resetting the ecu

[HR Autoparts]

im running a ka24de, how do i reset the ecu, my car starts and runs, but theres minimal power and its running extremely rich, any help would be much appreciated, thanks

[240mph]

take off (+) & (-) cables for awhile.(-) First.
I don't think resetting the ecu will help your
problem.The ecu has a self learning mode
and if it didn't fix the a/f ratio by now you
got another problem.Try to check if you have any codes
being throwed out. Try checking your timing also.

[Indolent]

another way is from taking out your ecu and looking on the side for the self diagnostic screw...it's on orion s14's site..uhhhh www.ka24development.com under..ecu reading/resetting i believe

[Pacman]

If you take off the positive and negative cables, you must wait 24 hours to reset itself.

[chlatboy]

If you take off the positive and negative cables, you must wait 24 hours to reset itself.

No, you do not have to wait 24 hours. Not even an hour. And Please search. If you did, you would find the answer long ago.

[holisticbeatz]

This info came from http://www.nicoclub.com. I hate NICO, but they own the domain 240SX.org. The FAQs on 240SX.org is pretty useful, but they have transferred all the data onto the nicoclub.com server. So for your viewing pleasure, how to reset the ECU:

"Find the computer(Behind the plastic piece by the passenger foot
Pull it out
Turn your key to the on position
You will see a flathead screw looking bolt on 1 side of the computer. Turn this fully clockwise
Wait at least 2 seconds
Turn it back to fully counterclockwise
This will then show the trouble code - (The check engine light will blink to show this, for instance, blink..blink..blink......blink..blink, will be 32)
After you read the code, you can start the engine
Turn the bolt back to the clockwise position for at least 2 seconds(While running)
Turn it back to the counterclockwise position
Now shut the car and then start it again, this should of removed the code."

http://forums.nicoclub.com/zerothread?id=26523

11 Crank Angle Sensor

12 Mass Air Flow Sensor

13 ECT Sensor

14 Vehicle Speed Sensor

16 TCS Signal

21 Ignition Signal Circuit

25 Idle Air Control Valve

22 Fuel Pump Control

31 ECM

32 EGR Function

33 Heated Oxygen Sensor

34 Knock Sensor

35 EGR Temperature Sensor (RH)

41 Intake Air Temperature Sensor

42 Fuel Pump Sensor

43 Throttle Position Sensor

45 Injector Leak

46 Secondary Throttle Sensor

51 Injector Analysis

53 Exhaust Gas Sensor (LH)

54 Signal Circuit From A/T Control Unit To ECM

55 System OK (1990-1995 Q45 only)

65-71 Single Cylinder Or Multiple Cylinder Misfire

72 Three Way catalyst Function

76 Fuel Injection System Function

77 Rear Heated Oxygen Sensor

82 Crankshaft Position Sensor

84 A/T Diagnosis Communication Line

91 Front Heated Oxygen Sensor Heater

103 Park/Neutral Position Switch

105 EGR & Canister Control Solenoid