If this connection remains then the Fuel Temp signal will be incorrect and FICD will not function.
#300zx ecu diagnostics series
* Series 2 R33 s have the FICD wired to this pin. This input can be simulated by fitting a 2 K resistor between pin 36 and GND (pin 30) which will give a reading of around 25 degrees fuel temp (other values can also be used eg: 1K = 40 degrees).
#300zx ecu diagnostics code
A Diagnostic Trouble Code (DTC) will be raised by the Z32 ECU if it senses that the voltage on this pin is out of range. RB25 does not - and the matching pin does not have a wire connected. Double check your work and continuity check all modifications on the ECU connector before using in the vehicle!ħ 6) Fuel Temperature input pin 36 * Z32 uses a fuel temperature sensor. No responsibility taken for information provided. Do not attempt this unless you are proficient in this type of work. Instructions provided involve modifications to the ECU circuit board. We can work out the Nissan part number if you contact us with the JECS part number, or you can connect to the ECU using any consult tool to retrieve the Nissan part number.
However there is a manufacturer (JECS) part number which begins with A18. 3) Note that most USDM Z32 ECU s are not stamped with a Nissan part number. Avoid later model USDM ( ) 16 bit Z32 ECU s (Nissan part numbers Pxx, 53Pxx, 51Pxx). (Nissan part numbers Pxx, 31Pxx, 37Pxx, 40Pxx, 41Pxx, 46Pxx, 47Pxx and 48Pxx).
#300zx ecu diagnostics manual
It does not matter if the ECU is naturally aspirated or turbo, manual or auto. These can be any JDM, EDM or USDM model ECU. R33 Series 2 uses a switch on the TPS so will work the same with the Z32 ECU 2) We recommend Z32 (8 bit) ECU s for this modification. (Section 3 covers the modification for these series engines). This works quite effectively provided TPS is adjusted correctly. In this situation when installing a Z32 ECU, it will use default limp values to determine TPS idle indication. Our experience shows that an RB25DET running the standard 370cc injectors (but with Z32 AFM fitted) will run quite well before any tuning even takes place.Ģ Notes 1) R33 Series 1 RB25 does not use a switch on the Throttle Position Sensor (TPS) to sense closed throttle. This provides a good starting point for tuning. The file is called Z32_transplanted_R33maps_merged.ENT. NIStune has provided a base image which consists of the Z32 base with R33 maps/tables merged. The same outcome may be realised by modifying the wiring harness if you d rather not modify the ECU. This saves re-wiring the R33 harness - which means the standard ECU can easily be re-fitted if required. These are the steps to perform if modifying the Z32 ECU for a direct R33 plug-in. It s recommended to do the resistor modification to correct the Fuel Temp input even for race vehicles (see Section 6). So for best integration into a standard R33 Skyline we ve provided some basic instructions detailing the changes. This is fine for track/race vehicles but there are signals which differ. The Z32 ECU can actually be used to run the RB25 without modification (if Z32 AFM is used). Overview The Z32 ECU is a functional and cost effective way to tune the R33 RB25DET Skyline when fitted with a NIStune board. 1 Nistune Z32 ECU Modifications for R33 RB25DET Skyline Installation Revision 6 14Sep10 Thanks to Eric at DTA Motorsports, Skyline Stu and Andrew H for their help.
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