Hey team,
I just recently purchased a second hand 2004 350z being my dream car.
the car works perfectly until i found on day the car while running looses throttle response while driving. but i am not sure if i can say it is throttle response because the RPM fall suddenly and acceleration works but does not move the car or the RPM does not go more that 2 and engine still ON.
WHAT CAN BE THE ISSUES?

also it workS fine if i restart the engine. AND AGAIN HAPPENS SUDDENLY.

 

Welcome- are you getting a CEL when the throttle response fails? Also, have you pulled any codes from the Z's internal diagnostic system?

 

Since this is an american imported car i am using in middle eat. Nissan service cneter could not diagnose the vehicle. said the programming software doesnt support.

I am compltely confused where to show and what to do. if i give to a local work shop they will defntly make me change part by part until they actually find the issue. i have seen same probelms faced by many in youtube but could not get the solution.

to be precise the vehicle while running suddenly the Rpm fall and no movement other than the normal released clutch movement. press the accelerator and cars moves like a snail. acceleration sound come but RPM stays below 2. turn it off and on. back to normal.

 

Moved your thread to a more appropriate forum. This sounds like you're hitting limp mode while driving. Limp mode holds revs to under 1000 RPM and can be due to the car detecting a serious problem. You need to learn how to plug a ECM scanner into the OBD2 port to access codes.