Question about 2004 Honda CR-V

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HONDA 2004 CRV LX 2WD A/T CLUTCH PRESSURE CONTROL SOLONOID VALVE C CIRCUIT A DID THE RESISTANC CHECK IT READS 05.5 ohm is it good or i need to replace it? thank you

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  • ajoel122094 Nov 18, 2009

    WHERE IS THE PCM LOCATED.

  • ajoel122094 Nov 18, 2009

    i have a liberary card thank you, do this car any relay for the clatch solenoid before i go to pcm testin?

  • ajoel122094 Nov 19, 2009

    i just changed the intake camshaft and timing chain the timing it does not sound righ, is there any relation or could it be any thing to do with it, i am trying to isolate the problem.or is it or different issue.

  • ajoel122094 Nov 19, 2009

    i do understand engine drivebility will afect transmition,in this case D(drive) on the inustemental panal in front of gear is blinking,when i drive the gear does not change

  • ajoel122094 Nov 19, 2009

    i still thank you for the rest

  • ajoel122094 Nov 24, 2009

    thank tou,the transmission problem resolved lose wire.



    now when i start the car the idel is fine,once the engine is warm the idel goes up and down what can couse that?

  • ajoel122094 Nov 24, 2009

    when engine starts idel is fine, once the engine warmup idel goes up and down what problem can couse that ?

  • ajoel122094 Nov 25, 2009

    i will drive the car, if that helps,but if that does not if the timing is way off

    the crank shaft at TDC the intake & the exaust cam shaft sprocket TDC marks it is hard to align to one each other facing to each other what is the best way to align?

  • ajoel122094 Nov 28, 2009

    HONDA 2004 CRV LX 2WD
    CODE P2646 ROCKER ARM BANK 1 PERF ACURATOR A OR STUCK OFF WHAT IS THE PROBLEM?

    THANK YOU.

  • ajoel122094 Nov 28, 2009

    from scanner

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4 Answers

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Ues that is fine. it call for 5 ohms and with the leads 5.5 is fine. i chased one of these and it drove me nuts. what i ended up having to do is send the customer to the dealer to get an update for the computer. but there is a big list of thing to check before you should do that. if you have a fax i can send you the step by step for it. but i can only fax due to the rules of the site. so let me know if you want it.

do you have p0748 in computer? is that why you are checking this sensor?

Posted on Nov 28, 2009

  • 1 more comment 
  • michael schultz
    michael schultz Nov 28, 2009

    a rev up and down is common on honda and most cases if the temp sensor. but sounds like you have some timing issue's to work out first!

  • michael schultz
    michael schultz Nov 28, 2009

    code p2646 is " vtec oil pressure switch circuit low voltage"

    where did you get your description from?


  • michael schultz
    michael schultz Nov 28, 2009

    well when i look up that code in alldata it shows me it has to do with oil pressure sensor low voltage.

    can you double check the code and what kind of scanner are you using? global obd 2? may be false


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While driving if the gear does not change.this is a transmission problem. ----- get your car checked at car diagnosis center.to get the codes.as per that you can replace the exact faulty part with confirmation.and at www.autozone.com its absolutely free to get car diagnosed.also they sell parts so you can get the codes checked and replace the faulty part. ------- This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya.

Posted on Nov 19, 2009

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  • charlymonty Nov 24, 2009

    thanks for keeping updated.good to know that it worked for you. please do rate the solution positively .thank you for using fixya.

  • charlymonty Nov 24, 2009

    Idle control unit. it's under the throttle body. Has three hoses. take it off . don't lose the springs. One end has a cover, take it off. you will see nylon cap w/slots on either side. the nylon piece is the problem. take it apart and clean it. when you put it together dab a little lock-tite on the threads. tighten, then back off one turn .


    The throttle position sensor controls that. When they go bad, your idle will go up and down like that.
    check out.thanks for keeping updated.

  • charlymonty Nov 28, 2009

    the error code which you mentioned is for oil problem in the car.

    displaying code P2646 (VTEC Oil Pressure Switch Circuit Low Voltage)

    either the oil is low check out.or the oil is dirty and not getting passed from the filter.in either of the case oil filter needs replacement.first check out oil if its low fill the oil and check out if still the error shows that means oil filter needs replacement.if the oil is dirty replace the oil and oil filter both.if the oil is good only replace the oil filter.

    This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya.

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3 to 10 ohms is the correct value so your ok. Next step is to follow the wires to the PCM and check resistance for poor connections. If its all ok then you may have PCM issue. This may be an intermittant issue so try unplugging the connector on the computer, inspect connector for any backed off connectors inside. Reconnect, clear codes, test drive.

Posted on Nov 18, 2009

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  • Ernset ( Skip ) Bouvette

    Your going to need alot more info than we can supply on this site. You will need wiring diagrams and troubletree procedures. You can go to alldata.com and for 27 bucks you can buy all the info a shop has and have access for 1 vehicle for a full year. This is your best bet. Or the library may have Mitchell for free

  • Ernset ( Skip ) Bouvette

    no it does not, Trans goes directly into a computer except any grounds that would be attached to the body or frame

  • Ernset ( Skip ) Bouvette

    Yes, engine drivability issues can cause a trans to malfunction. I would definately address the engine first. Alldata has all the timing marks and procedures if your interested

  • Ernset ( Skip ) Bouvette

    noone can assume anything as long as your saying you may of done the timing wrong. If this condition your describing wasnt a problem before you did this all we can do is make sure what you did is corrct before proceding. With all the infio you have told me noone is going to be able to give you a definate answer on why anything is happening. A shop has thousands of dollars in diagnostic equipment that still can confuse the brightest. And you want us to guess. Sorry, no more I can do for you

  • Ernset ( Skip ) Bouvette

    a chasing idle is usually a vacuum leak of some soort. But if the timing is off this also can cause this. If your not burning fuel because the timing is off then you will have excess air passing the 02 sensor . The PCM will add fuel but he PCM wants to keep preprogrammed RPM level because of the throttle position the PCM will them take fuel away. This happens over and over again till it can find a balance point which it cant if the timeing is way off.

  • Ernset ( Skip ) Bouvette

    be sure to drive car to get it to relearn. This may help the idle issue if nothing is really wrong

  • Ernset ( Skip ) Bouvette

    there is a possiblility that there is an PCM update for this issue. You going to have to call the dealer to find out. Cars these days cannot be accurately diagnose without access to all the information at hand. This car is to new to be trying to fix yourself. Even for an experienced tech figuring out what is wrong takes time. We too are asking for solutuons that noone has at times. Your not going to fix this vehicle on this site for the 3 bucks that the person you pick is going to get. This site does not have all the answers and can cost you alot more aggravation that its worth.

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It should read 1.7- 3.0 Ohms. 5.5 is a high reading. Replace it.

Posted on Nov 25, 2009

  • Roger Campbell
    Roger Campbell Nov 28, 2009

    You ask a single question.... its answered. 100% true and correct. The bad review hurts more than the non payment for services. when you ask a question please ask what you really want we are not mind readers. if you do require more info please ask just dont give bad reviews and assume its all we know. Hope you dont throw to much money at it. best of luck.

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