Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

right
my corsa its fine driving around but anything abouve 53 ish engine management light pops up and it sorta backs of slightly i had a diagnostic done it brung up lambda sensor which ive replaced mas which i replaced for a non bosch one paid 50 pound for it and it also brung up icv which i changed so im thinking its possibly the cheapy mas what does every 1 think

It might be. I had this problem before and replaced the MAF (im guessing thats what you mean when you say mas), if so, I paid £35 and it sorted my problem out.

If you have replaced the lambda sensor and the icv (not sure what this is) then it could either be the MAF or possibly its a bunged up EGR valve (find help with that here: http://forums.corsa-b.co.uk/viewtopic.php?f=105&t=13605 )

Will need to know the part number from the sensor you removed (or even the engine code - find them here: http://forums.corsa-b.co.uk/viewtopic.php?f=104&t=11153 )

Just so you know - i have a 1.2 16v (X12XE) and this is the part I bought from eBay - http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... K:MEWNX:IT

Might not be much use for you though, depends on the part number and engine size/code.

Are you under steady/hard acceleration in fifth gear when the light comes on?

um it does it in forth aswell but i could just be slowly accelerating it will do it if i press it hard and go flat out the light wont come on at all but as soon as i let off the throotle it will come on after a few seconds.

bump

Hi
I had the same problem my light comes on tho when im in 5th gear under harsh acceleration say doin 75mph or over...
Just dont what it could be any ideas?.

EGR Valve most definitely