slight hesitation on slow take off
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G35s
I went ahead and ordered the whole passenger tube and part from Infiniti, so its on its way, hoping this solves all these weird problems after new ac condenser and serpentine belt and receiver dryer were all replaced. My theory is when they took off the intake hoses that part was brittle already and created a whole, sounds like a bad part to begin with since others have same hole. Will let you guys know if this fixes the hesitation etc.
Check if your ECM has a firmware update available and if it does like mine did, then the hesitation goes away, assuming you have no other fault codes present.
Here, read this thread about ECM update at home, I start in post #4.
Guide for Reprogramming Updates to your ECU
Here, read this thread about ECM update at home, I start in post #4.
Guide for Reprogramming Updates to your ECU
Last edited by MaLPoPieS; May 20, 2025 at 12:50 PM.
Registered User
Joined: Jun 2023
Posts: 8
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G35s
Check if your ECm has a firmware update available and if it does like mine did, then the hesitation goes away, assuming you have no other fault codes present.
Here, read this thread about ECM update at home, I start in post #4.
Guide for Reprogramming Updates to your ECU
Here, read this thread about ECM update at home, I start in post #4.
Guide for Reprogramming Updates to your ECU
Also, after reading your threads seems like your problems came back as well after your update.
I'm glad you read it at least, but heres why it came back.
Before the ECM update, i've replaced all 4 CAM sensors with RockAuto Hitachi cam sensors, thinking it would resolve my part throttle hesitation and those did this: Long and rough warm or hot restarts
So after putting back my original Denso cam sensors, ALL issues went away. It's been over a year and i haven't had a singel issue with my car drivetrain wise. So if you are on the latest ECM firmware software, then i would attack the cam sensors and get only OEM Denso ones from the dealer or you'll end up swapping parts and wasting time like i did.
Before the ECM update, i've replaced all 4 CAM sensors with RockAuto Hitachi cam sensors, thinking it would resolve my part throttle hesitation and those did this: Long and rough warm or hot restarts
So after putting back my original Denso cam sensors, ALL issues went away. It's been over a year and i haven't had a singel issue with my car drivetrain wise. So if you are on the latest ECM firmware software, then i would attack the cam sensors and get only OEM Denso ones from the dealer or you'll end up swapping parts and wasting time like i did.
Registered User
Joined: Jun 2023
Posts: 8
Likes: 0
G35s
I'm glad you read it at least, but heres why it came back.
Before the ECM update, i've replaced all 4 CAM sensors with RockAuto Hitachi cam sensors, thinking it would resolve my part throttle hesitation and those did this: Long and rough warm or hot restarts
So after putting back my original Denso cam sensors, ALL issues went away. It's been over a year and i haven't had a singel issue with my car drivetrain wise. So if you are on the latest ECM firmware software, then i would attack the cam sensors and get only OEM Denso ones from the dealer or you'll end up swapping parts and wasting time like i did.
Before the ECM update, i've replaced all 4 CAM sensors with RockAuto Hitachi cam sensors, thinking it would resolve my part throttle hesitation and those did this: Long and rough warm or hot restarts
So after putting back my original Denso cam sensors, ALL issues went away. It's been over a year and i haven't had a singel issue with my car drivetrain wise. So if you are on the latest ECM firmware software, then i would attack the cam sensors and get only OEM Denso ones from the dealer or you'll end up swapping parts and wasting time like i did.
Thank you for the info. I really appreciate that
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NewGuyG35
G35 Sedan V36 2007- 08
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Aug 18, 2009 11:00 PM