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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re: Engine Revs not dropping off
Hi Brendan,
You're not the first one to experience the gear change issues and revs increasing slightly. This has been discussed in THIS and according to Nissan seems to be normal for the Manual exy.
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13/Aug/2007, 6:29 pm
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Eggins
X-TRAIL ENTHUSIAST
Date Registered: 08-2004
Location: Brisbane
TOTAL POSTS: 184
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Re: Engine Revs not dropping off
You need to do the relearn procedures from the electronic service manual in this specific order:
1 pedal released position
2 throttle closed
3 idle air volume
Important:
1 you can do the first two any time
2 the Idle Air has prerequisites ie: engine and trans warmed up, all electrical loads off, air-con off
3 stopwatch
Accelerator Pedal Released Position Learning
DESCRIPTION
“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.
OPERATION PROCEDURE
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” wait at least 10 seconds.
4. Turn ignition switch “ON” and wait at least 2 seconds.
5. Turn ignition switch “OFF” wait at least 10 seconds.
Throttle Valve Closed Position Learning
DESCRIPTION
“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.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch “ON” wait at least 10 seconds.
3. Turn ignition switch “OFF” wait at least 10 seconds.
Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.
Idle Air Volume Learning
DESCRIPTION
“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:
Each time electric throttle control actuator or ECM is replaced.
Idle speed or ignition timing is out of specification.
PREPARATION
Before performing “Idle Air Volume Learning”, make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
Battery voltage: More than 12.9V (At idle)
Engine coolant temperature: 70 - 100°C (158 - 212°F)
PNP switch: ON
Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, set lighting switch to the 1st position to light
only small lamps.
Steering wheel: Neutral (Straight-ahead position)
Vehicle speed: Stopped
Transmission: Warmed-up
For A/T models without CONSULT-II and M/T models, drive vehicle for 10 minutes.
It is better to count the time accurately with a clock.
It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit
has a malfunction.
1. Perform EC-449, "Accelerator Pedal Released Position Learning" .
2. Perform EC-449, "Throttle Valve Closed Position Learning" .
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 within 3 seconds after the MI goes off.
10. Start engine and let it 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
13. If idle speed and ignition timing are not within the specification, “Idle Air Volume Learning” will not be carried
out successfully.
This will fix it, or next service get your dealer to do it using the ConsultII unit.
--- Shawn and Belinda Eggins
2003 STR, K&N, Strut brace, Ground wires, Dunlop LM702's, Tint, Mud flaps, Tow, Nudge, Spots, Mats, Rear scuff plate
http://eggins.synthasite.com/
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13/Aug/2007, 9:39 pm
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Eggins
X-TRAIL ENTHUSIAST
Date Registered: 08-2004
Location: Brisbane
TOTAL POSTS: 184
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Re: Engine Revs not dropping off
Oh yeah, and it's hard to do! Don't be surprised if it takes you three goes to get the Idle Air process started.
--- Shawn and Belinda Eggins
2003 STR, K&N, Strut brace, Ground wires, Dunlop LM702's, Tint, Mud flaps, Tow, Nudge, Spots, Mats, Rear scuff plate
http://eggins.synthasite.com/
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13/Aug/2007, 9:44 pm
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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re: Engine Revs not dropping off
Alternatively, take it to the dealer to do the idle re-learn in 10 minutes for 10 bucks
P.S. Shawn, I hope you didn't spend too much effort typing all this up, as we already have a DIY Guide for this HERE and it is part of the DIY Guides Section of the forum.
Last edited by jalalski, 13/Aug/2007, 9:56 pm
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13/Aug/2007, 9:51 pm
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Eggins
X-TRAIL ENTHUSIAST
Date Registered: 08-2004
Location: Brisbane
TOTAL POSTS: 184
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Re: Engine Revs not dropping off
The power of copy and paste.
I thought it would be handy right here in this thread, since it relates so directly to the subject.
--- Shawn and Belinda Eggins
2003 STR, K&N, Strut brace, Ground wires, Dunlop LM702's, Tint, Mud flaps, Tow, Nudge, Spots, Mats, Rear scuff plate
http://eggins.synthasite.com/
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13/Aug/2007, 10:02 pm
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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re: Engine Revs not dropping off
No worries Shawn, but we can link existing DIY Guide to threads too. Makes it easier to print should one decides to print the information and take it with them to perform the procedure.
Just a thought for the future.
P.S. The service manual has a mistake in one of the steps under the "idle Air Volume Learning" and this mistake has been corrected in the pdf file I posted.
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13/Aug/2007, 10:10 pm
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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re: Engine Revs not dropping off
Brendan,
The idle re-learn can be performed by any dealer at any time, so just drop-in at your local dealer and explain the situation and they can do it then and there.
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14/Aug/2007, 11:10 am
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