We are not responsible for any actions you take on your vehicle. The data is used to calculate air density and determine the engine's air mass flow rate, which in turn determines the required fuel metering for optimum combustion. Test DescriptionThe numbers below refer to the step numbers on the diagnostic table. Step 5 If all obtained readings fall within the manufacturers specifications, it is likely that there is an intermittent fault present, which can sometimes be extremely challenging to locate and repair. If you have any doubt as to repairs on your vehicle, please contact your technician.
Rescan the system to see if the code returns. Repair power supply, continuity and ground issues as required. Assuming that all other issues had been resolved, record all trouble codes present, and record all available freeze-frame data. They should be the same because they both measure atmospheric pressure. Any help on this would be great.
From this it should be obvious that incorrect or invalid data can cause serious disruptions in the smooth and efficient operation of an engine. This step checks for a short to voltage on the 5V reference circuit. P0108 Description The Manifold Absolute Pressure sensor provides instantaneous manifold pressure information to the engine's Engine Control Module. This allows vacuum to b. If freeze frame data is available, it will serve as a sort of snapshot of the code setting parameter identifiers, which serves to more accurately identify the root cause of code P0105. Is the voltage greater than the specified value? The currently selected is for the Pontiac makes. Also, be sure to scan for all trouble codes present, and to repair all other issues found before diagnosing this code.
Unlike the cheaper Haynes and Chilton manuals that cover multiple year models, leaving the exact information you need to fix your car, these professional manuals cover your exact year, make, model. How to Fix Repairs for this error code are simple, but of course, can only be derived from a proper diagnosis. Contact us if need additional details; good luck. The sensor receives a reference voltage from the computer and ground. On my way to the last. A warm-up cycle occurs when the coolant temperature has risen 22 degrees C 40 degrees F from the startup coolant temperature and the engine coolant reaches a temperature that is more than 70C 158F during the same ignition cycle. If however the above components are all in good order, perform a thorough inspection of all wiring and connectors.
Does the scan tool display a voltage greater than the second specified value? If it is less than 15 or 16 in. Possible Causes There are many reasons for this error code to take place. If the engine idle is unstable, incorrect or if the manifold vacuum at idle is less than the first specified value, correct the condition before using this diagnostic table. However, the four-second code setting parameter may differ between applications, which makes it important to consult the manual for the vehicle being worked on for accurate information on code setting parameters. P0108 Chevrolet Description The Manifold Absolute Pressure sensor provides instantaneous manifold pressure information to the engine's Engine Control Module. We do not have this make so I can only provide a general description of the codes meaning and poss causes.
Therefore, the fault must be sought elsewhere before any control module is replaced. Are you looking for code P0108 troubleshooting help, code P0108 diagnosis tips, code P0108 diagnostics or code P0108 technical information? P0108 code will be generally preceded by the Check Engine Light coming on the dashboard instrument display. Plus, they contain full trouble code descriptions and troubleshooting instructions. If it does, the connector is causing bad contacts. If misfire, or vacuum system related codes are present along with P0105, resolve these codes first before attempting to diagnose and repair code P0105.
P0508 M Idle Air Control Motor Circuit Low Idle Air Control Motor Circuit input below acceptable current. Refer to Wiring Repairs in Engine Electrical. A fuel-injected engine may alternately use a Mass Air Flow sensor to detect the intake airflow. But, if the actual engine vacuum reading is 16 in. A fuel-injected engine may alternately use a Mass Air Flow sensor to detect the intake airflow. If it is, the problem is likely intermittent.
Be sure to disconnect all control modules before doing continuity checks to prevent damaging the modules, and consult the manual on the color-coding and function of each wire in the connector. However, also includes disassembly instructions for interior trim panels and exterior items like headlights and tail lights. P0113 M Intake Air Temperature Circuit High Input Intake air charge temperature sensor input above the maximum acceptable voltage. Comparison of this reading with a known good vehicle is a good way to check accuracy of a suspect sensor. Note: Circuit Low Input codes are often the result of low battery voltages that can have many possible causes , bad connections across electrical connectors or previously repaired wiring, as well as corrosion in electrical connectors. The reading should be close to barometric pressure, see the photo. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code s being investigated.
You can also try wiggle testing the harness and connector to reproduce the problem. Maybe the vacuum line is off or broken. Consult the repair manual to determine the color-coding and location of the wires in the connector. Common Symptoms The most common symptom for this error code is the activation of Check Engine light on the dashboard. Enter the 5 character trouble codes in the search box and submit the search. However, poor connections often result in high resistances in some parts of the circuit, which is why it is important to perform resistance and continuity checks during the diagnostic procedure. Is the test light illuminated? Look up the other , please use the search box.