Code Reader arrived...please help!

[Elliottc26]

I plugged in my new code reader today and was presented with the following codes:

P0134 - Oxygen sensor ahead of TWC, bank 1

P1126 - Oxygen sensing adaptation, lower load range, bank 1

Reader said: Fault: 00

Pend: 02

I am guessing this is a lambda sensor...??? I had to unplug my MAF as was causing idle and acceleration problems...unplugged, problem ceased..!

Any ideas would be gratefully received...many thanks

Edited January 14, 2009 by Elliottc26

[Loren]

P0134 Oxygen Sensor Ahead of TWC, Bank 1 – Interruption of Signal

Possible causes:

– Wiring harness

– Oxygen sensor

– DME control module

Most likely a bad O2 sensor (especially if it has 93,000 miles on it).

You need to clean and or replace your MAF. You will not get a good air/fuel mix without it above 4000 RPM.

[Elliottc26]

P0134 Oxygen Sensor Ahead of TWC, Bank 1 – Interruption of Signal

Possible causes:

– Wiring harness

– Oxygen sensor

– DME control module

Most likely a bad O2 sensor (especially if it has 93,000 miles on it).

You need to clean and or replace your MAF. You will not get a good air/fuel mix without it above 4000 RPM.

Ah, thanks Loren...I did replace MAF but it was an old style sensor...I have ordered a new O2 sensor and a new MAF "new" style...what side of car will it be (I drive on right side!)...???

[Loren]

Using the new MAF requires a PST2 or PIWIS to reprogram the DME - you do have access to one right?

Bank 1 on a Boxster is the right side.

[Elliottc26]

Using the new MAF requires a PST2 or PIWIS to reprogram the DME - you do have access to one right?

Bank 1 on a Boxster is the right side.

Um, no access to PST2...I guess the old style is right then?! Starting to make sense now; although, new style sensor was removed...perhaps someone fitted the wrong part for the car??? Hmmm...

O2 sensor arrived today, so, will fit and see what happens...right side of car, ok...let's see

Thank you...