- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
They are different types of sensors, but in your car the MAP (manifold absolute pressure) sensor, along with the BAROmetric sensor are used to estimate the required fuel flow through the throttle body injectors. These sensors measure pressures inside and outside the engine to estimate airflow. You do not have a MAF sensor. These are more common in later vehices with mulit-port fuel injection. A MAF sensor actually measures the airflow into the engine using a hot wire anemometer. You are correct in believing the sensors serve the same purpose, that is to calculate the fuel flow required for stoichiametric combustion. The oxygen sensor also feeds back to the computer to further refine the fuel charge by measuring oxygen in the combustion products. If excess oxygen is detected, the fuel charge is increased. This is known as closed-loop operation. Closed loop operation is not started until the engine is at operating temperature. If you have more questions, please let me know. I have pasted the location of the MAP sensor below. The sensor is mounted to the air cleaner, but it has a vacuum hose that leads to the throttle body, which is where the pressure must be measured.
MAP SENSOR ON TOP OF INTAKE BESIDE THE SUPERCHARGER. TAKE THE NEW MAP SENSOR USE IT FOR REFERENCE LOCATING OLD MAP SENSOR. WHEN YOU SEE IT ON INTAKE IF MATCH UP WITH OLD MAP SENSOR THEY MATCH UP YOU LOCATED THAT IT.
I would look at the Map Sensor or the O2 Sensor then the EGR Valve. As far as I know all vehicles have EGR valves. Get the Haynes Manual on your vehicle for location and replacement steps for all of these. It could also be a Throttle Position sensor or clogged or malfunctioning injector units, the Haynes manual will assist you in isolating these.
THE MAP SENSER IS VERY EASY!!!!! Its on the top of the BLACK PLASTIC going to your air filter..IT will be 2 inches by 3 inches with 1 plug and 3-4 screws holding it depending on engine size...VERY EASY GIG....Make sure when you remove it to get the hole cleaned out sometimes the old map sensor breaks the plastic off...
ANSWERED BY GARY KNOWS ALL
The crank sensor is located on the side of crankshaft damper/pulley it mounted on a bracket. However it think that you may have a map-sensor problem that's very common with this vehicle. The crank sensor is not hard to change at all. Good Luck get back in contact if you need more help