Warm start problems
#1
07-24-2014, 02:01 PM
Warm start problems
The car starts up fine when the engine is cold, but for warm starts it'll crank then the rpm would drop very low and occasionally stall. I can prevent the engine from dying by hitting the accelerator, but I would really like to get this fixed.
Things I have tried:
New battery
New MAF
New spark plugs
Cleaned throttle body
Hard reset ECU
Any ideas of what else I can try?
Things I have tried:
New battery
New MAF
New spark plugs
Cleaned throttle body
Hard reset ECU
Any ideas of what else I can try?
#4
07-25-2014, 05:44 PM
Maybe?
"ITB11-018a
-REVISED-
2007–2008 INFINITI G35 SEDAN, 2007 G35 COUPE, 2008 EX35, 2009-2010 FX35; ENGINE HESITATION OR STOPS RUNNING AT IDLE OR VERY LOW SPEEDS
The customer reports any of the following:
• Engine hesitation at idle or very low speeds,
and/or
• Engine speed drops lower than expected when decelerating or coming to a stop,
and/or
• Engine stops running at idle or very low vehicle speeds (parking lot maneuvers), but can be restarted."
http://x.infinitihelp.com/forum/loca...4#.U9HWalYlxzF
"ITB11-018a
-REVISED-
2007–2008 INFINITI G35 SEDAN, 2007 G35 COUPE, 2008 EX35, 2009-2010 FX35; ENGINE HESITATION OR STOPS RUNNING AT IDLE OR VERY LOW SPEEDS
The customer reports any of the following:
• Engine hesitation at idle or very low speeds,
and/or
• Engine speed drops lower than expected when decelerating or coming to a stop,
and/or
• Engine stops running at idle or very low vehicle speeds (parking lot maneuvers), but can be restarted."
http://x.infinitihelp.com/forum/loca...4#.U9HWalYlxzF
#5
07-26-2014, 04:21 PM
The next closest dealership is a couple hour drive away, it looks like I'll just have to pay the fine.
#6
07-28-2014, 09:03 AM
I'm currently working through the same issue with my 2008 G35x.
I removed and cleaned throttle bodies over the weekend. Now I'm getting high idle on cold start so I'm going to reset ECU and perform relearn procedures for accelerator pedal release position, throttle valve closed position and idle air volume.
Did you try any of the relearn procedures when you reset ECU?
I removed and cleaned throttle bodies over the weekend. Now I'm getting high idle on cold start so I'm going to reset ECU and perform relearn procedures for accelerator pedal release position, throttle valve closed position and idle air volume.
Did you try any of the relearn procedures when you reset ECU?
#7
07-29-2014, 12:30 PM
I tried ECU reset and various relearn procedures but I'm not sure if they worked. Idle is still elevated, ~1,400 rpm on cold start but settles down to 600 rpm when warm. Warm start issue seems to been cured.
Can anyone tell me if cold idle speed of 1,400 rpm is OK or do I need to repeat one or more relearn procedures?
Can anyone tell me if cold idle speed of 1,400 rpm is OK or do I need to repeat one or more relearn procedures?
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#8
07-29-2014, 01:22 PM
I tried ECU reset and various relearn procedures but I'm not sure if they worked. Idle is still elevated, ~1,400 rpm on cold start but settles down to 600 rpm when warm. Warm start issue seems to been cured.
Can anyone tell me if cold idle speed of 1,400 rpm is OK or do I need to repeat one or more relearn procedures?
Can anyone tell me if cold idle speed of 1,400 rpm is OK or do I need to repeat one or more relearn procedures?
#9
07-29-2014, 01:48 PM
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