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2004 Passat getting C; EV; 2A; O codes with OBDII code reader

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 22 Answers

SOURCE: 2003 VW Passat OBDII connector

Hi, you have to remove side fuse cover and remove 4 bolts 8mm.Pull foot well cover and secure conector.It may need new housing for OBDII conector.

Posted on Mar 08, 2009

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chrischronic
  • 235 Answers

SOURCE: can't read codes with code reader

you most likley have a blown fuse. the fuse for the connector and cig lighter are usually on the same circuit . if you have a owner manuel check and see which fuse is for the obd/cig lighter. if you dont have a manuel then check every fuse in the box and see if you find a blown one. the plug whare the scanner connects is what powers the scanner so if you cant find a blown fuse then you know youre not getting power to the plug for some reason.

Posted on Apr 24, 2009

motor1258
  • 6674 Answers

SOURCE: p0300,p0301,p303,p305 p306 and p0340 and

Cam sensor.

Posted on Jul 09, 2009

toneman2121
  • 775 Answers

SOURCE: Where is Bank 1 Sensor 2 located on a 2004 Mazda

bank 1 is the bank of cylinders closest to the firewall. the sensor will be located along the exhuast from that side after the catylitic converter

Posted on Apr 01, 2010

SOURCE: 2004 lincoln ls has p0420 code c ev o oh e

If you have a 2004 lincoln ls,the PO420 is-- Catalyst System Efficiency Below Threshold. ( Bank 1) The list of possible causes are long. I have the same vehicle, and the Emissions Manual,which is several hundred dollars. Don't let anyone tell you it is a bad Converter. It may be, but it is only six years old. I would check for codes. The ignition coils (Coil-On-Plug) go bad on all Fords and a misfire, resulting overheating of exhaust system etc,will set all kinds of codes,and they may not be related, to the real issues. Lincoln is where one of everything goes,when it comes to the latest technology. Check that the O2 Sensors are screwed in tight. Later on you may need to have them checked out,if no ignition issues or malfunctioning coolant temp sensor issues. Use only 5-20 Oil. I use Mobil 1 synthetic. Hopefully your not using any,and ruining the converter. Make sure you have the system full of coolant,including the Degas container,the one where antifreeze mix goes. Remember GO5 Yellow antifreeze on ford products. Also bleed the hose next to the brake booster to let out air,in the coolant system. You can check for above normal fuel pressure. I would not go to a Dealer and spend more than necessary. Find a good shop that knows these vehicles. You can't fix every problem on all makes that come thru your doors today. Hope I give you a start on things to have checked. I would stand in the service bay by the car and have the tech prove what is wrong before I would authorize any part replacement.

Posted on Apr 07, 2010

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2003 VW Passat OBDII connector


Hi, you have to remove side fuse cover and remove 4 bolts 8mm.Pull foot well cover and secure conector.It may need new housing for OBDII conector.

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