How to check the ECU on a Nissan 300ZX?
Connect the Consult cable to the Consult Port on your car, and plug it into your computer. c. Turn the key to “ON” (you can start the car if you want, but there’s really no point). d. Launch the program. e. Click “Self-Diagnostics.” f. The program will check the ECU for codes and display them and their meaning.
What causes a failure code on an EGR system?
Another common problem causing failure codes in this system is that the tip of the valve will become irregular shaped from carbon deposits. When this happens it no longer creates a perfect seal. This can allow exhaust gas to continue to flow when not called for by the computer. An example would be at engine idle or when the vehicle is cold.
What does the code mean on Nissan 300ZX?
The code is a two-digit number, represented by a series of long blinks for the first digit, immediately followed by a series of quick blinks for the second digit. Then a long pause, then the next code (or the same again if there’s only one).
Where does the coolant temperature ( ECT ) sensor go?
The readings from the engine coolant temperature (ECT) sensor; are sent back to the engine control unit (ECU). The engine coolant temperature (ECT) sensor is one of the most important; engine management sensors.
How do you check the ECU on a Nissan 300ZX?
To check the right O2 sensor, turn the screw on the ECU fully clockwise, wait 2 seconds, and then turn back fully counter-clockwise, the ECU will now be checking the right O2 sensor. Run the engine at 2000rpms for 2 minutes while watching the “Check Engine” light.
How to avoid the EGR check engine light?
Since it’s annoying to have to avoid these conditions, an easy fix is to install a resistor in the wiring harness for the EGR valve temperature sensor. When you delete the EGR, you disconnect the temperature sensor from the harness.
Where is the EGR temp sensor on a firewall?
Your EGR temp sensor is the connector that goes to the EGR valve. The EGR valve is located on the rear of the plenum and looks like a flying saucer I suppose. Follow the wire from that and it will end up at the firewall plugged into a harness. It has 2 pins. You connect the resistor to the harness on the firewall that the EGR was connected to.
How to turn the potentiometer on a Nissan 300ZX?
Using a paperclip, or small wire, jump the connection between pins 8 and 9 on the Consult connector, as shown below: c. Hold the jump for three seconds, then remove the jump. This is essentially the same as turning the potentiometer on the ECU.