If you don't have any diagnostic software then your best bet would be to replace that sensor. This material may not be mirrored on any World Wide Web, gopher or ftp site without explicit prior authorization. If there is a link to a specific diagnosis strategy for the code then follow that and start testing. Maybe the wastegate isn't working, maybe this is the intake runners clogging on a direct injection engine - but something's wrong, and you can't wait to find out what it is. This information is to be used at your own risk, and should only serve as a procedural reference. Replace the vacuum actuator if it does not perform as expected, or if a manually drawn vacuum decays- however slowly. Similarly, disconnect the control rod if the actuator is vacuum operated, and see if the waste gate mechanism moves freely throughout its permissible range by moving it manually.
If anyone can give me detail about how to eliminate the possible causes to ultimately identify the issue above one by one in a clear way I would greatly appreciate the advice. These are listed in numerical order for easy searching. My guess for you is the sensor is reporting higher than actual boost. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver. On some scanners, this will be indicated as a percentage of opening, while on others it may be indicated as degrees of rotation.
Remove the air filter box assembly so you can access the transmission range switch. If you find one missing let us know and we we'll add it immediately! The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. We do ask that you please read the info available on the site first so that we can help reduce repeat questions. I am going to order a new sensor and keep my fingers crossed. We have a large number of resources to help you repair the problem.
If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. Car worked ok for a couple months. Please use the form on our Contact Page to get in touch with us. For a more rapid data response, narrow the data stream to display only pertinent data. J'ai eu le même problème sur mon scenic au mois de novembre, après le nettoyage rien à signaler pour l'instant. .
The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. The sensor detects intake air temperature and transmits a signal to the Engine Control Module. Some shops are reporting corrosion on the fuel pump ground that reduces power and fuel pressure. Use the scanner to retrieve all stored trouble codes and write them down for future reference. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. Make sure the connector is seated properly.
Move the shifter to the neutral position. Spark plugs typically need to be replaced every season or 25 hours of use. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. If no discrepancies are detected, use the to test the sensors individually. The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. This tells you where to start testing.
I do not know how to test this sensor? Pay particular attention to the reference voltage circuit, which should carry a current of between 4. Thank you all in advance for any help! The language between realoem and terminology people is very confusing at times. The contacts of the sensor are actuated by a pivoting fulcrum extension on the accelerator pedal or the throttle plate shaft. If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. On most applications, this sensor is known as the Manifold Absolute Pressure sensor, and it works by changing its internal resistance in response to changes in the pressure of the intake air.
Your notes may prove helpful if the P2138 is intermittent. In my case the sensor was reporting that the boost pressure was fluctuating between 15 and 20 psi several times per second which is unusual and not probable. Les donnees relevés alors ne montraient aucune anomalie. La vanne d'egr encrasse le collecteur d'admission et retrécit son diamètre au fil du temps. The computer notices the canister is empty when it detects a leaner condition all the vapors are used up and it resumes normal fuel delivery. The author s of this material have attempted to verify correctness of the data contained herein; however, slip-ups can and do happen.