2007 G35 hesitation at 1K RPM - G35Driver - Infiniti G35 & G37 Forum Discussion

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2007 G35 hesitation at 1K RPM

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Old 11-07-2018, 01:57 PM
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2007 G35 hesitation at 1K RPM

so this started about a month ago, IE my 2007 G35 with 138K miles hesitates when taking off only from a complete stop or in reverse but only when warm. I had the throttle bodies, and Mass air flow sensors cleaned, the spark plugs replaced and other ideas? Also when in park or neutral and you rev the engine it does not occur only when in gear and warm IE runs great when cold.
 
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Old 11-07-2018, 07:30 PM
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^^
Air Filter?
Vacuum leak?
Any codes?

Telcoman
 
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Old 11-07-2018, 08:43 PM
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Who cleaned the throttle bodies and MAF ? You can clean the MAF by just spraying it with the proper cleaner but the throttle bodies usually will require manual cleaning.

Have you ever tried the various "resets" (ECU reset, idle air volume, etc) ?
 
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Old 11-08-2018, 10:10 AM
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will try the air filters today and no codes are being thrown
 
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Old 11-08-2018, 10:12 AM
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my buddy and I cleaned them and made sure not to move the butterfly valves, did the resets (PIA). What I don't get is why does it only do this when warm, when cold it runs great, and only in drive or reverse not if I rev from low RPM in park or neutral?
 
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Old 11-08-2018, 02:58 PM
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Was the car fully warmed up when you did the idle air learning ? I actually have the Nissan Data Scan app and an ODBII adapter but that reset failed every time until I made sure every condition was met, including setting the parking brake. I was making sure the coolant temp was in spec, battery voltage in spec, radio/lights/climate control system etc etc were all off and until I set the parking brake, it failed. Set the parking brake, it worked instantly.
 
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