cyber_killer
Member
Registered: 26th Jan 09
User status: Offline
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hi everyone got few questions on my Corsa sport 
1. When i first start the car ( or when ever its cold) it makes quite a high pitch noise until the engine is warm ( only does this for less than 5 min) then it stops completely. drives 100% when making nose, is this normal?
second problem is sometimes when driving, particular between 2.5k and 3.5k the car will hold back and shake a little bit. I cant get it to misfire when reving, it has only done this when actually in drive.
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Corsa_Quadz
Member
Registered: 24th Feb 08
Location:
User status: Offline
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Its your SAI (Secondary Air Intake) all its doing is warming the exhaiust gases to warm the cat up, it does it on all Ecotec models. For use in foreign countries to keep in regulations with emmision standards
Try checking your connections on your battery about the juddering, check HT leads. Could be something in your fuel, just eliminate all possible cause before making a move on parts
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