Help please OBD codes P2106 and P2258
Help please OBD codes P2106 and P2258
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Gmw76

Original Poster:

104 posts

181 months

Friday 26th February 2016
quotequote all
Hope someone can help. I have done some searching but any advice really helpful.

Running fine this morning for 20 miles then over hump back bridge. Not violently. Yellow emmissions service and urgent engine service lights on. Car erratic and limp mode. Switch off and on and fault immediately still there. Drove home on limp and checked and reset codes. Started and fault there straight away.
P2106
P2258

I think the first indicates limp mode. But the second is Secondary air injection system control A circuit high.

Is this a particular bank? Drivers side or passenger side?

Found this link http://www.6speedonline.com/forums/aston-martin/34...

Any experience or advice on this very welcome as car smells rich and not running correctly at all.

Thanks
Mark

Manwhoneverwas

598 posts

161 months

Gavc

226 posts

163 months

Saturday 5th March 2016
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Sounds like you have a fault with a O2 sensor. If you can get at them check exhaust and electrical connectors. You will only be able to clear with a OBD code reader.

Gmw76

Original Poster:

104 posts

181 months

Sunday 24th April 2016
quotequote all
Thought I would provide a quick update to this for anyone else experiencing it. I found an AM diagnostic note online and followed that to a point which I didn't want to go beyond. After that it went to the new Wilmslow centre for sorting 😀

The fault code suggested electrical problem with secondary air injection system. The front part of this is easy to test with a test meter and has an individual fuse located to top right of the engine bay looking from front. This in turn feeds a blower motor via a relay mounted next to engine bay charge point. Again easy to take out and bench test. If faulty google the Tyco relay part number as it is generic and cheaper online. Alas all this checked out and the next procedures involved getting at the blower motor which is buried beneath inlet manifolds and plenum. Time to give it the experts!

The fault was actually the blower motor. £750 later and back on the road.

If experiencing similar, quite easy to check out the electrics as above to make sure the basics are still ok. Beyond that I was struggling.

The guys at Wilmslow suggested it wasn't that common a fault.

Mark