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Discussion Starter #1
This code has popped up on my VAG reader as a faulty oxygen (lambda) sensor B1 S1 no
activity. This happened during a track day, I may have got a little carried away with myself
chasing others around the track. At track was able to change N75, MAF sensor, checked forge
007 DV (ok), checked for leaks without success. Car drives with little or no boost, as if its by passing somewhere. The following day changed O2 sensor (pre cat) thinking this would sort
everything out, but no. Code returns quickly. Having no visible signs of a blown turbo, i.e. no
white or blue smoke. Have tried pressuring the intake side, blanking off PCV, and using air line set at 10psi, through the TIP(tip removed), I can't seem to raise pressure, is it possible that my waste gate flap could be stuck open ? Will check this asap, some positive thoughts would be appreciated guys.

Regards Lenny
 

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obdcheap.com
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U381 LIVE DATA OBD2 Code Reader

U381 LIVE DATA OBD2 Code Reader

Online Shopping Security

High Quality, Low Price & Excellent Service

Color : black

Weight : 700g

Dimension:260*190*60mm

Regular Price: $59.99 Buy it Now : $55.20



Supported Vehicle:


Suitable for almost all cars

Product Description


Description:
memoscan U381 Code Scanner is for real-time automotive diagnosis based on the OBD 2 protocol. It offers Full Feature Scanning including 'LIVE DATA". By simply plugging it into your vehicles diagnostic socket, you will be able to Read all Trouble Codes & Definitions related to the "Check Engine Light", Save & Review results, Reset the trouble light, Monitor & Freeze-Frame Data,+more. Also retrieves the VIN (vehicle identification number) on supported vehicles.
Functions:
1.Reads and clears generic and manufacturer specific Diagnostic Trouble Codes (DTCs)*

2.Trouble codes display on the LCD, no need to check code book anymore

3.Scanning live data*

4.Reading Freeze Frame Data

5.Testing I/M Reading Status*

6.Reading vehicle info

7.Rescanning Data
Specifications:
Port: 16-pin OBD2 Standard Socket.*

128 x 64 Back-lit LCD Display with contrast.*

External power: 10 to 15.0 volts provided by vehicle battery.*

Internal Power: 9V cell battery.
Workable Models
1.Works on most OBD 2 or EOBD vehicle worldwide. 1996 & newer. (VPW, PWM, ISO, KWP 2000)

2.U.S. Models - European - Japanese - Asian - German - Korean...*

3.Check under the hood for your vehicles OBD specifications
If you car is CAN-BUS system,you may have to use U581.
Support system:
1.Misfire;2.Fuel System;3.Comprehensive components (ccm);4.EGR System;5.Oxygen sensor;6.Catalyst;7.Evaporative;8.O2 Sensor heater;9.Secondary air 10.Heated Catalyst;11.A/C System;12.many more..
Package list:
1pc x U381 OBDII/EOBDII Scanner*

1pc x 16 pin OBDII connection cable (to connect scanner to vehicle)*

1pc x Internet upgrade cable (to connect U381 to pc)*

1pc x Instruction Manual*

1pc x Nylon Case
 

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Registered
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4,271 Posts
SPAM. There are generic OBDII scanners out there for around 18 bucks and VAG type scanners for around 38 bucks.


U381 LIVE DATA OBD2 Code Reader

Online Shopping Security

High Quality, Low Price & Excellent Service

Color : black

Weight : 700g

Dimension:260*190*60mm

Regular Price: $59.99 Buy it Now : $55.20



Supported Vehicle:


Suitable for almost all cars

Product Description


Description:
memoscan U381 Code Scanner is for real-time automotive diagnosis based on the OBD 2 protocol. It offers Full Feature Scanning including 'LIVE DATA". By simply plugging it into your vehicles diagnostic socket, you will be able to Read all Trouble Codes & Definitions related to the "Check Engine Light", Save & Review results, Reset the trouble light, Monitor & Freeze-Frame Data,+more. Also retrieves the VIN (vehicle identification number) on supported vehicles.
Functions:
1.Reads and clears generic and manufacturer specific Diagnostic Trouble Codes (DTCs)*

2.Trouble codes display on the LCD, no need to check code book anymore

3.Scanning live data*

4.Reading Freeze Frame Data

5.Testing I/M Reading Status*

6.Reading vehicle info

7.Rescanning Data
Specifications:
Port: 16-pin OBD2 Standard Socket.*

128 x 64 Back-lit LCD Display with contrast.*

External power: 10 to 15.0 volts provided by vehicle battery.*

Internal Power: 9V cell battery.
Workable Models
1.Works on most OBD 2 or EOBD vehicle worldwide. 1996 & newer. (VPW, PWM, ISO, KWP 2000)

2.U.S. Models - European - Japanese - Asian - German - Korean...*

3.Check under the hood for your vehicles OBD specifications
If you car is CAN-BUS system,you may have to use U581.
Support system:
1.Misfire;2.Fuel System;3.Comprehensive components (ccm);4.EGR System;5.Oxygen sensor;6.Catalyst;7.Evaporative;8.O2 Sensor heater;9.Secondary air 10.Heated Catalyst;11.A/C System;12.many more..
Package list:
1pc x U381 OBDII/EOBDII Scanner*

1pc x 16 pin OBDII connection cable (to connect scanner to vehicle)*

1pc x Internet upgrade cable (to connect U381 to pc)*

1pc x Instruction Manual*

1pc x Nylon Case
 

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Registered
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188 Posts
Discussion Starter #5
Yes, guys I have a VAG scanner, and a live liquid gauge, problem now sorted at last, Oh Yeah,
Full boost has returned !!!!!!!!!!!!!!!!!!!!!!

Regards Lenny
 

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Registered
Joined
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4,271 Posts
This code has popped up on my VAG reader as a faulty oxygen (lambda) sensor B1 S1 no
activity. This happened during a track day, I may have got a little carried away with myself
chasing others around the track. At track was able to change N75, MAF sensor, checked forge
007 DV (ok), checked for leaks without success. Car drives with little or no boost, as if its by passing somewhere. The following day changed O2 sensor (pre cat) thinking this would sort
everything out, but no. Code returns quickly. Having no visible signs of a blown turbo, i.e. no
white or blue smoke. Have tried pressuring the intake side, blanking off PCV, and using air line set at 10psi, through the TIP(tip removed), I can't seem to raise pressure, is it possible that my waste gate flap could be stuck open ? Will check this asap, some positive thoughts would be appreciated guys.

Regards Lenny
After replacing the O2 sensor did the code come back right away? If so the wiring to the O2 sensor may be bad. Check for cracks or corrosion.
Your car is probably in LIMP mode and not procuding any boost.
Reset the ECU and see if that gets your boost back.
Also check your Catylitic converter. It may be bad as well. Shake it and see if you hear any ratteling sounds. If so the ceramic in the Cat has broken up into smaller pieces and is blocking your exhaust path which leads to massive back pressure.
Also what spring are you using on your Forge DV? Don't use the Yellow. The Green is plenty for the little Turbo of the Beetle. The harder spring actually reduces power.

Also check your MAF sensor connections and make sure it's clean. What type of N75 are you running? I used the N75 Rave valve and didn't care for it on my Beetle with my REVO stage 1 tune. It actually reduced my boost instead of increased it.
Good luck in getting the car fixed.
Keep us posted!
 
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