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p0507 on my g35 help?

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Old 10-10-2007, 10:22 AM
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Angry p0507 on my g35 help?

I cleaned my throttle body and i get P0507 Idle Speed Control System. The idle is highno . I have used my obd2 reader to erase code but it still comes back. What should i do


2003 g35 6mt
Old 10-10-2007, 04:10 PM
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Your FSM has proceedures to diagnose and repair each code. Download and study the recalibration proceedure.

Direct spraying can sometimes damage the TB sensors requiring replacement of the entire unit. Important to read FSM totally before doing destructive things.

You may be lucky and only require a dealer idle speed relearn proceedure.
IDLE SPEED CHECK
1. Run engine at about 2,000 rpm for about 2 minutes under no-load.
2. Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed for about
1 minute.
3. Check idle speed.
OK or NG
OK >> GO TO 10.
NG >> GO TO 4.

4. PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1. Stop engine.
2. Perform EC-668, "Accelerator Pedal Released Position Learning" .
>> GO TO 5.

5. PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-669, "Throttle Valve Closed Position Learning" .
>> GO TO 6.


6. PERFORM IDLE AIR VOLUME LEARNING
Perform EC-669, "Idle Air Volume Learning" .
Which is the result CMPLT or INCMP?
CMPLT or INCMP
CMPLT>> GO TO 7.
INCMP >> 1. Follow the construction of “Idle Air Volume Learning”.

__________________________________________________ ______
Accelerator Pedal Released Position Learning UBS0035C
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 UBS0035D
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”.
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 UBS0035E
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 - 100C (158 - 212F)
 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 with CONSULT-II, drive vehicle until “FLUID TEMP SE” in “DATA MONITOR” mode of “A/
T” system indicates less than 0.9V.
For A/T models without CONSULT-II and M/T models, drive vehicle for 10 minutes.
OPERATION PROCEDURE
EC-670
Without CONSULT-II
NOTE:
 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-668, "Accelerator Pedal Released Position Learning" .
2. Perform EC-669, "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 “PRE-CONDITIONING” (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 MIL stops
blinking and turned ON.
9. Fully release the accelerator pedal within 3 seconds after the MIL 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, the result will be incomplete. In this case,
find the cause of the problem by referring to the “DIAGNOSTIC PROCEDURE” below.
DIAGNOSTIC PROCEDURE
If idle air volume learning cannot be performed successfully, proceed as follows:
1. Check that throttle valve is fully closed.
2. Check PCV valve operation.
3. Check that downstream of throttle valve is free from air leakage.
4. When the above three items check out OK, engine component parts and their installation condition
are questionable. Check and eliminate the cause of the problem.
It is useful to perform EC-752, "TROUBLE DIAGNOSIS - SPECIFICATION VALUE" .
5. If any of the following conditions occur after the engine has started, eliminate the cause of the problem and perform “Idle air volume learning” all over again:
– Engine stalls.
– Erroneous idle.
ITEM SPECIFICATION
Idle speed M/T: 70050 rpm
A/T: 70050 rpm (in “P” or “N” position)
Ignition timing M/T: 155 BTDC
A/T: 155 BTDC (in “P” or “N” position)
SEC897C
Old 02-29-2008, 05:00 PM
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so what if this doesnt help? ive done all the resets and even used a MODIS scanner to diagnose and clear them.... still comes on I had code p1122 then p0507, and now im bout to go see what it is now
Old 02-29-2008, 07:57 PM
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ok so now i went to the nissan dealership here, the closest infiniti dealership is 2.5 hrs away.... i took it there for them to do the idle relearn with the "special computer" they have..... well after 2 hrs of trying they couldnt get it to return to normal idle either...... they told me it was my TB acuator and it was $380 bucks... i laughed and left.... so now i guess im looking for a Used TB...
Old 02-29-2008, 08:00 PM
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Im thinking i should just do the idle air volume reset in the morn B4 i go to the panhandle Z/G meet... i figure do the reset and drive the 100 or so miles to P'cola and maybe it will relearn itself.... After i do the pedal reset for it, it stay at 800 rpms at idle but if i turn the car off it goes back to 1050-1400 when i start it up again.......so if it actually was my acuator, then why would the pedal idle air reset work til i turned the car off?
Old 02-29-2008, 08:23 PM
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I have one but the plug is slightly damaged. If you swapped a piece of plastic from yours, it would be fine. LMK.
Old 02-29-2008, 08:25 PM
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how much you want for it shipped to 32444... then i could see if thats really my problem
Old 04-08-2014, 01:19 AM
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did you ever figure out your problem?
Old 04-08-2014, 11:48 PM
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P0507

I realize this is an old thread but I read several threads about this and I can't tell if the issue is resolved. This happened to me this weekend. I was replacing my spark plugs at 100,000 miles and noticed the throttle body was dirty, it has never been cleaned. I did not know the issue with the TB so I just cleaned it without disconnecting the battery or unplugging the TB. Of course this led to the high idle and the SES light and P0507 code, I have a code reader. After reading several threads on this site I decided to try the reset. The instructions on here are a little confusing and I could not get it to work. However I found a youtube video of it and it worked and the cars runs as good as ever. I did the following:

1. Warmed the car up by driving to work, about 30 minutes.
2. Parked making sure the front wheels are straight ahead and everything is off, I.e. Radio, lights, wipers, heater, etc. as instructed by the youtube video. This seems to matter because the reset did not work before I did this.
3. Shut the engine off, waited 10 secs.
4. Turn the key to on, waited 3 secs
5. Turned the key to off, waited 10 secs
6. Turned the key to on, waited 3 secs
7. Turned the key to off, waited 10 secs
8. Turned the key to on, waited 3 secs
9. Turned the key to off, waited 10 secs
10. Turned key to on, waited 3 secs
11. Stomped on and released the accelerator pedal 5 times in 5 seconds, waited 7 to 8 secs
12. Depressed and held down the acc pedal for about 18 secs, the light started blinking around 10 secs and then stopped at around 18 secs, released the pedal as soon as it stopped blinking,
13. Started the engine, do not turn the key off first before starting the engine, as soon you release the pedal turn the key to the right to start the engine. I screwed this up a couple times.

That was it, now everything is fine. I deleted the SES code with my reader.
Old 05-20-2014, 12:11 AM
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Thank you Patrick, I got it. I love you.
Old 07-21-2014, 12:07 AM
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That youtube video Patrick 13116 was talking about is this, the subject in question starts on 2:35
Old 06-21-2015, 04:19 AM
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Patrick, you have saved my life!

The first method that Q45tech mentioned above is everywhere that always makes me failed.

I got a lesson that old path is always true.

It works! Thank you so much!
Old 08-15-2016, 04:37 PM
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Quote:
Originally Posted by patrick13116 View Post
I realize this is an old thread but I read several threads about this and I can't tell if the issue is resolved. This happened to me this weekend. I was replacing my spark plugs at 100,000 miles and noticed the throttle body was dirty, it has never been cleaned. I did not know the issue with the TB so I just cleaned it without disconnecting the battery or unplugging the TB. Of course this led to the high idle and the SES light and P0507 code, I have a code reader. After reading several threads on this site I decided to try the reset. The instructions on here are a little confusing and I could not get it to work. However I found a youtube video of it and it worked and the cars runs as good as ever. I did the following:

1. Warmed the car up by driving to work, about 30 minutes.
2. Parked making sure the front wheels are straight ahead and everything is off, I.e. Radio, lights, wipers, heater, etc. as instructed by the youtube video. This seems to matter because the reset did not work before I did this.
3. Shut the engine off, waited 10 secs.
4. Turn the key to on, waited 3 secs
5. Turned the key to off, waited 10 secs
6. Turned the key to on, waited 3 secs
7. Turned the key to off, waited 10 secs
8. Turned the key to on, waited 3 secs
9. Turned the key to off, waited 10 secs
10. Turned key to on, waited 3 secs
11. Stomped on and released the accelerator pedal 5 times in 5 seconds, waited 7 to 8 secs
12. Depressed and held down the acc pedal for about 18 secs, the light started blinking around 10 secs and then stopped at around 18 secs, released the pedal as soon as it stopped blinking,
13. Started the engine, do not turn the key off first before starting the engine, as soon you release the pedal turn the key to the right to start the engine. I screwed this up a couple times.

That was it, now everything is fine. I deleted the SES code with my reader.


I just came back from the mechanic. He cleaned out my throttle body and MAF sensor on Friday. Saturday morning I noticed my car has a hiccup almost like hesitation special when in complete stop. I called him up he said to bring it back. Hook up code reader. I have 2 codes. P0507 - P0507 idle higher . We deleted the code. Sunday night my Service Engine Soon light came on. Today 8/15/16, I swapped out the MAF sensor with the 350z. The codes are still there. I have him deleted them again, drove for about 40mns now. No light, but hesitation. So, ill try that method Patric11316 tonight and see what's up. I'll let you know if it solved mine. Maybe anyone's can try it as well.
Old 08-17-2016, 12:34 AM
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Seems a common issue after cleaning the TB. If you move the throttle body plate with the engine off it can strip the gears in it. And you'll never get the idle right again. Very common problem with the DBW throttle bodies on the VQ35 Maximas. Best way is to turn on the ignition but don't start the car, then have someone work the gas pedal while you clean the throttle body.
Old 07-01-2017, 06:39 PM
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Don't want to bring this from the dead but I am sure this info will help someone else.

Had the same issue when I cleaned my throttle body. The vehicle was idling too high. Did the pedal reset method that was provided in this thread. The check engine light still remained and I had to go in and manually delete it. Drove around for a day or so and it came back on. Proceeded to do the pedal reset again and this time I didn't delete the code. Drove around again for a day and the SES light turned off.

Has not came back on yet but the car doesn't idle as low as it use to so we will see.

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air, body, cleaned, code, g35, idle, infiniti, learn, location, p0507, pcv, throttle, trouble, valve, volume
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