corsa-ed
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Registered: 1st Dec 07
Location: brid, east yorks
User status: Offline
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hi guys, would anyone know how to test for a knackered idle control valve on a corsa 1.4 ls hi torq, i think its the idle control valve but not too sure, i have been told i could test it with a multimeter but dont know what to look for and which pins to put it in on the connector plug, thanks guys
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Will94
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Registered: 1st Nov 02
Location: Nr. Ipswich, Suffolk
User status: Offline
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I'm guessing its not idling very well? Has the EML come on at all?
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corsa-ed
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Registered: 1st Dec 07
Location: brid, east yorks
User status: Offline
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the car when cold cuts out a hell of alot when cold and works better but really underpowered when moving from traffic lights or junctions, also doesnt pick up as well as it used to through the gears and struggles up hills, dont know about egr valve either because dont know where it is on my car, but have been told to test it, any advice would be grateful thanks
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corsa-ed
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Registered: 1st Dec 07
Location: brid, east yorks
User status: Offline
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no the engine management light isnt on, have had it on the diagnostic computer we have at college and it didnt pick anything up
i havent got a clue what it could be
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Will94
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Registered: 1st Nov 02
Location: Nr. Ipswich, Suffolk
User status: Offline
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I'd suspect the EGR valve or the coolant temp. sensor... althought a number of sensors could cause the symtoms you're getting these 2 are common causes. the EGR's coke up and pistons seize giving the ECU funky readings, and the coolant temp sensor gives off false readings both making the ECU adjust the ignition timing and fuelling at the wrong time.
Only real way to check is to change them tho and EGRs aint cheap new, how many miles has ur car done?
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corsa-ed
Member
Registered: 1st Dec 07
Location: brid, east yorks
User status: Offline
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104,900 miles, dont know were the egr valve is for my engine, is the coolant temperature sensor a sensor which is with the thermostat and thermostat housing.
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corsa-ed
Member
Registered: 1st Dec 07
Location: brid, east yorks
User status: Offline
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would anyone be able to help me with this problem, would anyone were i could find the egr valve under the bonnet on my car, i know were the icv is and cleaned it today but the problem still persists, what would be the best things to use to clean the idle control valve, thanks
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