ECU Resetting Procedures
This link was provided earlier for a Basic ECU Reset, but in case it's ever broken I thought a hard copy on site might be appropriate. Perhaps even a spot on the FAQ board?
<TECHNOSQUARE - PRODUCTS - TECHNOSQUARE - 350Z ECU Reset>
NOTE: Please read all instructions and be familiar with them before any attempts. Timing is extremely critical. If it is NOT DONE within the specified time, the ECU will not reset and the Check Engine Light (CEL) will continue to remain ON. There is NO margin of error. A stop watch or an analog clock with a second’s hand is mandatory.
<u>
Basic ECU Reset</u>
Operations Procedures:
1. Confirm that
accelerator pedal is fully released, turn
ignition switch “ON” (NOT start) 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 seconds.
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. Remember, timing is EXTREMELY critical to resetting the ECU. You may even need someone's help to do this correctly.
Note: The following reset procedures are directly from the 2004 G35 Sedan Service Manual.
