Eme

Hello, this is my first post on this forum.
I own a TTQ 225 hp 1.8L T year 2001
The engine light popped on the dashboard so i ran an VAG-COM test and got this error:

VAG-COM Version: Release 704.1

Address 01: Engine
Control Module Part Number: 8N0 906 018 H
Component and/or Version: 1.8L R4/5VT 0001
Software Coding: 10710
Work Shop Code: WSC 01236
Additional Info: TRUZZZ8NZ11012404 AUZ5Z0Y8013119
2 Faults Found:
17544 - Fuel Trim: Bank 1 (Add): System too Lean
P1136 - 35-00 - -
17658 - Fuel Level too Low
P1250 - 35-00 - -

Readiness: 0000 0000


The car seems to have lag on fast accelerations, the RPM indicator seems to drop to low when the car isnt moving etc ...

Some said is the lambda probe (oxygen sensor) so i checked that and the sensor in front of catalyst it shows 3 - 4 volts when the car inst moving and 1.5 to 1.7 volts when accelerating ( the normal voltage is 0.9 to 1.0v).
So what can it be ? some said the MAF sensor may require cleaning ...

I've checked the oil and is ok.

Thanx in advance

roadyTT

From Ross-Tech....

17544/P1136/004406 - Fuel Trim: Bank 1 (Add): System too Lean
[edit]
Possible Solutions

* Check Mass Air Flow (MAF) Sensor
* Check Fuel Pressure Regulator
* Check Fuel Pump
* Check Intake/Exhaust System for Leaks
* Check Secondary Air Injection for Leaks
* Check Vacuum Lines for Leaks

Astronut

Look at measurement Block 32. Probably above +10%.
You can try removing the sensor and cleaning it but chances are you will need a new one. How many miles on the clock?

Eme

i've cleaned the MAF yday and now i've got a new error.

Is the first time i see this error:
1 Fault Found:
16514 - Oxygen (Lambda) Sensor B1 S1: Malfunction in Circuit
P0130 - 35-00 - -

Readiness: 0000 0101


So it seems that i rly need to change the lambda probe 1.
Ill change it and see if i get more VAG-COM errors.

Thanx

Eme

i've cleaned the MAF , ill check the rest next week.

anyway ... suddenly i get a new error:
1 Fault Found:
16514 - Oxygen (Lambda) Sensor B1 S1: Malfunction in Circuit
P0130 - 35-00 - -
Readiness: 0000 0101

So it seems is lambda probe after all...