EJ20G Basics
Moderators: jsmcortina, muythaibxr
EJ20G Basics
Hello all,
I currently have a 2000 2.5rs which I have swapped in an EJ20G Version 2 motor. I have the motor, engine harness, and intercooler as well as all of the stock 2.5rs parts (if needed). I would like to use Microsquirt to run the motor. Ultimately, I am going with Microsquirt to have tune-ability and avoid spending $1,200 on a rare EJ20G bulkhead harness. I am a novice, but a quick learner. I have received the list of necessary parts below. I will continue to do my research, but any help is greatly appreciated!!
A few quick questions:
1) I have all of the ignition setup that comes mounted on the motor. I believe that this motor uses a COP setup with an ignitor mounted in the engine bay....I do not have said ignitor. Is it best to convert to a newer WRX coil setup or track down an ignitor?
2) Will I need to purchase new sensors or can I use the stock Subaru sensor for the IAT and CLTIAT(with the exception on the MAP sensor and wideband)
The List
$339.00 MicroSqrt3: Assembled ECU (includes short harness & tuning cable)
$64.00 GM3bar-map: MAP sensor
$11.50 GM3bar_piggy: Pigtail connector for MAP sensor
$17.75 CLTIATwPiggy: Coolant / Oil temperature sensor
$22.25 IATwPiggy: Intake Air Temperature Sensor
$9.00 38NPT-Bung_A: Aluminum bung for IAT sensor (Also available in stainless steel)
I currently have a 2000 2.5rs which I have swapped in an EJ20G Version 2 motor. I have the motor, engine harness, and intercooler as well as all of the stock 2.5rs parts (if needed). I would like to use Microsquirt to run the motor. Ultimately, I am going with Microsquirt to have tune-ability and avoid spending $1,200 on a rare EJ20G bulkhead harness. I am a novice, but a quick learner. I have received the list of necessary parts below. I will continue to do my research, but any help is greatly appreciated!!
A few quick questions:
1) I have all of the ignition setup that comes mounted on the motor. I believe that this motor uses a COP setup with an ignitor mounted in the engine bay....I do not have said ignitor. Is it best to convert to a newer WRX coil setup or track down an ignitor?
2) Will I need to purchase new sensors or can I use the stock Subaru sensor for the IAT and CLTIAT(with the exception on the MAP sensor and wideband)
The List
$339.00 MicroSqrt3: Assembled ECU (includes short harness & tuning cable)
$64.00 GM3bar-map: MAP sensor
$11.50 GM3bar_piggy: Pigtail connector for MAP sensor
$17.75 CLTIATwPiggy: Coolant / Oil temperature sensor
$22.25 IATwPiggy: Intake Air Temperature Sensor
$9.00 38NPT-Bung_A: Aluminum bung for IAT sensor (Also available in stainless steel)
Re: EJ20G Basics
you can use the stock clt and iat if you can find out the calibration data for them, or you can measure this with a ohm meter and a thermometer.
the microsquirt can only control logic level coils so you would need an external igniter or a smart coil that takes a 5v signal to fire it.
the microsquirt can only control logic level coils so you would need an external igniter or a smart coil that takes a 5v signal to fire it.
1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????
Re: EJ20G Basics
Great and what will control my oil pressure sending unit? I apologize if these are basuc questions.
Re: EJ20G Basics
MS does not need oil pressure info.
Or are you talking VVT?
Or are you talking VVT?
Correctly identify your MS ecu here
Read the Do's and Don'ts to avoid the common pitfalls before starting your install or asking for help
Use only these manuals other manuals may cause brain damage or worse.
Read the Do's and Don'ts to avoid the common pitfalls before starting your install or asking for help
Use only these manuals other manuals may cause brain damage or worse.
Re: EJ20G Basics
The Ej20G has an oil pressure sending unit, but because the megasquirt doesn't need it I dont have to worry about that correct?
Re: EJ20G Basics
Not for the MS. You probably should have something for the driver
Correctly identify your MS ecu here
Read the Do's and Don'ts to avoid the common pitfalls before starting your install or asking for help
Use only these manuals other manuals may cause brain damage or worse.
Read the Do's and Don'ts to avoid the common pitfalls before starting your install or asking for help
Use only these manuals other manuals may cause brain damage or worse.
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- MS/Extra Newbie
- Posts: 1
- Joined: Fri Jun 23, 2017 9:29 pm
Re: EJ20G Basics
First time poster. Joined to look for more reasons that I should go microsquirt on my ej20k.
How are you doing on this?
How are you doing on this?