Question about 2003 Honda CR-V

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My check engine light is on. When I step on the gas the engine rpms go to about 2 1/2 to 3 1/2 and fluctuates between the it constantly going back and forth the car will not go above 3 1/2 rpm.

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If the check engine light is on, take the car to an autoparts store and have them use a scan tool to retrieve any fault codes stored in the car's computer. Most parts stores will perform the scan for free. This will show what faults the computer has identified and what systems are being affected. That will eliminate speculation. Hope this helped and best wishes.

Posted on Aug 02, 2009

  • aallentown Aug 25, 2011

    Having a very similar problem that I posted about on another entry. I hope I find and relatively economic solution. I can't recall what the diagnostic computer said the problem was but it had a list of about seven things.

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Use a scanner to see what codes are setting the check engine light.
Go from there to find the reason. Could be a number of things causing it. Most likely emissions or vacuum related.

When you post a question it is necessary to relate the vehicle info to properly try to diagnose any problem. General questions generate a wide variety of answers.

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Why do the rpms fluctuate constantly


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1ledsled1@comcast.net

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I got a 1990 ford ranger 2.9 v6 its running very crappy


Fluctuating an high RPMs sounds like a leaking or missing vaccume hose to me, I had simmilar problem found open hole with hose off, replaced it now the RPMs are under 1000 again.
As for the stalling I also am having a simmilar problem, and am finding air in the fuel rail, I suspect the fuel pump is going.
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Rpms fluctuate 300 to 400 rpms when driving


hav u done your needed maintenance like checking oil level-itz done with engine going in park also shift cable needs ajusting or solenoids on the electronic models if alot of miles then a rebilt is posible am tired and its late-try testing the tps sensor 1st has to with shifting***

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Rpms fluctuate


You are running LEAN. Meaning it could be a number of possible problems. Most likely cause is a air pressure leak. Go to your local auto parts store and buy some carb cleaner. Run the car and spray into engine compartment. If you hear the engine RPMs go up then you've found your leak.
Do you have a check engine light ?

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Engine won't idle. Constantly getting gas (Running around 1500-2000 RPMs).


The tps(throttle position sensor )may be malfunctioning

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