Hi all, i just been offered a v3 megasquirt ecu that has never been used.... it was brought for a zetec 4 pot but the guy couldnt get it to run??. he says it must have been a 'software'problem??,, how easy would it be to 'reprogram' this to be able to run my rv8???
where can i get it tested..... or should i leave it alone? (its £150 with leads and a old laptop thats suitable this ecu?) Thanks in advance Steve
megasquirt
Moderator: phpBB2 - Administrators
V3 refers to the PCB which is the latest one using discrete components. The processor could be either an MS 1 or MS 2. The MS 1 is a single chip - the MS2 a daughter board which fits the same slot.
To re-program for a different engine you simply load in an MSQ file that's suitable - or you can start from scratch. I'm sure someone here will give you one that would be a decent starting point - if you give the full spec of your engine and ignition and the MS.
Pretty well any PC Win95 or later will run the software. (and Macs - but dunno them) It needs a serial port or a USB to serial adaptor. Many have problems with this adaptor rather than with the MS itself, when they can't establish communication.
It's well worth while getting a Stim. This simulates the ignition tach signal and all the sensors. Using either a battery or a wall wart PS, you can then establish the MS is working properly off the car, and check your computer is talking to it ok, etc.
Most problems are caused by a faulty engine loom. Wrong grounding of sensors, etc. The MS itself is pretty reliable - and easily fixed if the worst happens by anyone with some electronic knowledge. Being a DIY device, it has no special chips etc that you can only get from the vendor - they are all 'stock' devices.
To re-program for a different engine you simply load in an MSQ file that's suitable - or you can start from scratch. I'm sure someone here will give you one that would be a decent starting point - if you give the full spec of your engine and ignition and the MS.
Pretty well any PC Win95 or later will run the software. (and Macs - but dunno them) It needs a serial port or a USB to serial adaptor. Many have problems with this adaptor rather than with the MS itself, when they can't establish communication.
It's well worth while getting a Stim. This simulates the ignition tach signal and all the sensors. Using either a battery or a wall wart PS, you can then establish the MS is working properly off the car, and check your computer is talking to it ok, etc.
Most problems are caused by a faulty engine loom. Wrong grounding of sensors, etc. The MS itself is pretty reliable - and easily fixed if the worst happens by anyone with some electronic knowledge. Being a DIY device, it has no special chips etc that you can only get from the vendor - they are all 'stock' devices.
Dave
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
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bobtail84
- Forum Contributor
- Posts: 175
- Joined: Mon Apr 27, 2009 4:26 pm
- Location: Westcliff-on-Sea. Essex. UK
Re: megasquirt
I would send Phil Ringwood a PM he is daxtojeiro on heremgrv8 wrote:Hi all, i just been offered a v3 megasquirt ecu that has never been used.... it was brought for a zetec 4 pot but the guy couldnt get it to run??. he says it must have been a 'software'problem??,, how easy would it be to 'reprogram' this to be able to run my rv8???
where can i get it tested..... or should i leave it alone? (its £150 with leads and a old laptop thats suitable this ecu?) Thanks in advance Steve
or E-mail him. Have a look here He will put you straight as you will probably need some mods to make it right for your RV8.
Jeff
