Car won't go above 40mph?

zryder · 01-09-2016, 11:48 AM

Hola amigo's - I noticed today that my car was running a bit strange, usually when I touch down the pedal im easily going 35-40mph, however today I had to literally floor it to speed up to 40mph, it wouldn't go past the 40-50mph mark. Any idea on what this could be?

My car has 30k miles and during my last oil change the dealership recommend
Power steering fluid flush
Brake fluid flush
Fuel induction flush

Not sure if any of these are contributors to why my car is acting so weird?

Thanks in advance

JC-Nismo · 01-09-2016, 12:01 PM

Could be an ECU issue, try disconnecting the negative connector on your battery to reset the adaptives if possible and see if that could be a quick fix.

zryder · 01-09-2016, 12:05 PM

Quote:

Originally Posted by JC-Nismo

Could be an ECU issue, try disconnecting the negative connector on your battery to reset the adaptives if possible and see if that could be a quick fix.

Thanks for your response, This was the first thing I tried, didn't help

SouthArk370Z · 01-09-2016, 05:37 PM

Get an OBD/CAN scanner and see if there are any DTCs thrown. It sounds like you are in limp mode - if so, the ECM should tell you why.

DOOMMONKEY777 · 01-09-2016, 08:04 PM

Can u rev pass 3k while on load, is it manual or auto?

01-09-2016, 11:48 AM	#1 (permalink)
zryder Base Member Join Date: Oct 2012 Location: Cali Posts: 41 Drives: 370Z Rep Power: 12	Car won't go above 40mph? Hola amigo's - I noticed today that my car was running a bit strange, usually when I touch down the pedal im easily going 35-40mph, however today I had to literally floor it to speed up to 40mph, it wouldn't go past the 40-50mph mark. Any idea on what this could be? My car has 30k miles and during my last oil change the dealership recommend Power steering fluid flush Brake fluid flush Fuel induction flush Not sure if any of these are contributors to why my car is acting so weird? Thanks in advance

01-09-2016, 05:37 PM	#4 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	Get an OBD/CAN scanner and see if there are any DTCs thrown. It sounds like you are in limp mode - if so, the ECM should tell you why. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

01-09-2016, 08:04 PM	#5 (permalink)
DOOMMONKEY777 A True Z Fanatic Join Date: Sep 2010 Location: Crooklyn Posts: 1,008 Drives: 370Z 6psd-sport-pkg Rep Power: 20	Can u rev pass 3k while on load, is it manual or auto? __________________ Kids don't do Drugs, Drugs are bad, so let the professional druggies do Drugs for you. 537whp/496lb/tq@8-9PSI 93 octane

01-09-2016, 12:01 PM	#2 (permalink)
JC-Nismo A True Z Fanatic Join Date: Sep 2014 Location: Atlanta Posts: 1,244 Drives: 2011 Nismo 370z Rep Power: 12	Could be an ECU issue, try disconnecting the negative connector on your battery to reset the adaptives if possible and see if that could be a quick fix.