Showing posts with label passat. Show all posts
Showing posts with label passat. Show all posts

How to Install a Camshaft Position Sensor on a 2002 VW Passat

Sunday, May 18, 2014 | Labels: , , , , , , , , , , | 0 comments |

Volkswagen uses a camshaft position sensor on the 2002 Passat sedan to relay information about the camshaft position and engine speed to the electronic control module to determine ignition timing and fuel injection synchronization. Located on the cylinder head behind the upper timing belt cover on the 1.8-liter engine, the sensor is accessible for removal and replacement. Replace the sensor using basic hand tools.

Instructions

    1

    Locate the cam position sensor electrical connector on the timing belt cover just to the left of center of the engine. Unlock the connector retaining tab and pull the connector off the sensor.

    2

    Unlock the upper timing belt cover retainer clip at the top-right corner of the cover. Pull the top of the cover away from the engine slightly and disengage the upper cover from the tab in the lower cover. Lift the upper cover straight up and out of the engine compartment.

    3

    Remove the two camshaft sensor retaining bolts using a ratchet and socket. Pull the old sensor off the engine.

    4

    Make certain the tab on the faceplate on the end of the camshaft is properly indexed in its detent. Install the new sensor on the engine. Install the two sensor retaining bolts and torque them to 88 inch-pounds using an inch-pound torque wrench and socket.

    5

    Position the upper timing belt cover on the engine. Engage the tab in the lower timing belt cover with the slot in the upper timing belt cover. Snap the upper cover into place. Install the camshaft sensor electrical connector and ensure the retainer locks in place.

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How to Reset the Computer on a 1997 Volkswagen Passat

Monday, November 18, 2013 | Labels: , , , , , , , , , | 0 comments |

When it comes to resetting computers, many people believe that you can simply disconnect the vehicles battery and the computer will be automatically reset. This, however, is not the case with modern vehicles and computer systems, including the 1997 Volkswagen Passat. In these vehicles, the engine control unit, or ECU, has an internal battery that maintains memory power to keep track of all the settings, trouble codes, and other data. The proper way to reset the computer is to clear all of the trouble code data from its memory with a scan tool or code reader.

Instructions

    1

    Shut down the engine, but leave the ignition switch in the ON position. If you turn the ignition switch completely off, the scan tool will not be able to communicate with ECU.

    2

    Locate the data link connector, or DLC, under the dashboard near the hood-release latch. Plug the open end of the scan tools cable into the DLC. Make sure that it is completely seated so it doesnt come loose in the middle of clearing the codes.

    3

    Turn on your scan tool and enter any information that it asks for. Typically, youll need to enter the year, make, model, transmission type, and engine size of your vehicle.

    4

    Use the menu keys to navigate to the diagnostic trouble code, or DTC menu. Each scan tool, depending upon its manufacturer, has a different menu layout. You DTC menu may be called something like Codes or Trouble Codes. Either way, the idea is the same.

    5

    Choose the option to erase the trouble codes from the ECUs memory. Select Yes or OK if the scan tool asks you if youre sure you want to clear the codes. Most scan tools will ask you this to avoid accidentally clearing the diagnostic data. Disconnect the scan tool once the screen confirms the codes have been erased and the computer is reset.

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