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Where is idle control valve on 1.8i gdi

I have a volvo 1.8i with GDI Engine 1999 when it is cold it ticks over good,when it warms up idle speed goes up and down,sometimes worse than others. Many thanks N.Allen

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SOURCE: Spark Plugs for 1.8L 4G93 GDI Engine

the correct transmission fluid is ATF+4, any other trans fluid will spoil the transmission.
i use platinum spark plugs in my engine, works great.

Posted on May 08, 2009

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Volvo v40 2000nx reg 1.8 NON gdi engine constant high rpm can having no thermostat cause constant high rpm or can a briken lambda sensor cause high rpm cleaned all throttle body cleaned idle valve checked...


Yes, having no thermostat can cause the car to run fast as it will still be set in it's "warm up" mode and will be injecting a richer mixture of fuel/air into the cylinders. There may be an additional cold start injector that just works while the engine is cold. You will probably use more fuel like this. It's not a great idea to run with no thermostat anyway because you get uneven hot and cold spots around the engine which is bad for it. Cheers

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I have a v40 1.8 gdi x reg 75k but on tick ova the revs go up and down and sumtimes stalls can any 1 help please


It is most likely to be the throttle housing and idle control valve that needs a good clean, Gdi's are prone to coking up and cleaning these parts usually solves idling problems!

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Check the hoses connected to the throtle bodie.One of them is still out.Found it.

May 12, 2010 | Cars & Trucks

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Have you checked the air flow sensor? and idle control valve? other possibility is the EGR valve.

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Hi my mitsubish pajero io gdi 4g93 does not idle properly with air condition on and hold backs when driveing


idle air control valve or your fact idle valve is not working properly, all two of these are housed in the throttle body.You can try cleaning the throttle body firet if it dont work you knpw what to do. Good luck.

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Poor /no acceleration


THE GDI ENGINE SUFFERS FROM EXTREME "COKING" - DEPOSITS THAT STICK AROUND THE VALVES AND PREVENT PROPER OPERATION, RESULTING IN POWER LOSS. REPAIR CAN BE EXTENSIVE AND COSTLY ESPECIALY IF YOU START TO HEAR A RATTLE ON IDLE. THE FIRST STEP I WOULD SUGGEST IS, TRY USING FUEL ADDITIVES SUCH AS WURTH FUEL/GAS/VALVE TREATMENT THESE ADDITIVES ARE QUITE CAPABLE OF CLEARING OR CLEANING CONTAMINATED PARTS IN TIME.

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YOU MAY HAVE A IDLE SPEED CONTROL VALVE PROBLEM, CLEAN IT FIRST, THEN DISCONNECT THE BATTERY, FOLLOW THE PROCEDURE I HAVE ATTACHED.

Here is the most common cause of this stall and idle speed issues, it is the idle speed control air-bypass valve and throttle valve, they get full of gunk over the miles and cause idle issues (stalls) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Nov 07, 2008 | 2000 Volvo S40

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