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P0420 2003 pontiav grand prix CEL on and the guy at the auto shop says its a code p0240 whats that Mean? what might the problem be? and solutions?

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  • Cars & Trucks Master
  • 14,333 Answers

So which code is it .

Posted on Jan 14, 2013

  • 2 more comments 
  • ptrmorsey
    ptrmorsey Jan 14, 2013

    P0240

  • Thomas Perkins
    Thomas Perkins Jan 14, 2013

    Your code is P0420,no such P0240,which means you need a new catalyst convertor.

  • ptrmorsey
    ptrmorsey Jan 14, 2013

    Do you know what the Cost will be?

  • Thomas Perkins
    Thomas Perkins Jan 14, 2013

    I read on Forum that said go to dealer,aftermarket don't work good.I don't know.To get a free estimate,take to dealer for oil change and they will find problem and tell you what and how much,but you don't have to get it there if you don't wan't to,check at Midas,they will check too.I use them,lifetime warranty.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

SOURCE: what does a P0102 code mean?

P0102 - Mass Airflow Circuit Low Input

Check to make sure the mass air flow sensor is plugged in and has a good connection. Do you happen to use a re-usable air filter such as a K&N? Often times when people recharge the re-usable filters they use too much oil which causes the the MAF sensor element to get dirty. Sometimes removing the sensor and cleaning the element very carefully with electronics cleaner can fix the problem.

By the way, the mass air sensor is mounted between the intake tube and air filter usually.

Posted on Apr 16, 2009

motor1258
  • 6674 Answers

SOURCE: what does a P0650 code mean?

I believe it's a warning light malfunction. In other words, have it scanned and see if any codes come up. There is conflicting reports but basically your vehicle is trying to tell you something by way of a warning light on dash, that's not working.

Posted on Apr 16, 2009

techbuster
  • 5081 Answers

SOURCE: ignition key stuck in 2003 Grand Prix

If you have an auto trans, check to make sure the car is in park. If the shift lever is even slightly misaligned, (even though the indicator says PARK) your key won't come out.
Try spraying the tumbler with powdered graphite.
It is a common problem, and I found two possible answers. The ignition plunger in the ignition switch or the Park release solenoid located in the center console. I've heard that when the solenoid sticks it prevents your key from being released. I have not fixed mine yet, I just use the inside of a ball point pen to release the plunger by sticking it in the access hole under the ignition.

Posted on Oct 21, 2009

BCAS1298
  • 3092 Answers

SOURCE: P0240 trouble code

Acura code P0240 - Turbo / super charger boost sensor (B) circuit range performances.

It's is best to take it to a certified repair shop, where they can get actual reading's from your Turbo sensor's.
You don't want to drive it that way it will damage your Turbo and there very $$$..

Posted on Jan 26, 2010

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Molson02536
  • 3854 Answers

SOURCE: 2005 pontiac grand prix, code p0641 came on. What

DTC P0641 The powertrain control module (PCM) provides a 5-volt reference to the following sensors:

The throttle position (TP) sensor 1
The accelerator pedal position (APP) sensor 2
The engine cooling fan speed sensor
The AC pressure sensor
The fuel tank pressure (FTP) sensor
The oil pressure sensor (OPS)
The PCM monitors voltage on the 5-volt reference circuit. If the voltage is higher or lower than required, DTC P0641 will set.

Conditions for Setting the DTC
The PCM detects a voltage that is higher or lower than required on the 5-volt reference circuit. The above condition is present for 1 second. Action Taken When the DTC Sets The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails. The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame/Failure Records.
Conditions for Clearing the MIL/DTC The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail. A current DTC, Last Test Failed, clears when the diagnostic runs and passes. A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic. Clear the MIL and the DTC with a scan tool.

Yes i can be dangerous, depending which issues mentioned above has triggered the code such as a faulty gas peddle position sensor. the code can also cause a reduced engine power to activate.

Thank you for using Fixya and best advice is to have the dealer address these issues. A tech 2 scanner would be needed to address the P0641 DTC code.

Posted on Mar 19, 2010

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P0240 trouble code


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Thanks for using FixYa - a FixYa rating is appreciated for taking the time to answer your FREE question.

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