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In a 1990 Honda Civic, the Engine Control Unit (ECU) is typically located under the dashboard on the driver's side. You can find it mounted on the side of the dashboard, near the left kick panel. To access it, you may need to remove a few panels or covers. Make sure to disconnect the battery before handling the ECU for safety.
What else can I help you with?
How do I reset the ECU in my 2000 Honda Civic ex?
How i reset the computer on Honda civic ex 2.000
Honda Civic 1989 over reving?
If a Honda Civic is over revving than there may be a problem with the ECU. One of the functions of the ECU is to prevent the engine from over revving.
A complete wiring diagram for 1994 Honda Civic is?
what are the wires to power up the ecu on a 1994 Honda civic si
Will a Honda Civic 2001 engine fit in Honda Civic 1990?
No it will not.
Where is vehicle speed sensor located on 91 Honda civic '?
in the ecu
Where exactly can you find ecu main chip on Honda civic 95 coupe sohc engine d15b7 101 hp?
The main chip of a 1995 Honda Civic is found inside the ECU. The chip is clipped on, on the upper left side of the ECU.
Where is the ecu on your 99 Honda Civic?
behind the passenger side kick panel
How do i disarm a alarm for a 1990 Honda Civic?
Let me know if you have found out the answer to this question i need to disarm my 1990 Honda civic also
Where is the tcu located on a 1999 Honda civic ex?
For an OBD2-b (1999+) civic, the TCU is built inside the ECU.
What part of the numbers on a Honda Civic ecu need to be matched?
the last 4 numbers
Where is the ECU in your 1996 Honda Civic?
Passenger side bottom right next to the door
Where is the ECU located on a 1999 Honda Civic SI?
below on the right. by the passengers leg
