VIDEO 2003-2007 Infiniti G35 Throttle Body Replacement & Cleaning Procedure

[mbian]

Hey Infinitiexpert,

There are some conditions for Idle Air Volume Learning from service manual as below:
- Battery voltage: More than 12.9V (At idle)
.....
- PNP switch: ON (5AT only) **or** Shifter: Neutral w/ Clutch: IN (6MT only)
........
- Vehicle speed: Stopped
- Transmission: Warmed-up (For A/T models, drive vehicle for 10 minutes.)

My question is what is PNP switch, and how can I set it on?

Thanks!

Originally Posted by Infinitiexpert

The throttle valve closed position learning may be difficult to complete, and sometimes you have to do it several times.

Try disconnecting the car battery for about 30 minutes and do all the process again.


Accelerator Pedal Released Position Learning

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

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.

Target Idle Speed

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.

650 ± 50 rpm (in “P” or “N” position)

[Infinitiexpert]

My question is what is PNP switch, and how can I set it on?

Park and Neutral Position switch. The switch is ON when the shifter is either in park or neutral.

[mbian]

Thanks!
I am working on to get my idle back after Throttle Body cleaning.
I tried quite a few times, Idle Air Volume Learning alway stops at 720-750 rpm, according manual, it has to be at 650+/-50 to be succesful. what did I miss?

Originally Posted by Infinitiexpert

Park and Neutral Position switch. The switch is ON when the shifter is either in park or neutral.

[Infinitiexpert]

what did I miss?

Was the engine warm up before you started the Idle Air Volume Learning? Was the A/C or radio ON?

[mbian]

yes, and no,no.
I am in Canada, we have DLS, so I set at second position to light up samll lamp. I also tried off, and first position, it didn't help.
Thanks.

Originally Posted by Infinitiexpert

Was the engine warm up before you started the Idle Air Volume Learning? Was the A/C or radio ON?

[mbian]

Well, it's a known problem for all 2002-2005 NISSAN VEHICLES. if any one got same problem, check NISSAN TSB NTB05-067 or INFINITI TSB ITB05-042
Had I read this TSB at first place, I would never clean my throttle body, hehe

[mbian]

It cost me $200 to get my idle back. ECM need to reprogram. Whenever throttle body is cleaned or replaced, IAVL cannot be complished. it's a defeact, and should be free of charge.
Shame on NISSAN/Infiniti!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!

[ByThaBay]

Originally Posted by mbian

Well, it's a known problem for all 2002-2005 NISSAN VEHICLES. if any one got same problem, check NISSAN TSB NTB05-067 or INFINITI TSB ITB05-042
Had I read this TSB at first place, I would never clean my throttle body, hehe

wow :jawdrop:

[jist26]

do you have to do a reset after cleaning the throttle body i'm a bit of a noob with some of this stuff, kindda tired of getting robbed at the stealerships.
this was an incredible video tutorial

[ByThaBay]

Originally Posted by jist26

do you have to do a reset after cleaning the throttle body i'm a bit of a noob with some of this stuff, kindda tired of getting robbed at the stealerships.
this was an incredible video tutorial

yes, the reset instructions are at the end of the video