Ignition System > Camshaft Position Sensor > Component Information > Locations

New Beetle GLS L4-1.8L Turbo (AWV) (2001) > Volkswagen Workshop Manuals > Powertrain Management > Ignition System > Sensors and Switches - Ignition System > Camshaft Position Sensor > Component Information > Locations

workshop-manuals.com

sensor and wiring testing procedures:

Volkswagen Workshop Manuals > New Beetle GLS L4-1.8L Turbo (AWV) (2001) > Powertrain Management > Computers and Control Systems > Oxygen Sensor > Component Information > Testing and Inspection > Oxygen Sensor & O2 Sensor Regulation After Converter, Check > Page 3979

New Beetle GLS L4-1.8L Turbo (AWV) (2001) > Volkswagen Workshop Manuals > Powertrain Management > Computers and Control Systems > Oxygen Sensor > Component Information > Testing and Inspection > Oxygen Sensor & O2 Sensor Regulation After Converter, Check > Page 3979

workshop-manuals.com