Question about Vauxhall Vectra

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Cold start problems Engine Starts but will not rev up

My Auto Vectra starts but appears to need more fuel as would be supplied by a choke system. It will not rev until engine is warm and then all is o k even though engine management light stays on.

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  • Vauxhall Master
  • 3,679 Answers

Get the OBD read by suitable mechanic prob an engine sensor

Posted on Mar 26, 2014

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Posted on Jan 02, 2017

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SOURCE: when starting from cold it

if the idle goes up and down constantly it will be the iac motor which is common on hondas 

Posted on Sep 11, 2008

  • 101 Answers

SOURCE: when I start the engine from cold it runs on high revs too long

Hi ..... This sounds as if it's fitted with an automatic choke, as long as the revs drop when it's warm there is nothing to worry about. The indication when these start to go wrong is that the car won't start when cold ................ even then any decent mechanic can fit a normal/manual choke.

Posted on Jan 03, 2009

emissionwiz
  • 76164 Answers

SOURCE: not reving high on cold start

Here is the most common cause of surges and stalls and low idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) 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

Posted on Feb 06, 2009

  • 1 Answer

SOURCE: On start up the engine starts fine and idles but wont rev up

try your maf sensor

Posted on Jun 19, 2009

  • 1 Answer

SOURCE: from cold start my renault megane starts to over reving

Having exactly the same problem with my megane and the mechanic just charged me £687.00 and does not know what to do!!!

Posted on Dec 20, 2009

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you must have noticed that when the car was ok and was cold started it use to stay at high rpm and after its warm the rpm reduces

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Sometimes to start you have to give it a lot of


Hi
This sounds like a cold start system fault, which is a number of things.
  1. Cold start temperature sensor not operating correctly so the cold start system won't work when the engine is cold.
  2. The idle needs to be set to the correct RPM of the engine when warm, if it is idling ok when it is warm then this wont be the problem.
  3. Spark Plugs are worn and need replacing.
Most case's its the cold start system not operating correctly and if you have a good workshop to take it too they should pick this up quite quickly. Hope this helps, let me know how you get on.

Apr 03, 2010 | 1996 Toyota Corolla

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2006 crv 2002 willnot start with turning key willstart with tow or short pushallparts of fuel (diesei)line cleaned pump&inj.test ok engine will turn when key is used key test ok test show lack of fuel...


hi if when engine starts and warms up it then runs ok ? then starts ok rest of day ? considering vehicles age/milage ? have you checked heater glow plugs ? you only need one glow plug to fail/ leak to earth on cyl head and this will knock out/ leak power to earth of all other g/plugs also consider the possibility that the engine coolant sensor ( not the temp sender) has gon faulty this sensor gives ecu signal to provide excess fuel for cold starting on cold starts and auto cuts off as coolant heats up? rather like using choke control on carbs years ago ? also diesels used to have excess fuel device on pumps on trucks in days gone by ? whick assisted in cold starting hope this info helps?

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Hard to start on cold mornings but starts fine when warm


The cold start valve is not operating correctly. Either the engine coolant temperature sensor is bad or the cold start valve itself is bad. You can check the engine coolant temperature sensor by going to radio shack or any electronic store and purchase a 15k ohm or higher resistor. Disconnect the engine coolant temperature sensor (ECTS) harness. Bridge the 2 female spade connections in the harness with the resistor. Start the engine. If the engine starts you need to replace the ECTS. If the engine is still hard to start, you need to remove the cold start valve, (wear safety goggles, and whatever you do don't smoke) place the cold start valve in a glass and have someone crank the engine. You should see gas coming out from the cold start valve. If not take a ohm meter and measure the terminal at the cold start valve after disconnecting the wire harness. The meter should read 25 ohms. If it doesn't replace the cold start valve.

May 25, 2009 | 1992 Audi 80

1 Answer

Automatic choke is stuck on my bmw


the 318 is fuel injected and has no automatic choke,it does have a cold start system to aid in cold starts,the most likely cause of your problem is a bad or dirty throttle position sensor.you may also need to clean the throttle body and throttle linkages or cables

Apr 29, 2009 | 1996 BMW 318

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