Question about 2005 Honda Civic

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Engine light comes on and off once in a week.sent to dealer and they change oxygen sensor ($350)didnt work.my regular service to dealer is done on time. I also top up my gas evry day to avoid condensa

Engine light comes on and off once in a week.sent to dealer and they change oxygen sensor ($350)didnt work.my regular service to dealer is done on time. I also top up my gas evry day to avoid condensation at tank. I tightened gas cap more than 3 clicks evrytime I filled up gas. I went to dealer second time But they have to replace whatevr they can diagnosed which I'm afraid on keep on spending those parts which will not work on the future. Any help... thanks alan

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  • yreja663 May 28, 2009

    yes they scan in the first place and probably reset it. After a week it came on again, and they want to scan again , replace suspected parts with my own expense.

  • drewhal May 11, 2010

    you need to tell us what the check engine light code is. here is a list of possibles:

    -----CEL # List-----

    1 O2A - Oxygen sensor #1

    2 O2B - Oxygen sensor #2

    3 MAP - manifold absolute pressure sensor

    4 CKP - crank position sensor

    5 MAP - manifold absolute pressure sensor

    6 ECT - water temperature sensor

    7 TPS - throttle position sensor

    8 TDC - top dead centre sensor

    9 CYP - cylinder sensor

    10 IAT - intake air temperature sensor

    12 EGR - exhaust gas recirculation lift valve

    13 BARO - atmospheric pressure sensor

    14 IAC (EACV) - idle air control valve

    15 Ignition output signal

    16 Fuel injectors

    17 VSS - speed sensor

    19 Automatic transmission lockup control valve

    20 Electrical load detector

    21 VTEC spool solenoid valve

    22 VTEC pressure valve

    23 Knock sensor

    30 Automatic transmission A signal

    31 Automatic transmission B signal

    36 traction control found on JDM ecu's

    41 Primary oxygen sensor heater

    43 Fuel supply system

    45 Fuel system too rich or lean

    48 LAF - lean air fuel sensor

    54 CKF - crank fluctuation sensor

    58 TDC sensor #2

    61 Primary oxygen sensor

    63 Secondary oxygen sensor circuit

    65 Secondary oxygen sensor heater wire (black wires)

    67 Cat Converter

    71 random misfire cylinder 1

    72 random misfire cylinder 2

    73 random misfire cylinder 3

    74 random misfire cylinder 4

    80 EGR Valve/Line

    86 ECT sensor - Cooling System

    91 Fuel Tank pressure sensor

    92 EVAP Solenoid/Valve/Vacuum Lines

  • Eric Shephard May 11, 2010

    Alan, are they scanning the vehicle for codes first?

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  • 179 Answers

Hi, first off don't ever top off your tank I don't know who told you to do this but this is a bad thing. This by itself will cause your engine MIL to come on most likely with a code PO455 large evap system leak. by topping off your tank you are installing a problem on your own vehicle what happens is as the gas heats up it expands normally there is enough room at the top of the tank to stop overflow, but when topped off it overflows into the charcoal canister and starts leaving a caron buildup in your granulated charcoal and will render it useless and a replacement will be necessary. also make sure you clean your gas cap off very well with alcohol. As this by itself can cause your MIL to turn on intermittently and set a PO442 small evap leak code.

Posted on May 31, 2009

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This is a heated oxygen sensor and the computer is detecting that there is a problem with the heater portion not working. And the other code is caused because the heater is not working.

This could be a fuse, wiring, a connector with a poor connection, or the heater in the oxygen sensor (replace oxygen sensor in that case).

Generally oxygen sensors should be changed every 60,000 miles as a regular maintenance item. And when I replace mine, I get better gas mileage (also my engine is more lively). So I see this as a money saving thing myself.

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Anyway information for troubleshooting and/or replacing this would probably be in an aftermarket repair manual for your vehicle (auto parts store). But this information would for sure be in a Factory Service Manual set for your vehicle which you can order from your dealer.

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0152 coed


P0152 P0152 - O2 Sensor Circuit High Voltage Bank 2 Sensor 1Possible causes - Faulty Front Heated Oxygen Sensor Bank 2
- Intake air leaks may be faulty
- Exhaust gas leaks
- Front Heated Oxygen Sensor Bank 2 harness is open or shorted
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eplacing the Front Heated Oxygen Sensor Bank 2 usually takes care of the problem
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