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My qr20 engine idle at 1500 rpm even when its warmed up what could be the problem?

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  • 1 Answer

Can the coil cause that problem

Posted on Jan 26, 2013

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: idle out of control.

check all your vacuum hoses and the throttle body itself for a vacuum leaks if the hoses replace as nessasary if to check for throttle body get can of carb cleaner and spray around base of throttle body and sides not in it if idle raises you have a vacuum leak goto a good parts store and ask for a rebuild kit don't goto auto zone or advance they don't carry them

Posted on Oct 18, 2009

EnginEar
  • 57 Answers

SOURCE: idle surging

Consider replacing the rotary idle air control valve, and clean your throttle body.

Posted on Feb 28, 2009

emissionwiz
  • 76164 Answers

SOURCE: car idles low, stalls after start

Common issue at the shop (i'm a ford technician), here is what I do to correct it.
Here is the most common cause of surges and stalls at stops and low erratic idle speed and rough 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 Mar 11, 2009

  • 202 Answers

SOURCE: 96 RS Camaro High Idle on Cold Start.

you prob need a coolant temp sensor

Posted on Oct 30, 2009

  • 1 Answer

SOURCE: (2004 Stratus 2.7) The oil light stays on until

This same thing happened to me it was the oil sending unit that needed to be replaced. It's an easy fix but you have to take off the heat shield to get to it.

Posted on Nov 05, 2009

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1 Answer

Engine idles at 1500 rpm can I set kit lower


YES, 750 to 850 rpm after warm up.

Most engines always fast idle to warm up.

Aug 11, 2014 | Cars & Trucks

1 Answer

What is the factory Idle rpm for 22re efi engine


I've seen from 500 to 1500 RPM in all the manuals I've been through, depending on the year and application (truck/car). In personal experience, 650-800 RPM is acceptable warm operation range. This will also depend on elevation. Will go up to 1200-1500 RPM for cold starting. I live at about 2000ft and my '86 Pickup 22RE idles at 725-750 like a top after about a 3-4 min warm up @ 1250 RPM if it's cold (<45ish).

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1 Answer

Idles fast problem


That would be your engine "choke" functioning. It's not a problem. The choke engages when engine is cold and shoots extra fuel to the cylinders to idle the engine up especially in cold with. Once the engine has sufficiently warmed up, the engine will idle back down.

Jun 20, 2012 | 1987 Honda Accord

1 Answer

1987 Nissan truck, VG30 engine for past several months is idling too fast. Tried adjusting idle - no luck. Searched for RPM idling between 1500 to 2000 all the time? Even with warm engine.


The choke cam, which advances idling when the engine is cold, is possibly stuck in a partially closed position. A spray of penetrant oil with a bit of manipulation of the shaft should fix that problem.

Jan 15, 2011 | 1987 Nissan Pickup

1 Answer

Engine RPM will raise after engine is warm. This


COULD BE THE IAC VALVE "IDLE AIR CONTROL".
LOCATED ON THE THROTLE BODY, TRY REMOVING AIR INTAKE HOSE AND WITH INTAKE CLEANER SPRAY OPENING AND ALL HOLES IN OPENING WITH CLEANER.VALVE IS STICKING AND RAISING IDLE. CAN'T HURT AND YOU GET A CLEAN THROTLE BODY SERVICE.

Jan 27, 2010 | Subaru Outback Cars & Trucks

1 Answer

Cold idle is right at 2k rpm.


could be a vacume leak. check hose for cracks or lose conections.

Jun 13, 2009 | 1997 Land Rover Discovery

1 Answer

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.

Jan 03, 2009 | 2004 Hyundai Santa Fe

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