Can a Nissan 240SX be run without MegaSquirt?
The valve Nissan refers to as the “Air Regulator” will open on its own, so you do not need to set up any sort of idle control with Megasquirt. However, there’s two other fast idle valves on there. One is an on/off valve that opens when the air conditioning is on, which also could be run without the MS. Nissan calls this the FICD valve.
What should the spark settings be on a Nissan 240SX?
On the ‘Spark’ menu choose ‘Spark Settings’ and set ‘Spark Output Inverted’ to NO when driving the stock power transistor. It is critical to get the Spark Output Inverted setting correct, as setting this wrong can result in damage to the power transistor. Dwell settings will depend on the coil used.
What kind of fuel pump does a Nissan 240SX use?
The 240SX used a thermal type fast idle valve that just needs to be supplied with 12 volt power when the engine is turned on; the fuel pump relay can drive this (and does in Nissan’s factory wiring arrangement).
Can a Nissan 240SX work without a power transistor?
The Megasquirt doesn’t need this connection, and the car should work without this just fine. On the ‘Spark’ menu choose ‘Spark Settings’ and set ‘Spark Output Inverted’ to NO when driving the stock power transistor. It is critical to get the Spark Output Inverted setting correct, as setting this wrong can result in damage to the power transistor.
What kind of jumper do I need for Nissan 240SX?
Solder a 1K resistor between S12 and TachSelect (for a V3.0 board) or pin 3 of the JP1 jumper (for a V3.57 board). It’s best to wrap this resistor in heat shrink tubing and put it on the underside of the board. To use the stock ignition module, you just need a jumper from JS10 to IGN (on a V3.0 board) or the center hole of Q16 (for a V3.57 board).
Can a mspnp be installed on a Nissan 240SX?
Try the MSPNP option, currently available for S13 and S14 applications . This ECU comes fully assembled and ready to plug into the stock wiring. See this link for how to install a MSPNP in a 240SX.