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Discussion Starter · #1 ·
1998 beetle sometimes dies while driving at highway speeds. Starts immediately after pulling over to side of road and usually runs and drives with no issues for a period of time.

Yesterday, the engine died twice but started right up as usual. It also seemed to surge forward on its own a couple of times when driving in slow-moving rush hour traffic.

I think the throttle body needs a good cleaning and camshaft position sensor may need replacing.

Fairly confident in my abilities to clean the throttle body, but not sure about re-setting after cleaning.

Any tips on this or on how difficult the camshaft position sensor replacement would be?

Thanks in advance.
 

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16725/P0341/000833 - Ross-Tech Wiki

P1544 OBD Trouble Code

1 result found

P1544 - Volkswagen
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description
Throttle motor position high input
Location Sensor 1
Cause
Wiring short to positive, throttle motor position sensor

P1544 Volkswagen

P1544 Volkswagen - Throttle Actuation Potentiometer Signal Too High

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0 P1544 Volkswagen Comments | Add Comment
Possible causes
- Faulty Throttle Valve Control Module
- Faulty Throttle Actuator
- Throttle Actuator harness is open or shorted
- Throttle Actuator circuit poor electrical connection
Help with Possible causes What does this mean?
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)


Read more: P1544 Volkswagen Throttle Actuation Potentiometer Signal Too High OBDII Engine Light Trouble Code | Engine-Codes.com

Generic OBD Error Code Details for P0510
Closed Throttle Position Switch
What does this mean?
OBD Code P0510refers to
A closed throttle position switch and wide open throttle position switch are built into the Throttle Position Sensor (TPS) unit. The wide open throttle position switch is used only for A/T control. When the throttle valve is in the closed position, the closed throttle position switch sends a voltage signal to the ECM. The ECM only uses this signal to open or close the EVAP canister purge volume control solenoid valve when the throttle position sensor is malfunctioning.
Symptoms
Possible symptoms of OBD code P0510
- Engine Light ON (or Service Engine Soon Warning Light) - Engine idle problems - Possible hard to start - Possible shifting problems
Causes
Possible causes of OBD code P0510
- The closed throttle position switch Harness or connectors is shorted - Closed throttle position switch - Throttle position sensor The Error code is generally activated on detection of the following conditions: Malfunction is detected when battery voltage from the closed throttle position switch is sent to ECM with the throttle valve opened.
Possible Solutions
Adjusting the Throttle Position Sensor (TPS) takes care of the problem.

Based upon the above:

1. possible electrical issues; throttle body

a. with the 2.0L; dying and idle problems, have been associated with a dirty throttle body, problems with the throttle body and/or the need for a throttle body adaptation, you could try the "poor mans" throttle body alignment or you ross tech vcds, to do the procedure.

2.camshaft position sensor:

a. possible electrical issues or component failure; do some testing and troubleshooting to confirm

For troubleshooting and replacement procedures; check out these vw manuals, online:

Volkswagen Workshop Manuals
 
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