Nissan 6303 - Manuals - manualsarea.com

Page 5 - WARNING; Poor header cable connection to the ECU from NIStune board

NIStune Type 1 Hardware Installation Page 5 of 5 WARNING If your ECU pulses the fuel pump, injectors, fuel regulator, flashes LEDs randomly (or they just stay on when they shouldn’t) or your engine does not start then your ECU may not have your board fitted correctly. Testing has shown on early Niss...

Page 6 - TABLE OF CONTENTS

NIStune Type 1 Hardware Installation Page 6 of 6 TABLE OF CONTENTS 1. Removing the ECU......................................................................................................................................... 7 2. Opening the ECU ..........................................................

Page 9 - Resocketing the ECU

NIStune Type 1 Hardware Installation Page 9 of 9 3. Resocketing the ECU A. 1984-1985 Dual Board - Dual ROM ECUs Vehicles: Early Z31 300ZX and E12 Nissan Exa. This is a multiboard ECU with a 1K and 8K ROM chip. The two chips need to be removed and jumpers changed on the board before the NIStune board...

Page 10 - very careful

NIStune Type 1 Hardware Installation Page 10 of 10 To remove the two ROM chips (U3 and U4) desolder from the top side of the ECU. Be very careful with the heat of the desoldering gun because the pads on these ECUs lift very easily. It doesn't take much to break a track on these earlier circuit board...

Page 20 - B. Later Model ECUs

NIStune Type 1 Hardware Installation Page 20 of 20 B. Later Model ECUs Later model ECUs connect directly to the circuit board using through holes provided by Nissan. Locate the header connector through holes and silkscreen and solder directly to this. 1989 Z31 300ZX Connector Wire 1 - ECU throughhol...

Page 25 - Inserting The Board; not

NIStune Type 1 Hardware Installation Page 25 of 25 6. Inserting The Board Push the NIStune board into the machine drilled socket previously installed. Connect the CPU cable to connector X1 and the USB cable to connector X2. Ensure the PGM jumper is not soldered if the board was previously programmed...

Page 27 - Securing The Board

NIStune Type 1 Hardware Installation Page 27 of 27 7. Securing The Board Is is the responsbility of the installer to ensure that an vibration that the ECU is subjected with the installed NIStune board (ie unsurfaced roads, train lines, speed humps, grates etc) will not affect to operation of the veh...

Page 28 - Installing In The Vehicle

NIStune Type 1 Hardware Installation Page 28 of 28 8. Installing In The Vehicle Put the ECU casing back together and reinstall ECU into the metal bracket. The diagnostic indicator now containing the USB-B port should be accessible as seen below. Reinstall ECU into vehicle. You may need to enlargen k...

Page 29 - Upgrading ECU MAF hardware

NIStune Type 1 Hardware Installation Page 29 of 29 9. Upgrading ECU MAF hardware Early model engine control units such as Z31, R31, most HR31 (1985-1988) and VL Turbo use a 2 -7 volt hotwire airflow meter. These air flow meters then have their voltage converted to 0 - 5 volts for the internal microp...

Page 32 - Reading the factory ROM image; Programmer Information

NIStune Type 1 Hardware Installation Page 32 of 32 10. Reading the factory ROM image ECU Type A (1984-1985) These ECUs have two non-standard ROM chips (1K and 8K) which require special adaptors to read them in a standard EPROM programmer. It is recommended you send the ECU to NIStune developments fo...