What happens when the fuel injector is not working?
This ruins fuel economy since all of the fuel may not be combusting, and you have to press harder on the gas pedal to get the car to move. Fuel injectors are a particular type of solenoid that are made to actuate their pistons very quickly.
Where to find OBD I code on Honda Civic?
Honda Motor Corporation OBD I diagnostic trouble codes are retrieveable without any special tools by simply following the instructions here. The codes are listed for Accord or Civic models seperately when required. The codes are defined as to what system is affected. When possible we give the more commonly known OBD II component name.
What should the ground voltage be on an injector?
One will be connected to ground and will read 0 volts. The other should read around 12 volts. Step 5: Repeat with all injector wiring harnesses. Leave the ground lead in position and test all of your injector wiring harnesses. They should all be around 12 volts. A lower reading means there is excess resistance in the wire somewhere.
How many ohms does a high impedance injector have?
High impedance injectors are the most common found on cars these days. They will range from 12 to 17 ohms. Low impedance injectors are found on high performance and larger injectors. They have much lower resistance, typically around 2-5 ohms. Step 5: Repeat with all injectors. They should all have a resistance within half of an ohm from each other.
This ruins fuel economy since all of the fuel may not be combusting, and you have to press harder on the gas pedal to get the car to move. Fuel injectors are a particular type of solenoid that are made to actuate their pistons very quickly.
Is there a problem with the number 2 injector?
Now, since it’s only the number 2 injector, it shouldn’t be the injector driver in the ecu. Look at wiring diagrams again and trace the injectors back to the ecu, checking for voltage just like you did before. Most likely you have an open somewhere. found the problem, the wire from the #2 harness to like where the CAS looked a little brittle.
How to check for pulse on fuel injector?
First grab that multimeter. T-pin into the “power” side of the injector with the key in the run position. You should have battery voltage. If you don’t, grab a wiring diagram and follow those wires back, continually checking for power the whole way.
Which is the ground wire for the fuel injector?
Minor correction, the wire to the ECU is the “ground” wire, it’s the one the ECU pulls low to fire the injector. The wire to the injector resistor pack is the power wire. Now, since it’s only the number 2 injector, it shouldn’t be the injector driver in the ecu.
What causes no power to fuel injectors?
The most important signals that determine the accuracy of a signal coming out of ECU to injectors are crankshaft position sensor and camshaft position sensor, so to test a bad injector, you have to check the voltage on the injector when the ignition key is turned on: NO VOLTAGE? , so what causes no power to fuel injectors?
First grab that multimeter. T-pin into the “power” side of the injector with the key in the run position. You should have battery voltage. If you don’t, grab a wiring diagram and follow those wires back, continually checking for power the whole way.
Now, since it’s only the number 2 injector, it shouldn’t be the injector driver in the ecu. Look at wiring diagrams again and trace the injectors back to the ecu, checking for voltage just like you did before. Most likely you have an open somewhere. found the problem, the wire from the #2 harness to like where the CAS looked a little brittle.
How can I tell if my car injector is working?
Any major difference and that injector should be inspected to make sure that it is firing correctly. Tip: You can find the correct resistance for your injectors by searching online or in your vehicle’s repair guide. Step 1: Turn the car on. Turn the key to the second (ON) position for this test.
How much does it cost to diagnose a P0300 Infiniti code?
The cost to diagnose the P0300 INFINITI code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour. How much do you know about cars? When is the code detected?
How to ensure fuel injectors are receiving the correct range?
Step 1: Turn the car on. Turn the key to the second (ON) position for this test. You want battery power flowing, but don’t want the engine running. Step 2: Set up DVOM to measure DC voltage. Use the lowest range possible if the meter doesn’t auto range.
Which is high impedance or low impedance fuel injectors?
Place the meter leads on the prongs inside the connector, making sure that they are not touching each other. High impedance injectors are the most common found on cars these days. They will range from 12 to 17 ohms. Low impedance injectors are found on high performance and larger injectors.