1989 civic si cel code 6 all stock

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Old Nov 25, 2018 | 06:06 PM
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Default 1989 civic si cel code 6 all stock

1989 honda civic si cel code 6 everything is stock no swap the ecm blinks 6 times
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Old Nov 25, 2018 | 07:51 PM
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Default Re: 1989 civic si cel code 6 all stock

https://honda-tech.com/forums/honda-...-need-1710584/
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Old Nov 26, 2018 | 07:15 PM
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Default Re: 1989 civic si cel code 6 all stock

Originally Posted by efdave
1989 honda civic si cel code 6 everything is stock no swap the ecm blinks 6 times
Reset the ECU to clear the code.

Does it return?
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Old Nov 26, 2018 | 08:17 PM
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Default Re: 1989 civic si cel code 6 all stock

Yes, I seen that the coolant sensor wire was very brittle so I got another connector from the junk yard and a new coolant temp sensor from work and installed both today after installing both I pulled both negative and positive battery cables and held them together for a few minutes to reset the ecm after hooking everything back together and firing it up the cel light instantly came one again I noticed also this morning it took a few cranks for it to turn over , more than normal and the idle was a bit rough but seem to run good after a few minutes after fire up...and my problem didn’t start till yesterday evening

Last edited by efdave; Nov 26, 2018 at 08:20 PM. Reason: Adding
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Old Nov 26, 2018 | 08:22 PM
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Default Re: 1989 civic si cel code 6 all stock

If there is a correct way to clear the ecm please inform
thanks
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Old Nov 26, 2018 | 08:26 PM
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Default Re: 1989 civic si cel code 6 all stock

Originally Posted by efdave
If there is a correct way to clear the ecm please inform
thanks
Remove hood Hazard fuse for 5 minutes.

If code 6 returns, then Ohm test the ECT sensor.
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Old Nov 26, 2018 | 08:50 PM
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Default Re: 1989 civic si cel code 6 all stock

Ok I have it out now.. was gonna leave the battery connections and fuse out over night
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Old Nov 26, 2018 | 09:11 PM
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Default Re: 1989 civic si cel code 6 all stock

I’ll see what happens in the am and give an update also
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Old Nov 27, 2018 | 05:54 AM
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Default Re: 1989 civic si cel code 6 all stock

the coolant temp sensor that gives you a code 6 is a 2-wire sensor on the end of the head, below the distributor, with RED with WHITE stripe and GREEN with WHITE stripe wires -
sounds like you may have been confusing the temp gauge sending unit, which has a 1-wire connector (YELLOW with GREEN stripe), with the TW sensor for the ECU

Last edited by jlicrx; Nov 27, 2018 at 08:12 AM.
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Old Nov 27, 2018 | 06:04 AM
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Default Re: 1989 civic si cel code 6 all stock

Originally Posted by jlicrx
the coolant temp sensor that gives you a code 6 is a 2-wire sensor on the end of the head, below the distributor, with RED with WHITE stripe and GREEN with WHITE stripe wires -
Just adding to this^ information -- The Red/Wht wire should read ~5V and the Grn/Wht wire should read continuity to body ground using a multimeter.
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Old Nov 27, 2018 | 07:54 AM
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Default Re: 1989 civic si cel code 6 all stock

Update:
thanks for all the help guys I really appreciate the quick feedback from everyone I ended up tracking the wires back up the harness and found a break in the wire and butt-connected it before work this morning and she fired right up with no cel light 👍🏻
A temp fixk until t can do it correctly this weekend but for now she is back on the road
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Old Nov 27, 2018 | 10:17 AM
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Default Re: 1989 civic si cel code 6 all stock

Update:
found the problem, this morning I decided to follow the ect wire up the harness a bit and found out it was a broken wire...striped it and made a connection and connected the wire back to ect sensor and and the cel light went away and it started with no issues
thanks for all the help fellas I do appreciate it
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