By: BigTDogg (MA) Composed by: 300ZXttZMAN Below is a highly detailed color coded ecu pin out for the Z32’s produced between 1990-95. Special thanks to Tony for taking the time to make that for everyone to use.
1985-1988 Nissan Common OBD-I Codes
-Verify that diagnostic mode selector is turned fully counterclockwise. -Turn ignition switch ON. -Make sure inspection lamps stay on. (Bulb check.) -Ture diagnostic mode selector fully clockwise. -Make sure inspection lamps display code 23 and 31. -Depress accelerator pedal and release. -Make sure inspection lamps display code 31. -Start engine, apply brakes and shift into […]
1989-1994 Nissan Common OBD-I codes
-Access the ECU and position it for observing the diodes. -If the engine does not run, turn the key on and proceed to step #4. -Start the engine and warm it to operating temperature then idle. -Turn the diagnostic mode selector on the ECU fully clockwise until both diodes flash 3 times then turn the […]
Z32: ECU Diagnostic/O2 Sensor Test
This write-up explains how to check the codes of the ECU in a ’90-’95 300ZX. You guys with the ’96 300ZX have the OBDII system. Tools Needed: – 10mm socket or Phillips screwdriver – Flathead screwdriver Procedure 1. Pull back the floor mat. 2. Pull back the carpet. It is held down with three Velcro […]
350Z and G35 ECU reset procedure
How to reset your ECU and perform the Throttle Pedal Release and Idle Air Volume Learning procedures on an Infiniti G35 and the Nissan 350Z. Before attempting any of the following procedures, it is advisable that you read through the instructions thoroughly and familiarize yourself with them. A stop watch or an analog clock with […]
Technical Articles: G35- How to:Reset ECU, Throttle Pedal Release & Idle Air Volume Learning
How to reset your ECU and perform the Throttle Pedal Release and Idle Air Volume Learning procedures on an Infiniti G35 and the Nissan 350Z. Before attempting any of the following procedures, it is advisable that you read through the instructions thoroughly and familiarize yourself with them. A stop watch or an analog clock with […]
Altima Manually Pull and Read Check Engine Light Codes CEL/SES
This article shows you how to read/pull the fault codes, usually accompanied by a Check Engine Light or Service Engine Soon, on your Altima with push button start. You do not need an OBDII code reader or any other special tools to do this. To take a reading without using an OBD II reader, you […]
Infiniti ECU Codes
Without OBD II On G20 models, the ECU is located behind the center console. On J30, M30 and Q45 models, the ECU is located behind the RH kick panel. If a malfunction occurs within the ECU/fuel injection system, a diagnostic trouble code may be stored in the ECU and the ‘‘Check Engine’’ lamp will blink. […]
4th-Gen Maxima Knock Sensor Testing
Testing the Knock Sensor (KS): – The KS MUST be checked with a digital ohmmeter. Analog ohmmeters may cause damage to vehicle. 1) Raise the hood. View the engine from the driver’s fender. Look into the deep valley between the cylinder banks and below the intake manifold. Identify the KS as a black item fastened […]
5th/6th-Gen Maxima – How to Reset ECU
How to reset ECU in 5th and 6th Generation Maxima’s 1. Turn ignition switch on and wait about 3 seconds. Repeat the following steps (2a and 2b) procedures quickly five times within 5 seconds. 2a. Fully depress the accelerator pedal (HARD).2b. Fully release the accelerator pedal. 3. Wait 7 seconds, fully depress the accelerator pedal […]