sanasebo.blogg.se - Best car for megatune

#BEST CAR FOR MEGATUNE UPGRADE#
#BEST CAR FOR MEGATUNE FULL#
#BEST CAR FOR MEGATUNE MODS#
#BEST CAR FOR MEGATUNE SOFTWARE#

The coil pack used, was a Vauxhall Vectra/Omega V6.

#BEST CAR FOR MEGATUNE SOFTWARE#

You can use "EasyTherm" software to do this. It has different properties to that of the default megasquirt settings, so they will need to be changed. The standard blue temperature sensor already fitted to the engine (Bosch NTC M12) will work. Use a multimeter or continuity tester to find the correct pin used on the Air Flow Meter connector, then connect it to the IAT sensor. Push the IAT into the bellows, where the Idle Control Valve used to sit.

#BEST CAR FOR MEGATUNE FULL#

Remember to set the lower, and upper throttle ranges into Megasquirt, so it knows when your foot is off and full on the peddle. An e36 m/s 50 series TPS will work, however it will need simple custom bracketry as it does not bolt right up. I made up a new connector, which plugs into the original TPS socket. I found a Bosch TPS (0280120406) which bolted stright on.

The standard E30 TPS is of no use, as all this provides is a simple on-off-on state. Tip: Also connect an LED (with resistor) as an indicator to the fuel pump output - it will help with diagnostics, should you run into difficulties. To cure this, I added an inline diode to each of the three relays inputs. In doing so I found that a strange chattering noise came from the relays when I switched off the ignition. The simplest way to do this is connect the DME & O2 relays to megasquirts fuel pump output. The DME relay, and O2 relay (if used) need to be powered when the Engine/ECU is running. O2 Oxygen sensor signal (O2 ground is pin 10)ĭME Relay - connect fuel pump relay output, with am inline diode. Oxy Heater relay - connect fuel pump relay output, with am inline diode. The Megasquirt box can be bolted on top of the Motronic case, or if your building MS in kit form, it's possible to put the MS circuit board into the old Motronic box. Additional wiring will be needed for the coil outputs. In this guide, we do the latter, by gutting an old Motronic ECU box, and reusing the connector. Wiring Megasquirt to the car, can either be done by connecting every component directly (sensors, injectors, coil etc.), or reusing as much of the existing wiring as possible. For details on wiring the additional coil drivers, see See the main Megasquirt site for suppliers and constructional details. Either way, you need to order it with two additional spark outputs. Megasquirt can be purchased in kit form or ready built. Megastim (optional - get it anyway, you can always sell it).Coil Pack (Vauxhall/Opel Vectra/Omega V6 or Bosch 0221503002).Megasquirt connector & short Wiring loom.Megasquirt I or II (I used "Megasquirt-extra I" for this writeup).

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Extendability (platform for future mods - turbo/supercharging etc.).

Relatively cheap modification for benefits gained.

Solid state ignition (no dizzy cap/rotor).

For the price of a new BMW distributor cap and rotor arm, Wasted spark can be added to the Megasquirt system, boosting performance (a stronger spark) and reliability (no contacts to wear out). Megasquirt also opens the door to using an alternative ignition system, such as Wasted Spark. Megasquirt takes this a step further, and uses a MAP Sensor instead, removing the need for any air measurement. It relies on an Air Flow Meter for air intake measurement, which is more restrictive to air flow than a more modern MAF sensor. The Motronic ECU fitted to BMWs in the late 80's whilst reliable, is somewhat outdated now. Other models may very, particularly those models that use the pre-88 Jetronic system, which will require additional work. The model used in this guide, is a UK spec 1989 325i.

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This is a guide to upgrade the Motronic ECU fitted to BMW's 3-Series (1988 to 1991) using the after market ECU Megasquirt, and a Coil Pack for Wasted Spark. NOTE: An updated version of this document can be found here