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Engine light on fault code p3042 engine runs fine

Have serched forums no one has a straight answer

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
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Posted on Jan 02, 2017

xalint1
  • 150 Answers

SOURCE: Check Engine Light

Hello engelhard58
I have attached a link that can give you some of the reasons why your getting that code.I hope you able to get your answer out of that.
Mean of the code=P0420 Catalyst System Efficiency Below Threshold.
Link to site

Posted on Dec 12, 2008

  • 104 Answers

SOURCE: 95 camry v6 checking engine fault codes

Have it scan for codes and let me know.

Posted on Jul 04, 2009

SOURCE: can I get the fault codes without using a reader?

You will have to use a "reader". All vehicles manufactured after 1995 are termed OBDII (Onboard Diagnostics II) and the diagnostics can only be accessed with a OBDII reader. Prior to 1996, OBDI vehicles could "flash" fault codes on the check engine light. The good news is that many retail auto parts stores will let you use their reader right in the parking lot!

Please do a little research on the codes you do find before you purchase a replacement part. The problem might be a bad connection to a sensor(s), worn sparkplug(s) / wire(s) or simply a dirty air cleaner.

Good luck, rhais.

Posted on Jul 07, 2009

czaa
  • 4514 Answers

SOURCE: 1993 XJ6 4.0 Fuel 39 / Fail 39 Engine seems to run

1st u need a service manual-it has pages of codes-ch engine lite can mean old 02 sensors-cheers mate

Posted on Aug 22, 2009

dttech
  • 4803 Answers

SOURCE: almera p1229 fault codes

That is a manufacturer specific code. I would have to know what we are working on before I could help you with that.

Posted on Dec 20, 2011

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Susan, 01435 - Brake Pressure Sensor 1 - Electrical Fault in Circuit. Your vehicle will have to be fixed or reprogrammed by a capable technician. Check the attached links,
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Can I get the fault codes without using a reader?


You will have to use a "reader". All vehicles manufactured after 1995 are termed OBDII (Onboard Diagnostics II) and the diagnostics can only be accessed with a OBDII reader. Prior to 1996, OBDI vehicles could "flash" fault codes on the check engine light. The good news is that many retail auto parts stores will let you use their reader right in the parking lot!

Please do a little research on the codes you do find before you purchase a replacement part. The problem might be a bad connection to a sensor(s), worn sparkplug(s) / wire(s) or simply a dirty air cleaner.

Good luck, rhais.

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