2003 Nissan Altima idle problems

We have in our shop a Nissan Altima 2,5 2003 with too high idle,check engine light on and the error code is :P0507 idle air control system RPM Higher than expected.
If we delete the error the car run good with the properly idle around 1300 rpm until that' warm,when the coolant reach the regular warm temperature idle is regular around 900 rpm only with AC working.when the compressor disconnect the idle run around 1200/1300 rpm and the engine light switch on again.Definately there aren't leaks in the intake manifold,or vacuum hoses or similar problems.
Someone know how fix this problem,and anyway what' the procedure to reset the idle?
Thanks to everybody

try cycleing key on for one second and off for 10 seconds three times. this may reset idle air volume learn. if you have used any type of fuel induction cleaner, good luck, because we have seen this cause problems in any nissan with drive by wire setups. you can also try disconnecting both battery cables and touching them together for 10 seconds. this is supposed to cleared all self learn settings back to 0.

Thanks Nissandoc for your answer.We don't know the history of this Altima cause come from an auction.Anyway don't seems to me that someone have used induction cleaner.I had already try to reset turning the key 2/3 times and wiating 10/30 seconds each time but I haven't had any result/I'll try to disconnect the battery cables and short the two pole as your suggestion,and,if I don't obtain results need I replace the throttle body?
Thanks

one other thing you can try is "throttle valve closed position learn". first make sure that engine and trans are at full operating temp, all electrical loads off and trans in park.

1. turn ignition off and wait at least 10 seconds.
2. accelerator pedal fully released, turn ignition on and wait 3 seconds.
3. fully depress and then release accel pedal 5 times within 5 seconds.
4. wait 7 seconds, fully depress the accel pedal and hold it for approx. 20 seconds until the MIL stops blinking and turned ON.
5. fully release accel pedal within 3 seconds after the MIL goes off.

let me know how it goes.

Thanks nissandoc,the procedure has worked properly,now the idle is correct.Ask me suggestion about Ferrari/BMW if you need,just to "rechange"

glad i could help. i should get a star or smiley face or something. who do i talk to about that?

whats up nissandoc! i have a 02 3.5se auto & it wont rev past 2500 rpm any thoughts?

Hey Nissandoc, i have a 2000 infiniti G20 and in first gear the car pulls almost like it doesnt have enough air and the diognostic brought up a code P0505 Idle Air Control Valve / Auxiliary Air Control Valve. I called Infiniti and they said i had to take it to a dealer and get them to program the idle air volume and it wasn't the valve. Its sounds like you know what your talking about, hope you can help

You Can Try The Same Procedure As Described Above To Set The Iavl. However This Code Shouldnt Have Anything To Do With A Driveability Issue. You Should Have Someone With The Correct Scanner Equipement To Monitor The A/f Alpha And Air Flow Grams Readings. To High Readings And You'll Need An Air Flow Meter. Alpha Should Be Between 95-105% And Grams 3-4. IF THE P0505 CODE CONTINUES THEN YOU'LL NEED A THROTTLE BODY.

hi i hace a similar problem but mine its a altima 98 when i start the car in the morning or when i turn the ac on the rpm goes down and it feels like the car try to shut down itself, i have change the idle air valve already but the problem still i hope u guys could help me thanks

crank position sensor help

We have in our shop a Nissan Altima 2,5 2003 with too high idle,check engine light on and the error code is :P0507 idle air control system RPM Higher than expected.
If we delete the error the car run good with the properly idle around 1300 rpm until that' warm,when the coolant reach the regular warm temperature idle is regular around 900 rpm only with AC working.when the compressor disconnect the idle run around 1200/1300 rpm and the engine light switch on again.Definately there aren't leaks in the intake manifold,or vacuum hoses or similar problems.
Someone know how fix this problem,and anyway what' the procedure to reset the idle?
Thanks to everybody


replaced throttle chamber then relearn idle, sure fix!!!!

well i changed the idle valve already even the crank sensor but still it's driving me crazy

Hey, new guy here with an infiniti g20 problem. I have an idle problem that I spoke to the dealer about and his service history said bad aux air control valve. Got one, but can't find where it goes. This is my daughters car and I don't have any repair manuals with diagrams. I'm hoping I dojn't have to tear the whole top end apart to replace this thing. Can you please help?
Thanks.

Hi Nissandoc,

When you said 'turn ignition on', you did not mean crank up the engine right?

When I tried with the engine off, the MIL is not blinking. Did I miss something?



Thanks.



one other thing you can try is "throttle valve closed position learn". first make sure that engine and trans are at full operating temp, all electrical loads off and trans in park.

1. turn ignition off and wait at least 10 seconds.
2. accelerator pedal fully released, turn ignition on and wait 3 seconds.
3. fully depress and then release accel pedal 5 times within 5 seconds.
4. wait 7 seconds, fully depress the accel pedal and hold it for approx. 20 seconds until the MIL stops blinking and turned ON.
5. fully release accel pedal within 3 seconds after the MIL goes off.

let me know how it goes.

Thanks for all the help, nissandoc, but it didn't quite work for me, either. I got the flashing then steady MIL, but it didn't go out after 3-4 minutes. How long should I wait with the throttle down (engine is not running..)? Or do I release the accelerator wihtin 3 sec after the MIL goes steady after blinking? I have a stick shift, with the clutch in while doing your sequence. Is that right for the manual trans?
Also, I have been having hesitation once about 3-5 minutes after I move out after restart/start. Every time. Then runs fine. Checked other forums and seemed that maybe I needed new plugs and PCV (117K miles, never tuned up). Changed them and now the car surges 300-400 RPM at idle, cycling up for about 5 seconds, then down for 15 seconds...
Thanks for any help.

HEY NISSAN DOC, CAN I GET SOME HELP PLEASE!
04 Altima, P0507, Tried changing Idler Controller on TB and did the"throttle valve closed position learn"
actually... my MIL did not go off either, it went steady and then didnt do anything

Hi Nissandoc,

When you said 'turn ignition on', you did not mean crank up the engine right?

When I tried with the engine off, the MIL is not blinking. Did I miss something?



Thanks.

Hi I have 2005 Altima and same problem - I do the procedure on a list but get stuck where I have to wait 7 seconds. it blinks after that about 7 seconds and then tha MIL is on and doesnt turn off no matter how long i hold acc down. Please help what to do

Thank you

This problem was driving me crazy, too, and I finally got it fixed. For free. At home.
Here's the procedure I found at another forum with some extra info (in red). It didn't work the first time through, so I started over at Step 1. Then it worked. The MIL - or Service Engine Soon (SES) -- didn't stop blinking and go out for me - it stayed on steady. So when it stops blinking - whether it stays off or on - just stops blinking, then make sure that within the next 3 seconds you fully release the accelerator and start your engine. Do NOT turn the ignition off and then back on - just crank the rest of the way. Let it run with the accelerator pedal released and after a little bit the idle will go down. You'll still have to clear the code. But I cleared it 10 days ago on my car and it's still not back on and idling low. I had to deal with this for the past 3 years so I understand how aggravating it can be. Also, use a stopwatch or timer (my kitchen timer doesn't show seconds, but the flashing dots between hour and minute flash at exactly one second. That's what I used) or digital watch to check time. When he says, "at least" give an extra second or two. When "exactly," do it at exactly that amount of time. It works! Here's the solution I found:

ENGINE COLD
Perform "Accelerator Pedal Released Position Learning" .
Make sure that accelerator pedal is fully released.
Turn ignition switch “ON” and wait at least 2 seconds.
Turn ignition switch “OFF” wait at least 10 seconds.
Turn ignition switch “ON” and wait at least 2 seconds.
Turn ignition switch “OFF” wait at least 10 seconds.
WAIT over 10 seconds before this next step.
Perform "Throttle Valve Closed Position Learning" .
Make sure that accelerator pedal is fully released.
Turn ignition switch “ON”. WAIT EXACTLY ONE SECOND SHARP. Turn ignition switch “OFF”
THEN wait at least 10 seconds.
Make sure that throttle valve moves during above 10 seconds by confirming the operating sound. - Very hard to hear anything at all. Just believe this is happening by faith.Now, here's the big change
Start engine and warm it up to normal operating temperature.AND RIDE YOUR CAR FOR AT LEAST 15 MINUTES, this will make for correct operating temperatures to happen within the engine for the following steps. Warming your car in the garage in the morning aparently does not cut it.


Check that all items listed under the topic “PREPARATION” (previously mentioned) are in good order.
Turn ignition switch “OFF” and wait at least 10 seconds.
Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
Repeat the following procedure quickly five times within 5 seconds.
Fully depress the accelerator pedal. Fully release the accelerator pedal.
Wait 7 seconds
Fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops blinking and turns ON.
Fully release the accelerator pedal within 3 seconds after the MIL goes off. Start engine and let it idle. THE ENGINE MUST BE STARTED WITHIN THE 3 SECONDS AFTER IT STOPS BLINKING, THATS HOW THIS LIGHT GOES OFF. THE SERVICE MANUAL DOES NOT STATE THIS, BUT IF YOU LOOK AT THE DIAGRAM WHERE THE ENGINE LINE ON-OFF IS, IT CLEARLY SHOWS YOU SHOULD TURN IT ON WITHIN THESE THREE SECONDS. This is where your engine will start to learn the correct idle settings
Wait 20 seconds.
Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.

2006 altima , just clean trottel body with carb cleaner and tooth brush , now it idle , form 1000 to 2000 , i have treid the on , off ,, hit pedal 5 times in 5 sec etc ,, didnt work used timer and have tried twnty time with no luck ,,, need help please thanks joe

Hi how are you doing . I recently had my inspection done at some shop . My SES light was on and in order to past the guy said he had to correct the code something i shouldnt have never let these guys do. The light went away the car idle went down from 1200 rpm down to 1000 even but when i drove off my rpms were delaying from when i go 0 to 20 then a nother delay 0 to 37 another delay and the rpm hesistates, then when i got home after a half an hour of driving the SES light came on . i have the 4spd auto . its like the car is fighting it ,so you feel a slight hesitation at 20mph then another one at 37mph sometime hesitation at high speed . I replace the throttle body back in sept i didnt have this problem. Should i let nissan just do a ecu relearn cause on the eve of thanksgiving this guy at nissan removed the SES light and the car idles correctly but when i drive 0 to 20 hesitation is still there . I also wanted to know at half of full throttle from 0 to 40mph is my car suppose to go 0rpm to 6000k rpms . i have watched alot of stock cars like mine 2003 altima se do 0 to 40 hit 6k rpms on youtube and my car shifts at 5k rpms at full throttle . please let me know thanks. im alix by the way:smile:

one other thing you can try is "throttle valve closed position learn". first make sure that engine and trans are at full operating temp, all electrical loads off and trans in park.

1. turn ignition off and wait at least 10 seconds.
2. accelerator pedal fully released, turn ignition on and wait 3 seconds.
3. fully depress and then release accel pedal 5 times within 5 seconds.
4. wait 7 seconds, fully depress the accel pedal and hold it for approx. 20 seconds until the MIL stops blinking and turned ON.
5. fully release accel pedal within 3 seconds after the MIL goes off.

let me know how it goes.
Hi there, I have same problem. I followed your steps. MIL starts blinking but then goes solid. I also replaced throttle base but problem persists. Idle revs up and down. I did battery terminal reset, I also cleaned Mass air flow sensor. Any other suggestion. Thanks

I also have same problem. And I followed your steps. The Service Engine Soon light stays solid, never blinks then clears when engine is running. I also replaced throttle body but problem got worse. Idle revs up and down is more pronounced. I removed battery terminals and let it sit overnight. I also cleaned the mass air flow sensor. More suggestion please.

This is copied from manual for the I35 (2002 - 2004) which is probably applicable to some Nissan vehicles.

NOTE:
I It is better to count the time accurately with a clock.
I It is impossible to switch the diagnostic mode when an
accelerator pedal position sensor circuit has a malfunction.
NOTE:
Before perform “Idle Air Volume Learning”, make sure that “Accelerator
Pedal Released Position Learning” and “Throttle Valve
Closed Position Learning” are completed.
If not, perform “Accelerator Pedal Released Position Learning”,
EC-71 and “Throttle Valve Closed Position Learning”, EC-71.
1. Start engine and warm it up to normal operating temperature.
2. Check that all items listed under the topic “PRE-CONDITIONING”
(previously mentioned) are in good order.
3. Turn ignition switch “OFF” and wait at least 10 seconds.
4. Confirm that accelerator pedal is fully released, turn ignition
switch “ON” and wait 3 seconds.
5. Repeat the following procedure quickly five times within 5 seconds.
1) Fully depress the accelerator pedal.
2) Fully release the accelerator pedal.
6. Wait 7 seconds, fully depress the accelerator pedal and keep
it for approx. 20 seconds until the MIL goes off.
7. Fully release the accelerator pedal within 3 seconds after the
MIL goes off.
8. Start engine and let it idle.
9. Wait 20 seconds.
SEC897C
10. Rev up the engine two or three times and make sure that idle
speed and ignition timing are within the specifications.
ITEM SPECIFICATION
Idle speed 675±50 rpm (in “P” or “N” position)
Ignition timing 15±5° BTDC (in “P” or “N” position)

nissandoc


Just thought I'd say thank you for saving me a trip to the dealer and a couple hundred dollars! :thumbsup:

Thanks to everybody

You Can Try The Same Procedure As Described Above To Set The Iavl.