Car sounds wweful when starting up cold

N0SL3N

To fix the throttle response you either have to get a tune or one of those pedal boxes that modifies the throttle output signal. The cheapest and easiest fix to throttle lag is to just push the pedal more, just takes some time to get used to it.

As for the cold start up sound, I think it sounds great. The engine holds different rpms based on coolant temp (which can be adjusted with uprev) but it could also have something to do with vvel adjusting.

what exhaust do you have?

__________________
| Akuma | Motordyne | Z1 | NST | CNT | Stillen | Avant Garde | RJM | Performix | Tint | LED | GTR | Nissan |

JC671

The reason why the throttle response is not as quick as other vehicles is the fact that our throttle is controlled by the ECM and not a wire like most vehicles.

A tune by uprev to fix the throttle maps easily fix that. It did for me. Those pedal boxes aka sprint boosters are junk IMO. Why risk using those boxes which manipulate your ECM and for those who are tune have a chance of something going wrong since you have a flash tune and another device giving your ECM two different signals and targets.

Get it all fixed with a tune. In the end, unless going with a full stand alone ECU and drive by throttle wire, adjusting the throttle maps is all you can do.

__________________

A special "Thank You" to the Fast Intentions Crew!
"Fueled By Passion"

DIGItonium

The 350Z is also throttle by wire.

__________________