volvo v70 lombard sensor

[V70dingo]

hi all last week mt 2001 v70 engine managment light came on , car had a wee splutter on motorway lasted less than a second ,and managment light cameon ,,,,so came home plugged in vida and code :ECM-2110 Front oxygen sencor(HO2S) Preheating- signal too high , well changed oxygeon sensor and reset light ,done test drive and a few start stops ,,,,, all ok no light on ,,,,until this morning , started engine and can you all guess ,,,,,yes the same managment and code back ,,,,,,,,,,,,,,,any one got an idea what else this could be

[4candles]

Maf sensor perhaps, this is the primary sensor (after temperature) that determines the cars fuelling requirements, a dodgy signal from this will just relay the wrong (default rich) message to the injectors, and this will obviously affect the reading at the lambda. (rich error code bank 1 or front)... bank 2 is the rear lambda after the cat.

I'd at least give the Maf a clean with the appropriate cleaner and check the codes again after at least one overnight stop start cycle.

ps.
If you just threw in a cheap lambda sensor there's a very good chance you've wasted your money, don't throw the old lambda away just yet!

Btw, Lombard is a loan specialist.

[V70dingo]

hi thanks ill have a wee look in morning and no still have original lombda ,
will let you know how i get on

cheers