Code P1167

Hi,

The code is related to the heater on the air/fuel sensor. When you say you replaced the one on the block, are you referring to the one on the exhaust manifold?

If so, check to make sure the wiring to it isn't damaged. Also, confirm the pins in the plug are not pushed, corroded, or damaged in any way.

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I did a little research and found the following information (TSB) related to this issue. Take a look through it and let me know if it helps. The attached pics correlate with the directions.

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MIL reported on with code P1167
Jeff Campbell-
11/26/2014 | 13:05:55

ALLDATA Diagnostic Bulletin

RELATED VEHICLES: 1998-2002 Accord 2.3L SOHC

SUMMARY: P1167-A/F Sensor (Sensor 1) Heater System Malfunction; A heater for the sensor element is embedded in the air/fuel ratio (A/F) sensor (sensor 1) and is controlled by the engine control module (ECM)/powertrain control module (PCM). It is activated and heats the sensor to stabilize and speed the detection of oxygen content when the exhaust gas temperature is cold. The sensor cell resistance decreases as its temperature increases. If the sensor cell resistance is not less than a set value after the lapse of a specified time period since the heater is turned on, a malfunction is detected and a DTC is stored and the MIL is illuminated.

See pic 1

RELATED TSB:

HONDA Service News: Alternator Short Can Cause DTCs and Blown No. 6 Fuse

AFFECTED VEHICLES: 1998†2002 Accord L4s

A short to ground in the BLK/YEL alternator wire could cause the ECM/PCM to set certain DTCs and intermittently blow the No. 6 (15A) fuse in the driver’s under-dash fuse/relay box.

To fix this problem, you need to repair the damaged wire insulation and replace the blown No. 6 fuse.

Which DTCs set depends on whether the vehicle is a ULEV or not. Here’s the breakdown:

ULEV Models:
DTC P0141 [secondary heated oxygen sensor (secondary HO2S) (sensor 2) heater circuit malfunction]
DTC P1166 (air fuel ratio (A/F) sensor (sensor 1) heater circuit malfunction]
DTC P1167 [air fuel ratio (A/F) sensor (sensor 1) heater system malfunction]
DTC P1298 [electrical load detector (ELD) circuit high voltage]
A/T models only: A/T DTC P1768 (problem in the A/T clutch pressure control solenoid valve A circuit)

Non-ULEV Models:
DTC P0135 [primary heated oxygen sensor (primary HO2S) (sensor 1) heater circuit malfunction]
DTC P0141 [secondary heated oxygen sensor (secondary HO2S) (sensor 2) heater circuit malfunction]
DTC P1298 [electrical load detector (ELD) circuit high voltage]
A/T models only: A/T DTC P0753 (problem in shift solenoid valve A circuit)
A/T models only: A/T DTC P1753 (problem in torque converter clutch solenoid valve circuit)

PROBABLE CAUSES:

Air Fuel Ratio Sensor
Air Fuel Ratio Sensor Heater Circuit
Air Fuel Ratio Sensor Relay
No. 6 A/F HEATER (20 A ) Fuse
Wiring or Connectors
ECM/PCM
RELATED COMMUNITY CASES:

P1167, MIL ON, Ultra Low Emission Vehicle (ULEV)
Check Engine Light (MIL) ON
DIAGNOSIS:

HINT: If the A/F ratio sensor needs replacement, technicians are reporting that using an OEM unit ensures no further trouble, especially in the ULEV emissions package vehicles.

HINT: If DTC P1162 is stored at the same time as DTC P1167, troubleshoot DTC P1162 first, then troubleshoot DTC P1167 if necessary.

1. Reset the ECM/PCM with a capable scan tool or turn the ignition switch OFF, and remove the No.13 CLOCK BACKUP fuse (7.5 A ) (A) from the passenger's under-dash fuse/relay box (B) for 10 seconds.

2. Start the engine. Wait for at least 80 seconds.

If P1167 does not reappear, intermittent issue, check wiring and connectors
If P1167 is indicated, proceed to next step.
3. Ignition "OFF", disconnect the A/F Sensor 4P connector, and ECM/PCM connector C (31P).

4. Connect ECM/PCM connector terminals C14 and C15 to body ground with a jumper wire.

See pic 2

5. Check for continuity between A/F Sensor (Sensor 1) 4P connector terminal No.1, No.2, and body ground individually.

See pic 3

If you have continuity, replace the A/F ratio sensor
If you do not have continuity, check the wiring and connectors for damage, an open or short and remedy as necessary.

See remaining pics for schematics.

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Let me know if this helps or if you have other questions.

Take care,
Joe

Hi nelson425a,

So you have replaced the sensor.

DTC P1167: A/F SENSOR (SENSOR 1) HEATER SYSTEM MALFUNCTION

NOTE: If DTC P1162 is stored at the same time as DTC P1167, troubleshoot DTC P1162 first, then troubleshoot DTC P1167.

1. Reset the ECM/PCM

2. Start the engine. Wait for at least 80 seconds.
Is DTC P01167 indicated?
YES - Go to step 3.
NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at C102 (located under the under-hood fuse/relay box), the A/F Sensor relay, the A/F Sensor (Sensor 1), and the ECM/PCM.

3. Disconnect the A/F Sensor 4P connector, and ECM/PCM connector C (31P).

4. Connect ECM/PCM connector terminals C14 and C15 to body ground with a jumper wire.

5. Check for continuity between A/F Sensor (Sensor 1) 4P connector terminal No. 1, No. 2, and body ground individually.

Is there continuity?
YES - Replace the A/F Sensor (Sensor 1) (see Primary HO2S & A/F Sensor Replacement ).
NO - Repair open or short in the wire between the A/F Sensor (Sensor 1) and the ECM/PCM (C14 or C15).