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Corsa d 1.2 maf sensor - Cavalier Vauxhall Cars & Trucks

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How to fix opel corsa rough idling and starting problems.


Could be bad coolant temp sensor (common part to fail) that tells ECU engine temp to adjust fuel mix. If it fails it can tell The ECU engine is warmed up when really cold and cause hard starting and poor idle. Could also be IAC or EGR.

Apr 26, 2016 | Opel Cars & Trucks

1 Answer

1998Pontiac Bonneville check engine light is on Code p0171 how can I fix this


  • Bank 1 Oxygen sensor fault: Possible causes:
  • The MAF (Mass Air Flow) Sensor is dirty or faulty
    Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
  • There could be a vacuum leak downstream of the MAF sensor
  • Possible cracked vacuum or PCV line/connection
  • Faulty or stuck open PCV valve
  • Failed or faulty oxygen sensor (bank 1, sensor 1)
  • Sticking/plugged or failed fuel injector
  • Low fuel pressure (possible plugged/dirty fuel filter!)
  • Exhaust leak between engine and first oxygen sensor
  • Solutions:


  • Solutions:


    S

    Jul 20, 2014 | Cars & Trucks

    2 Answers

    The amber light on dashboard of 2004 Opel Corsa Lite 1.4 keeps coming on from time to time. there was a defect on the altenator, but thats been repaired. the engin light worries me a great deal, it comes...


    Check engine lights are used to mostly indicate problems with emission controlling components. Check your pcv valve, egr, map sensors maf sensors or any emmision related component

    Apr 05, 2014 | 2006 Opel Corsa 1.4

    1 Answer

    Corsa 1.3i over revs


    run fault codes and check for MAF/MAP sensors and HO2S and HO2 sensors.

    Feb 18, 2014 | Cars & Trucks

    1 Answer

    Corsa 1.2 sxi has been having starting problems .have changed the crank shaft sensor also the EGR ? It now starts fine but has lost a lot of the power it seems to be holding back.Any ideas please?


    I would also suspect the MAF sensor ( Mass Air Flow ) as this regulates the air to fuel mix. It could also be the TPS ( Throttle Position Sensor) as this regulates the fuel flow into the engine. The cars' computer should have a code stored for the problem - a reputable shop should be able to do a low cost Diagnostic and code scan to steer you in the right direction.
    Hope this helps!!

    Jan 25, 2014 | Cars & Trucks

    1 Answer

    Corsa Faults


    run fault codes and check for ambient air temp sensor fault Check for MAP/MAF sensors faults.

    Oct 26, 2013 | Cars & Trucks

    1 Answer

    Opel corsa


    run the fault codes and look for a faulty ambient air temp sensor/MAP/MAF sensors

    Oct 08, 2013 | Cars & Trucks

    1 Answer

    What does massor volume air flow circuit high input mean?


    1. check for leaks between maf sensor and throttle valve control module 2.voltage supply faulty 3.sensor power circuit open from fuel pump relay to maf sensor 4 .sensor signal circuit open may be disconnected from ecm and maf 5 faulty ground cable resistance between connector terminal 1 and ground 6. mass sensor malfunction. most of the time when sensor circuit high input.either sensor failed or you have fault in ground cable causing resistance between connector terminal 1 and ground.voltage supply to sensor faulty.

    May 25, 2011 | 2001 Volkswagen Passat

    1 Answer

    Check eng light came on used scan but just gave me intake air flow is this a oxgn sensor?


    Nop, about emission codes, check this choice

    OXYGEN SENSOR
    P0171 - System Too Lean (Bank 1)
    Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1.

    Note: This DTC is very similar to P0174, and in fact your vehicle may show both codes at the same time.

    Symptoms: You will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.

    Causes: A code P0171 may mean that one or more of the following has happened:
    * The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
    * There could be a vacuum leak downstream of the MAF sensor.

    Possible solutions include:
    * In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
    * Inspect all vacuum and PCV hoses, replace if necessary
    * Check for a dirty fuel filter and proper fuel pressure



    MASS AIR FLOW SENSOR
    P0102 - Mass Air Flow (MAF) Circuit Low Input
    Basically this means that there is a problem with the Mass Air Flow (MAF) sensor or circuit. A more technical description would be that the MAF circuit had lower than expected voltage (air flow). Other MAF sensor circuit DTC trouble codes are P0100, P0101, P0103, and P0104.

    Symptoms: You will likely not notice any serious drivability problems, although there may be symptoms such as a general decrease in power or sluggishness.

    Causes: A code P0102 may mean that one or more of the following has happened:
    * The MAF may be disconnected, or a wiring connection may be bad
    * The MAF may be dirty or otherwise contaminated (Note: if you use a reusable oiled air filter, be careful not to apply too much oil or that can contaminate the MAF).
    * The MAF sensor may be faulty
    * The vehicle computer may be faulty (very rare)

    Possible Solutions: The simplest thing to do is to reset the code and see if it comes back. Then start with the cheapest, easiest repair procedures:
    * Verify that the Mass Air Flow Sensor wiring is connected properly and that there are no broken / frayed wires.
    * Inspect for any air leaks near the MAF sensor.
    * Take the MAF out and clean it using a spray cleaner such as brake cleaner or electrical contact cleaner. Be gentle with the sensor.
    * Check the voltage of the MAF sensor (refer to a repair manual for vehicle specific information)
    * Replace the MAF sensor.


    If you could send us excalty what fault code number scanned there, we could sens right information. Keep in touch.

    Feb 15, 2011 | Ford Taurus Cars & Trucks

    2 Answers

    Location of mass air flow sensor on a 2002 pontiac firebird


    It should be along the air intake. A block box about 1 1/2" x 2 1/2" held on by 4 ? screws. Easy to replace, but kind of pricey. They make a product for cleaning them. Try that first. Do not touch the wire resistor that goes into the intake. It's delicate.

    Oct 06, 2010 | Pontiac Firebird Cars & Trucks

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