140 mm per hour issue

marcvtec · 11-19-2011, 07:01 PM

Anyone experience a lunging effect at 3000 rpm in the highway. At 140 km

It's like even though I keep the throttle steady the car moves back and forth , it's weird and it stopped for a while and now its back again, I do not know what to make of it

OpenFlash · 11-19-2011, 07:06 PM

Only thing that can make it car stutter like that, during cruise, is lack of fuel. In this case, either low pressure or high pressure fuel pump. That would be my guess anyway. Next step would be to establish that it happens in valet mode (it should). At which point you remove the tune and take it to the dealership.

Mike@N54Tuning.com · 11-19-2011, 07:07 PM

Quote:

Originally Posted by marcvtec

Anyone experience a lunging effect at 3000 rpm in the highway. At 140 km

It's like even though I keep the throttle steady the car moves back and forth , it's weird and it stopped for a while and now its back again, I do not know what to make of it

Are you getting any codes?

Mike

marcvtec · 11-20-2011, 08:31 AM

Gotta check the log today

11-19-2011, 07:01 PM	#1
marcvtec Banned 411 Rep 2,703 Posts Drives: M5 Join Date: Oct 2006 Location: toronto iTrader: (0)	140 mm per hour issue Anyone experience a lunging effect at 3000 rpm in the highway. At 140 km It's like even though I keep the throttle steady the car moves back and forth , it's weird and it stopped for a while and now its back again, I do not know what to make of it
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11-19-2011, 07:06 PM	#2
OpenFlash 1806 Rep 17,960 Posts Drives: A Lot Join Date: Sep 2006 Location: SF Bay, CA iTrader: (0) Garage List 2018 Ducati Panigal ... [0.00] 2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00]	Only thing that can make it car stutter like that, during cruise, is lack of fuel. In this case, either low pressure or high pressure fuel pump. That would be my guess anyway. Next step would be to establish that it happens in valet mode (it should). At which point you remove the tune and take it to the dealership.
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11-20-2011, 08:31 AM	#4
marcvtec Banned 411 Rep 2,703 Posts Drives: M5 Join Date: Oct 2006 Location: toronto iTrader: (0)	Gotta check the log today
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