help..carb cleaner on nissan xtrail

**ratchet23** · July 9th, 2010 08:27 PM

mga masters, yung '06 nissan xtrail namin nanginginig kapag pagshift sa D (matic). sabi nila, clean throttle body lang daw with carb cleaner. we sprayed carb cleaner on it while the engine is off.. pagstart, sobrang taas idling. 1500 rpm.. tumawag kami sa casa sabe dapat daw i reset sa computer dahil talagang "wild" daw ang rpm pag hindi. computer reset is 2.5k daw. help po..

**joyluck614** · July 9th, 2010 08:30 PM

Hindi ba puwedeng bunutin muna ang negative ng battery tapos connect after ilan minutes para ma relearn un idle?

**ratchet23** · July 9th, 2010 08:45 PM

tinry na din nung tito ko yan, (mechanic ng chevy sa middle east,he's on vacation) sinabi niya bago namin inisprayan ng carb cleaner na sa ibang mga chevy doon, suburban,tahoe,trailblazer, kelangan talagang iset ulit sa computer para mag normal idling. yung iba or older than the 07 models hindi daw. kaya tinry namin sa xtrail since it's engine is old na. ayun nanga nangyari.

wala ba iba solution? nagoogle ko kasi na talagang high rev pag bagong spray ng carb cleaner. TY!

**Jiggs** · July 9th, 2010 08:51 PM

grabe naman bro yan Casa na yan. ECU diagnostic/reset ng European Cars ang Presyo. My car is a honda Php350+ lang yun ecu diagnose and reset. Now with the powers of google I've learnt that the ECU reset is very easy lang pala...tama si joyluck614..that's just basically like pulling the plug of your PC..by doing that all the alarms will be purged and reset You just have to relearn the idling of the car. This is best done kpag ang engine is warm, let the ECU relearn the idle of the car for at least 15mins. na wlang engine load i.e. headlights, stero,A/C. warning nga pala..kapag pull of batt. terminals mareset din lahat mga stereo settings and odometer readings mo. meron Fuse ng ECU try to find it normally rated 15amps para simple and no batt. disconnection.

One thing nga pala...hindi mo yata sinunod ang instruction sa can ng Carb Cleaner..spray in an intermittent burst while the engine is running and warmed up..tapos rev. up. Hope this helps.

**ratchet23** · July 9th, 2010 09:14 PM

nga eh..2500 talaga daw reset e. di nga nafollow instructions. pano ba tamang pag clean? medyo nagwoworry lang ako at balita ko e sirain maf sensors ng XTrail.

**ratchet23** · July 10th, 2010 01:51 PM

problem solved.
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QR25DE/QR20 Engine Idle Re-Learn Procedure

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Accelerator Pedal Released Position Learning
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DESCRIPTION
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Accelerator Pedal Released Position Learning is an operation to learn the fully released position of the
accelerator pedal by monitoring the accelerator pedal position sensor output signal. It must be
performed each time harness connector of accelerator pedal position sensor or ECM is disconnected.

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OPERATION PROCEDURE
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1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON and wait at least 2 seconds.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and wait at least 2 seconds.
5. Turn ignition switch OFF and wait at least 10 seconds.

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Throttle Valve Closed Position Learning
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DESCRIPTION
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Throttle Valve Closed Position Learning is an operation to learn the fully closed position of the throttle
valve by monitoring the throttle position sensor output signal. It must be performed each time harness
connector of electric throttle control actuator or ECM is disconnected.

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OPERATION PROCEDURE
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1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.

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Idle Air Volume Learning
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DESCRIPTION
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Idle Air Volume Learning is an operation to learn the idle air volume that keeps each engine within the
specific range. It must be performed under any of the following conditions:

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_ [/SIZE]

[/SIZE]

[SIZE=3][SIZE=3]Each time electric throttle control actuator or ECM is replaced.

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_ [/SIZE]

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[SIZE=3][SIZE=3]Idle speed or ignition timing is out of specification.

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Without CONSULT-II
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NOTE:
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_ [/SIZE]

[/SIZE]

[SIZE=3][SIZE=3]It is better to count the time accurately with a clock.

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_ [/SIZE]

[/SIZE]

[SIZE=3][SIZE=3]It is impossible to switch the diagnostic mode when an accelerator pedal position sensor
circuit has a malfunction.

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1. Perform [/SIZE]

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[SIZE=3][SIZE=3][SIZE=3]EC-501, [/SIZE][/SIZE][/SIZE][SIZE=3][SIZE=3][SIZE=3]"Accelerator Pedal Released Position Learning" [/SIZE][/SIZE][/SIZE][SIZE=3][SIZE=3](see above procedure)
2. Perform [/SIZE][/SIZE][SIZE=3][SIZE=3][SIZE=3]EC-502, [/SIZE][/SIZE][/SIZE][SIZE=3][SIZE=3][SIZE=3]"Throttle Valve Closed Position Learning" [/SIZE][/SIZE][/SIZE][SIZE=3][SIZE=3](see above procedure)
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic PREPARATION (previously mentioned) are in good order.
5. Turn ignition switch OFF and wait at least 10 seconds.
6. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
7. Repeat the following procedure quickly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
8. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MI
stops blinking and turned ON.
9. Fully release the accelerator pedal once MIL is ON and within 3 seconds start the car.
10. Let engine idle.
11. Wait 20 seconds.
12. Rev up the engine two or three times and make sure that idle speed and ignition timing are within
the specifications (see below).
13. If idle speed and ignition timing are not within the specification, Idle Air Volume Learning will not be
carried out successfully. In this case, please take the car to your nearest dealer to perform the required
diagnostics and idle relearn using Consult II

[/SIZE][/SIZE]ITEM SPECIFICATION
Idle speed QR25DE: 700

+/-50 rpm [in P or N (A/T), Neutral (M/T) position]
Ignition timing M/T: 15+/-5° BTDC (in Neutral position)

A/T: 15+/-5° BTDC (in P or N position)

**Jiggs** · July 10th, 2010 05:01 PM

ayush....nakalibre na ung special daw reset ng casa

...sabi ko sau sa powers ng google hehehehe..about naman sa MAF sensor...totoo nga na sensitive yan kaya dapat pili ka lang ng Carb cleaner na friendly sa mga MAF sensor..don't just spray any ordinary Carb Cleaner. tska follow mo lang ang procedure, it's right there prinited on the cans.