Question about 1997 Nissan Quest

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No heat sensor 1 bank 1 did back probe is there a relay or fuse

Check engine light comes on at start up po135 I erase code open ignition start can drive with no light till next start up

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There is a fuse (fuse #4) for the heated O2 sensor. Make sure the fuse is good and that there is not an open circuit to the power source.

Posted on Jul 26, 2009

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Hi, I am getting Faulty codes P0036, P0056, P0141, P0161 in reference Bank 1 and Bank 2 for sensors 2 on 2003 CTS.I was told the sensors where changed but codes still appear?


If the sensors were replaced an DTC'S come back has to be a wiring problem or PCM ,
The ECM detects that the HO2S heater low control circuit voltage is between 2.6-4.6 volts when the heater is commanded OFF, indicating an open HO2S heater circuit.
Is the fuse open?
All four codes refer to the heating element circuit ! there is a relay in the under hood fuse box that supplies B+ voltage to the O2 sensor heating elements . I would change that or test the relay , videos on you tube on testing relays .
MAIN Relay
--
LO SPEED Relay, HI SPEED Relay, S/P FAN Relay, PRE O2 Fuse, IGN-1 Fuse, ECM Fuse, POST O2 Fuse, and INJ Fuse
Also check
POST O2 Fuse
10 A
HO2S Bank 1 Sensor 2 and HO2S Bank 2 Sensor 2
PRE O2 Fuse
10 A
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 and HO2S Bank 2 Sensor 1

Jul 23, 2016 | 2003 Cadillac CTS

2 Answers

P1133/oxegen sensor


MAKE SURE THE CONNECTIONS AT THE SENSOR ARE GOOD,ALSO CHECK FOR VACUUM LEAKS,HERE'S A LINK TO YOUR CODE,THE OLD SENSOR MAY BE GOOD,JUST A VACUUM LEAK, P1133 Chevrolet HO2S Insufficient Switching Bank 1 Sensor 1

Oct 17, 2015 | 2002 Isuzu Rodeo Sport S 3.2L V6 Hard Top

1 Answer

Engine shuts off after driving 45 min when parking in reverse.But 15 min before this engine and slippery road icon comes on.2 hrs later car starts and drives normal then shuts off again 45 min later.


most commonly found problem relates to an electronic component heating up and shutting down. Have you checked to confirm there is fuel pressure when the vehicle shuts off. Is the check engine light on. Have you checked codes ? I suggest hooking up a fuel pressure gauge and letting vehicle run till it shuts off while monitoring the fuel pressure. If you loose fuel pressure, next step is to confirm there power going to the pump, if there is power going to the pump with no fuel pressure replace pump. Another suggestion would be to check for spark when vehicle stops running to eliminate an ignition problem. good luck

Aug 17, 2015 | 2008 Toyota Highlander

1 Answer

Why the codes po125 & po135 &po155 keep coming back?


Hi there:

DTC P0125 - Insufficient Coolant Temperature For Closed Loop Fuel Control

The simplest thing to do is to reset the code and see if it comes back.
If the code comes back, the problem is likely going to be the result of the above causes (faulty thermostat, faulty ECT sensor, or a low coolant level).


DTC P0135 - Oxygen O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
or
DTC P0155 - 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)

A code P0135 and P0155 may mean that one or more of the following has happened:

  • O2 Heater element resistance is high
  • Internal short or open in the heater element
  • O2 heater circuit wiring high resistance
  • open or short to ground in the wiring harness

In order to solve just...
  • Repair short or open or high resistance in wiring harness or harness connectors
  • Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)


  • Hopoe this helps.

    Aug 28, 2012 | 1999 Toyota Sienna

    1 Answer

    2005 dodge grand caravan 3.8 code po135 in stalled new botch o/2 sensor cleared codes drove van check eng light came back on same code whats is going on


    Code 135 is for a faulty heater in the O2 sensor. Since you have replaced the sensor the problem is probably the circuit or the power source for the heater.
    You'll need to check the heater circuit next.

    Jul 29, 2012 | Cars & Trucks

    2 Answers

    What code mean po302,,,,po135...p1705


    P0302 TOYOTA - Cylinder 2 Misfire Detectedxicon.jpghttp://engine-codes.com/p0302_toyota.htmlForum CodePossible causes- Faulty spark plug 2
    - Faulty ignition coil 2
    - Ignition coil 2 harness is open or shorted
    - Ignition coil 2 poor electrical connection
    - Clogged or faulty fuel injector 2
    - Injector 2 harness is open or shorted
    - Injector 2 poor electrical connection
    - Improper spark plug 2
    - Insufficient cylinder 2 compression
    - Incorrect fuel pressure
    - Intake air leak
    P0135 - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1xicon.jpghttp://engine-codes.com/p0135.htmlForum CodePossible causes- Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit
    - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground
    - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection
    - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse
    - Faulty Engine Control Module (ECM)
    Tech notes The code means that there is a problem with the heater element circuit of the heated oxygen sensor. The Engine Control Module (ECM) monitors how long it take the sensor to warm up and start sending an adequate signal. The code means the the sensor is taking too long to warm up. Replacing the O2 Sensor 1 usually takes care of the problem
    P1705 TOYOTA - Direct Clutch Speed Sensor Circuit Fault.
    This is related to the sensor that gives info about the slippage rate o fthe transmisssion to the Transmission Control Module..

    Jul 15, 2012 | 1996 Toyota Camry

    1 Answer

    What would make check engine light not come on


    Every time you recycle the ignition switch you erase the trouble code and start all over again. Go into history codes to check for problems.

    Jun 23, 2012 | 1999 Kia Sportage

    1 Answer

    1995 Cadi SLS Codes, P0030 & P0036, Ckt Fuse or Relay Defective, checked fuse ok, where is relay located?


    Hi there,

    P0030 = HO2S Heater Control Circuit (Bank 1 Sensor 1) - No.1 Heated Oxygen sensor on bank 1.
    P0036 = HO2S Heater Control Circuit (Bank 1 Sensor 2) - No. 2 Heated Oxygen sensor on bank 1

    For both of these to trigger on the same bank, means most likely an Open or Short to Ground condition (somewhere on the Bank 1 circuit) stopping the HO2 sensors from reaching their working temperature.

    Check the following in this order:

    1) Using a multimeter, check 'continuity' of the Oxygen circuit FUSE terminals (don't rely on visual inspection alone) or replace fuse with a known good one.
    2) Check for moisture getting into both oxygen sensor connector terminals (bank 1).
    3) Check for good connection at Oxygen sensors (bank 1).
    3) Have both heated oxygen sensors on Bank 1 tested (ensure their values are to specification).
    4) Check HO2 pin-outs of the PCM for correct voltage.

    Only replace the HO2 sensors as a last resort (if out of spec).

    Then engine department relay centre & fusebox location is behind the washer bottle, but I believe the HO2 sensors are connected direct to the PCM, not a relay.

    Cheers,


    "If this has helped you in any way, please rate this solution"

    May 07, 2011 | Cadillac Seville Cars & Trucks

    1 Answer

    2001 silverado po300 code and po135 code changed 2 o2 sensors still coming up have not changed driver side o2s yet


    Well the P0300 code has nothing to do with your O2 sensors just a heads up.

    P0300: Random/Multiple Cylinder Misfire Detected

    When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the crankshaft position (CKP) sensor (POS) signal to vary, Powertrain Control Module (PCM) or Electronic Control Module (ECM) can determine that a misfire is occurring.

    Causes:
    - Improper spark plug
    - Insufficient compression
    - Incorrect fuel pressure
    - The injector circuit is open or shorted
    - Fuel injectors may be faulty
    - Intake air leak
    - The ignition signal circuit is open or shorted

    Solutions:
    - Perform Injector Service
    - Replace Spark Plugs
    - Replace Injectors
    - Replace Ignition Coils

    P0135: O2 Sensor Heated Circuit Malfunction Bank 1 Sensor 1

    The front heated oxygen sensor (or sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the ECM. The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

    Causes:
    - Harness or connectors (The sensor circuit is open or shorted)
    - Front Heated oxygen sensor (Bank 1) may be faulty

    Solutions:
    Replacing the O2 Sensor 1 usually takes care of the problem

    Jan 27, 2011 | 2001 Chevrolet Silverado 1500

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