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2000 VW Beetle GLS 1.8 Turbo Manual Trans
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Discussion Starter · #1 ·
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!!!

19,633 Posts
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.

19,633 Posts
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.

19,633 Posts
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:

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):




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


Location: behind Three Way Catalytic Converter (TWC)

sensor and wiring testing procedures:

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