Check Engine Code P1166/1167 - Honda-Tech - Honda Forum Discussion


Check Engine Code P1166/1167

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Old 08-21-2008, 07:22 AM   #1
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Default Need Help Please:Check Engine / Code P1166/1167

01 Honda Accord 2 dr. Coupe 4 cy. ULEV
My Check Engine light came on and a local mechanic told and showed me these 2 codes.

Could anyone please tell me what these codes mean exactly.
What needs to be checked and or replaced

P1166 Air/Fuel Ratio (A/F) Sensor 1 (Sensor 1) Heater sytem Electrical Problem
P1167 Air/Fuel Ratio (A/F) Sensor 1 (Sensor 1) Heater sytem Malfuction.


Modified by Teman62 at 10:44 AM 8/21/2008
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Old 08-21-2008, 03:05 PM   #2
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Default Re: Need Help Please:Check Engine / Code P1166/1167 (Teman62)

P1166 Heated Oxygen Sensor 1 (Primary HO2S) Heater Circuit Malfunction
P1167 AFR Sensor 1 Heater System Malfunction.

Test / Replace your primary O2 sensor
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Old 08-21-2008, 03:17 PM   #3
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Default Re: Need Help Please:Check Engine / Code P1166/1167 (Teman62)

there is an electric heater in the O2 sensor to make the sensor read more accurately faster after engine start up.
Both those codes are pointing to a problem of the heater circuit; possibly no voltage to the heater or the heater is bad in the sensor.
At the sensor plug the red[pin2] and blue [pin1] wires go to the heater circuit, on the harness side there should be 12V within 80 seconds of engine start.
The corresponding terminals to the heater circuit should show about 10-40 ohms resistance across the heater.
Check the ECM/Cruise Control 15 amp fuse in the drivers side dash fuse box;
Also check the passenger side dash fuse box 20 amp LAF Heater fuse
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Old 08-21-2008, 05:29 PM   #4
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Default Re: Need Help Please:Check Engine / Code P1166/1167 (Mr Yamada)

Thanks MR Yamada
Your info is very helpful. I will check this in A.M. ...just got home from work 9:30pm. If it is one of the fuses... just replace and reset code?
I'm guessing if part of 02 sensor (heater) I have to replace the sensor?
Last question which OEM aftermarket 02 sensor is good for my car.
Thank You


Modified by Teman62 at 6:34 PM 8/21/2008
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Old 08-21-2008, 05:31 PM   #5
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Default Re: Need Help Please:Check Engine / Code P1166/1167 (GhostAccord)

Thanks Ghost
I figured it maybe something with 02 sensor (front) going to check in a.m.
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Old 08-22-2008, 04:40 PM   #6
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Default Re: Need Help Please:Check Engine / Code P1166/1167 (Teman62)

Ok, found out today that it is the front 02 sensor that needs to be replaced.
Could anyone tell me where I can get one for under $200.00 . This is the sensor located on the exhaust manifold (ULEV 01 ACCORD EX 4cyl.)
Thanks


Modified by Teman62 at 6:27 PM 8/22/2008
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Old 08-22-2008, 05:01 PM   #7
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Sent ya a PM. Hope it helps.
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Old 08-22-2008, 05:32 PM   #8
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Default Re: (oem_cg3)

oe-cg3
How do I retrieve your pm.
I can't find it!
Thanks
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Old 08-23-2008, 12:30 AM   #9
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http://cgi.ebay.com/ebaymotors...photo
Here... hope this helps
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Old 08-23-2008, 11:44 AM   #10
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Default Re: (oem_cg3)

Thanks oem
I ended up ordering from J.C. Whitney (bosch o2 sensor) for $148.00 with
free shipping.
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Old 08-25-2008, 11:59 AM   #11
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Why not OEM Honda?
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Old 08-26-2008, 07:57 AM   #12
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Default Re: (oem_cg3)

For some some strange reason my car needs the sensor for an 02 model.
I ended up having to get it local as the Info given by J.C. Whitney was
incorrect (cancelled order). They told me they could ship overnight, when in fact that was wrong.
This part was coming directly from factory and for some unexplained reason
they can't ship overnight from there.
Anyway, car is back to normal and thanks for all your help.
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Old 03-26-2017, 01:09 PM   #13
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Default Re: Check Engine Code P1166/1167

I'm new to this site but what I think many have forgot to mention is , make sure if you had any maintenance / repairs done make sure all sensor plugs and wiring has been plugged back in and fastened correctly. This will throw a code of P1166 and P1167
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Old 03-27-2017, 04:43 PM   #14
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Default Re: Check Engine Code P1166/1167

Yes sir... test and check connections is always the first step in diagnostic troubleshooting. You had to reach way back for this one........this thread is almost 10 years old.


Why are we getting all these 10 year thread bumps by 1 post members? Bots?
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Old 03-28-2017, 05:19 AM   #15
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Default Re: Check Engine Code P1166/1167

Quote:
Originally Posted by GhostAccord View Post
Why are we getting all these 10 year thread bumps by 1 post members? Bots?
Because when you do a Google search for a topic it will bring up threads on this and other sites that may be 15 years old. So people post without looking at the date. They just assume the thread is recent.
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Old 03-28-2017, 03:19 PM   #16
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Default Re: Check Engine Code P1166/1167

Ah yes.......Google it!
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Old 04-05-2017, 08:08 PM   #17
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Default Re: Need Help Please:Check Engine / Code P1166/1167 (Teman62)

Quote:
Originally Posted by Mr Yamada View Post
there is an electric heater in the O2 sensor to make the sensor read more accurately faster after engine start up.
Both those codes are pointing to a problem of the heater circuit; possibly no voltage to the heater or the heater is bad in the sensor.
At the sensor plug the red[pin2] and blue [pin1] wires go to the heater circuit, on the harness side there should be 12V within 80 seconds of engine start.
The corresponding terminals to the heater circuit should show about 10-40 ohms resistance across the heater.
Check the ECM/Cruise Control 15 amp fuse in the drivers side dash fuse box;
Also check the passenger side dash fuse box 20 amp LAF Heater fuse
thank you , I replaced the upstream 02 A/F sensor but could not clear CEL , had blown LAF Heater Fuse under the dash board code has cleared and is good to go.
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Old 05-04-2017, 06:58 AM   #18
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Default Re: Check Engine Code P1166/1167

My O2 sensor (upstream) has the part number 192400-1020 engraved on it. What other part numbers is the exact equivalent to this part number? I've seen part numbers that start with 234-xxxx but i'm really confused on what to buy for my 02 accord ex with an F23A type engine (JDM). Thank you for any help you guys can share.
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Old 05-04-2017, 03:56 PM   #19
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Default Re: Check Engine Code P1166/1167

Honda part number - 36531-PAA-305
NTK part number - 24655
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1167, 2000, 2001, 2003, accord, acura, code, codes, engine, fuse, heater, honda, laf, obd, p1166, p1167, rsx

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