engine management light plus PINKING and restricted power

[alexcorsa]

hi im new to the site ive got a 3 dr 1.2 16v on a t plate and ive got some problem i was wondaring if anyone could help
my problems are;

a juder and loss of aacceleration at 3750rpm onwards
engine management light comes on if you floor it
and loss of power on pull away when its cold
and it pre ignites some times normaly under load

these are the bad bits about my car allthough ive just put
monroe gas reflex shocks on and lowered it 40mm wiht corsa c sxi's on it looks good but not too low

i hope some one can help me thanks

[haydn1987]

do the paperclip test tell us what fault codes you get
http://www.allcorsa.co.uk/forums/showth ... -8479.html

When was it last given a good service?

It could be the MAF doing the paperclip test will tell you for sure.

The engine shouldn't pink it has a knock sensor that detects pinking and alters the mixture to stop it.

[alexcorsa]

ok il give it ago i dont realy understand what iv e got to do tho with the paper clip
thanks

i changed air and oil filter and oil and plugs about 4000m ago

[alexcorsa]

i done the paper clip test and got nothing allthough , my connector block isnt like either of the ones displayed it is a 16 block but its got no 8 its got a 7 no 6 it has 5 and 4 and 3 where as the pictured one has an 8 no 7 and a 5and6 so what do i do
if this is cobnfusing then just give me your number and i can ring you or somthing thanks

my copnnector is the same as the one on this page
http://www.allcorsa.co.uk/forums/showth ... 479p2.html

[haydn1987]

Sorry you just need to put a paper clip between 6 and 5 don't do it between any others, pin 6 is the important one for the ECU pin 5 is just ground.
It seems that you are unlucky and have a corsa that vauxhall decided not give a pin 6. This means the only way to read fault codes is with a hand held reader, vauxhall can do this but will charge you a fortune, most garages also have readers and won't charge you much.

[alexcorsa]

ahhh bitch lol oh well its doing my nut in i hate driving it i cnt drive on motor ways cos it keeps judering and pinking ive been told 30quid to read it but its by this dodge vaxhaul breakers and i rekon theyl tell me i need a hole (new engine) instead of a air flow meter lol

can some one tell me the size of my door speakers as i want to replace them but keep the standard look???????

[Jimi137]

Door speakers are 5.25" i think - or 14cm. Check the ICE forum though - it shud say in there. Just remember any after market speakers will need an adapter as they will be deeper than the standard plates - its only a few quid from halfrauds or ebay though

[roperstun]

ive got two sets of 17cm speaker adapters £5 each posted

[Hollings]

i had this and i had problems moving off when engine just started, i had a new airflow meter and i havn't seen the light since

[alexcorsa]

thanks il try to get my hands on a air flow meter but the 80 odd quid or 67 from sc's but thats for the original bosch one i can get a copy one for 30 is it worth getin the bocsh one????? thanks

[alexcorsa]

hi i baught a new original aikr flow meter and its sorted it flys now copmpared to before!!!!!!! thanks