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Old 01-06-2010, 09:18 PM   #1
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Default where is the 1994 civic diagnostic port.

i dont know where it is at

does anyone know where it is at?
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Old 01-06-2010, 09:20 PM   #2
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Default Re: where is the 1994 civic diagnostic port.

Under the dash, on the passenger side of the car. If it hasn't been tampered with it will have a green sleeve over it. Otherwise, it is a brown two wire plug.
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Old 01-06-2010, 09:32 PM   #3
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Default Re: where is the 1994 civic diagnostic port.

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Originally Posted by vtechjunkie View Post
Under the dash, on the passenger side of the car. If it hasn't been tampered with it will have a green sleeve over it. Otherwise, it is a brown two wire plug.
and im new to this honda stuff. so is the port a obd2 or obd2?
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Old 01-06-2010, 09:35 PM   #4
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Default Re: where is the 1994 civic diagnostic port.

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Originally Posted by civic90242 View Post
and im new to this honda stuff. so is the port a obd2 or obd2?
Huh? obd2 or obd2 you ask?

IIRC, the 94 Civic should be an obd1.
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Old 01-06-2010, 09:38 PM   #5
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Default Re: where is the 1994 civic diagnostic port.

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Huh? obd2 or obd2 you ask?

IIRC, the 94 Civic should be an obd1.
my mistake, my bad

ok thank you i thought it was a obd2
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Old 01-06-2010, 09:41 PM   #6
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Default Re: where is the 1994 civic diagnostic port.

Just connect the two ports with the key in "on" position, and the check engine light will flash. Long flash is 10 and short is 1.
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Old 01-06-2010, 09:45 PM   #7
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Default Re: where is the 1994 civic diagnostic port.

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Just connect the two ports with the key in "on" position, and the check engine light will flash. Long flash is 10 and short is 1.
ok thanks bro
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Old 01-06-2010, 09:50 PM   #8
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Default Re: where is the 1994 civic diagnostic port.

Okay-since no one brought this up,
Pre-1996= OBD 1 Datalink under pass dash-
1996-Present= OBD 2 16-pin Dataport under driver-side dash under steering wheel
OBD= On Board Diagnostic
1= 1 O2 sensor per engine bank, used for ECU fuel trim/compensation
2= 2 O2 sensor per engine bank, 1 upstream before catalytic converter (cat), 1 downstream after catalytic converter (cat) downstream used for ECU monitoring of catalytic converter efficiency.

Hope this helps!
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Old 01-06-2010, 09:52 PM   #9
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Default Re: where is the 1994 civic diagnostic port.

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Okay-since no one brought this up,
Pre-1996= OBD 1 Datalink under pass dash-
1996-Present= OBD 2 16-pin Dataport under driver-side dash under steering wheel
OBD= On Board Diagnostic
1= 1 O2 sensor per engine bank, used for ECU fuel trim/compensation
2= 2 O2 sensor per engine bank, 1 upstream before catalytic converter (cat), 1 downstream after catalytic converter (cat) downstream used for ECU monitoring of catalytic converter efficiency.

Hope this helps!
really good info, thanks
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Old 01-06-2010, 09:54 PM   #10
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Default Re: where is the 1994 civic diagnostic port.

Oh, and for clarification, to decipher the code for the check engine light, you can plug a paper clip into the datalink connector on the pass side of the car, and count the flashes with the key on, engine off. the long flash indicates the first number, and the short flash indicates the second number. Ex., two long flashes, two short flashes equals code 22. Good luck!!!
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