G37 Surges/Fast Idle
#18
Registered User
Join Date: Aug 2007
Location: Rancho Santa Margarita, CA
Posts: 121
Likes: 0
Received 0 Likes
on
0 Posts
That's exactly what I am going to do at my first scheduled service. It happens about 2-3 times a day on my car but not each day, only intermittently after aggressive driving. I imagine that the brake wear is greatly increased by this happening.
#19
Registered User
Join Date: Oct 2007
Location: Los Angeles , CA
Posts: 24
Likes: 0
Received 0 Likes
on
0 Posts
It happened 5 times since I got G. Mine is almost 4000miles. I went to dealer 4days ago and explain this problem but they said never heard about it. So I gave them TSB number. after 3 hours... they told me reprogrammed ECU for power train.
#20
Registered User
Join Date: Dec 2007
Location: Orange County, CA
Posts: 77
Likes: 0
Received 0 Likes
on
0 Posts
Happens to me as well and I live in SoCal where cold is anything below 70. The car seems to want to keep going just before you come to a full stop so I'd guess it's an internal downshifting problem. If I blow a red light and a cop pulls me over I'll just tell him the car didn't want to stop.
#21
Did the problem go away after they reset the ECU
#24
Registered User
Join Date: Oct 2007
Location: Los Angeles , CA
Posts: 24
Likes: 0
Received 0 Likes
on
0 Posts
#25
#26
Registered User
Join Date: Oct 2007
Location: Los Angeles , CA
Posts: 24
Likes: 0
Received 0 Likes
on
0 Posts
#27
Registered User
Any news/update on the surging of the G, stopping after resetting the ECU, or taking it into the dealer?????
I am taking my G in for its first service on Saturday....
I am going to tell them about it, and see what they say.
I am taking my G in for its first service on Saturday....
I am going to tell them about it, and see what they say.
#29
Registered User
Join Date: Aug 2007
Location: Rancho Santa Margarita, CA
Posts: 121
Likes: 0
Received 0 Likes
on
0 Posts
I also had the intermittent idle surge problem when braking. I took a copy of the TSB to the dealer for the 3750 mile service. They reprogrammed the ECM, as per the TSB and no more problem. The TSB calls for a reprogramming of the ECM with updated software, not just a reset, as some posters have said. The overall shifting of the tranny is MUCH smoother and seems to hold higher revs longer between shifts. Very happy now!