u got to remember that car has diferent transmission then the normal vehicle it has stell belt inside the trans.

 

Yeah, but he's got an electronic throttle. It sounds like it could be tricky to adjust. If he can see that it's not opening fully it might prove that it isn't working properly- but it might not open fully or at all with the car off anyway. Gotta love technology, right?

 

i used to work at nissan and they are by far the slowest car i have ever driven, they have 5 inch wide tires on them, how fast could it possibly be???

 

ECU Resetting Procedures

Timing is extremely critical. If it is NOT DONE within the specify time, the ECU will not reset and the Check Engine Light (CEL) will continue to remain ON.
A stop watch or an analog clock with a second’s needle will be useful.

Operations Procedures

1. Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
2. Repeat the following steps (2a and 2b) procedures quickly five times within 5 seconds.
2a. Fully depress the accelerator pedal (HARD).
2b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the CEL starts blinking.
4. Fully release the accelerator pedal (while the CEL is still blinking)
5. Wait about 10 second.
6. Fully depress the accelerator pedal and keep it for more than 10 seconds.
7. Fully release the accelerator pedal (The CEL light will continue to blink).
8. Turn ignition switch to “OFF” position and now you can start the car. The CEL light should be gone.

If the CEL light continues to remain ON, repeat the above steps. Timing is EXTREMELY critical to resetting the ECU.

----------------------------------------------------------
Accelerator Pedal Release Position Learning

Operation Procedure
1. Make sure that the accelerator pedal is fully released.
2. Turn ignition switch “ON” and wait at least 2 seconds.
3. Turn ignition switch “OFF” wait at least 10 seconds.
4. Turn ignition switch “ON” and wait at least 2 seconds.
5. Turn ignition switch “OFF” wait at least 10 seconds.


Throttle Valve Closed Position Learning

Operation Procedures
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch is “ON”.
3. Turn ignition switch is “OFF” wait at least 10 seconds.
Make sure that the throttle valve moves during above 10 seconds by confirming the operating sound.


Idle Air Volume Learning (Throttle Position Learning)
It is better to count the time accurately with a clock.

Operation Procedures
1. Perform “Accelerator Pedal Released Position Learning”.
2. Perform “Throttle Valve Closed Position Learning”.
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch “OFF” and wait at least 10 seconds.
5. Conform that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
6. Repeat the following (steps 7a, 7b) procedures quickly five times within 5 seconds.
7a. Fully depress the accelerator pedal (HARD)
7b. Fully release the accelerator pedal.
8. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the Check Engine Light (CEL) stops blinking and turned ON.
9. Fully release the accelerator pedal within 3 seconds after the CEL is ON.
10. Start engine and let it idle.
11. Wait 20 seconds.
12. Rev up the engine two or three times and make sure the idle speed and ignition timing are within the specifications.





Martin

 

Oh wow man thanks! Too late to mess with this tonight but I'll see if I cant fix it for her tomorrow!

PM me what you drink, cause if this works I'll snag you a bottle!

Just out of curiousity, is this procedure standard accross drive-by-wire equipped NIssans? (I.e will this allow me to recalibrate my 350z?)

 

correct.. this is how I zero out 350z's before I dyno them.. This is std procedure for nissan drive by wire BS.

Martin

 

yeah the ecu limits throttle opening like less than 75% at "WOT" sometimes, to help with the powerband and gas efficiency. stock dynos plotted over throttle positions show you how restrictive they make them.

wow martin thats sweet. now if only someone can come out with a short shifter for the versa. my friend has one that its like rowing a boat.

 

+1 for martin the master at tuning

 

yea but if thats the case the service engine light will come on.

 

Cvt + D.b.w. = Fail.