Plz help!!

[Mazza]

Car drives lovely in good weather but when it decides to rain or its damp my car looses alot of power and judders alot like im going to stall!! thought it might had been the spark plugs but their fairly new and was all done by a mechanic i know so im sure he knew what he was doing, anyone else had this problem or know what it might be and how i can sort it out??? Would really appreciate any help cheers. Mazza

[Octane2097]

sounds like the idle control valve or idle control moter
its just on the side of the airbox take it its a few torx screws and give it a good clean then replace
if its still no better it be about £30 - £50 to buy a new one (dont buy from vauxhall will charge u about £130)
hopfully should work

had this issue with mine but only used to do it when i started it, if i didnt press the gas peadle it just used to starts cough n stall out again
couldnt be botherd fixing it so just put my foot on the gas wen i started it.

[Mazza]

thanks mate will give it a try, do u rekon its that tho?? coz mine starts fine its jus when im drivin about, tends to do it maily in 2nd gear when i get to 3rd its usually ok but not perfect. sometimes it seems ok n i think ive got away with it n pull out onto a roundabout or something then loose pretty much all power so im jus dordling onto the roundabout with cars heading my way Mazza.

[Octane2097]

its the fact it does it in damp weather thats the give away, common fault idling badly wen its wet happend on my m8s corsa too,.

fixed it with a good clean which worked for a few month then it went completly n had to be replaced.

mine was same it would start fine if the weather was warm but if it been raining id need to give it some gas to start but once it was running it was fine

[Mazza]

o ok thanks alot buddie, if its works you woulda saved me alota bother, jus need the bad weather to test it now soo u got n e pics of that old motor of yours, heard alot of it but seen very little, any chance of seeing some pics?? n i gota say u know your fare share about cars dnt ya lol. cheers m8. Mazza

[Octane2097]

not cars just corsa's lol well the 1.0 and 1.2 12v and 16v ones anyway!

and haynes manuals are a big help too

[Mazza]

if my distributer cap was a bit worn at the connection points inside could it cause the same thing to happen?? Mazza

[Octane2097]

possibly might be worth checking it

not sure but most corsa's use a DINS (distrobuter Less Ignition System) to do away with the dizzy cap and roter
think some of the early ones had a dizzy cap and roter but im not 100% on that

[Mazza]

mines a 94 soo yer has the cap and is in pretty poor condition n so is the rotor arm, getting a new cap soon so hopefully will make a cheap but big differance. One day i hope to upgrade to an audi but until then... lol. If ya have any tips on how i could improve my engine at all mate no matter how small id much appreciate it, im pretty sure its lacking in power on what its meant to be, Cheers. Mazza

[Octane2097]

spend alot of money for a full engine rebuild make it run like new or an engine swap for a newer one with less miles
how many miles has it coverd? if its high like 100,000 chances are its probably worn out and on its last legs, especialy if its had some brutal treatment over the years or a neglected service history

try a full service, fresh oil, new oil filter, new HT leads and plugs (and a new dizzycap and roter arm)
a new battery
new air filter (or a good clean if u have an induction kit)
flush the coolant system with new coolant
new pollen filters
new fuel filters, maybe clean the fuel system with some redex or somthing

that should give it a little bit of life and hopfully a bit more poke

common faults on the corsa are the ICV, and the MAF sensor maybe have a look at getting them swapped
also get the timing checked too could countrubute the poorly running
hope this helps,

when it comes down to it you could always just sell your car and buy another newer one from autotrader
seen a 1998 1.2 merrit 16v one on ebay looks pretty decent for £700 with 60,000 miles

[Mazza]

is deffinately an idea n thanks for your help mate will give a couple of those a try n see how things are, n mines done just over 80,000 miles so for the year aint to bad. Mazza