cam position sensor is bad (the sensor is on the left side of the valve cover on the 2.0L) otherwise it won't spark even if it's good. did you check more than one plug? Make sure that you hold the spark plug against the engine block or a good ground when checking. I would not just to this conclusion unless it was only 1 coil that wasn't sparking. Without looking at ECU flowcharts (you'd have to work for Mazda to get them), I don't think that the temp gauge pegged at hot would stop the car from starting. Check our online store for a re-manufactured unit or head to your local auto parts store.This can be one of the most frustrating problems to diagnose. If the test results don’t match our How To test your Mazda Protege MAF, it means your mass air flow sensor has failed and needs replacing. The final RPM check would be to raise the engine speed to 3000 RPM, and around this RPM your MAF output should be 1.6-1.7 volts DC. Now have a friend raise the engine speed to 1500 RPM, and the signal should rise to 1.7 volts DC. Once you have your engine started, the Protege MAF output should be around 1.1 volts DC. As I explained earlier, the more air that rushes into the engine, the higher the voltage from the Protege MAF will be. Next you will be measuring the middle pin for Voltage using your multimeter. Keep all your clothing and personal items clear of your drive belts and engine, and turn on your engine. ![]() Reconnect the MAF connector and slide the paper clip into PIN B, and this next part is a little more dangerous. In order to complete this part of our Protege MAF test, you must use a paperclip to backpin that middle PIN. This causes changes and fluctuations in the output voltage, and this is what you ECU uses to interpret air flow. The Protege MAF uses a hot wire element, that lowers in voltage as air rushes through it. This signal wire is what transmits the data back to your Mazda ECU, which allows it to run the engine. The final part of this how to test a Protege MAF guide is to measure the signal, which is PIN B. If you have a ground signal here at PIN A, your Protege MAF has the right power and ground to operate. Now the next thing you will be testing on the Protege MAF, check PIN A for a low reference ground signal. With the key turned to the “ON” position, you should see 12 volts at this wire. Gently probe the front of PIN C with the red lead of your multimeter, and touch the black lead to the negative terminal of your battery. Now unplug your Protege MAF and the first wire you will be testing is PIN C, which should be a WHITE wire with a RED stripe. This powers all the sensors in your engine bay, and will allow you to check whether or not your MAF is getting power. To begin this MAF testing how to guide, you must first insert the Mazda ignition key and turn it to the “ON” position. If you aren’t sure of what a multimeter is, or how to use one check our how to guide here. ![]() You will be using a multimeter to test the wires for power first and foremost. Your mass air flow sensor has 3 total wires coming out of it. Today you will be testing to make sure that your MAF is getting power, ground and sending the right signals. ![]() The Mazda Protege MAF is a three pin sensor that’s connected to your engine harness by way of a weather proof connector.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |