Yup it clicked eventually
I spent a few evenings going through pin outs on both ecu’s and tried working through how I’m going to mod the loom. Then populated the me442 connector
so this morning I started on soldering it all in. Slightly daunting but 1 wire at a time is the way to go.
I had a quick chat on FB with Mat at ME about a couple of things I wasn’t quite sure of. Really amazed at how helpful ME are with their after sales service. One being how to wire up the 5v ref for the sensors when they are split between 2 ecu’s. I’ve decided to keep the dash and want all the gauges to continue to work. It turns out to be super simple, I’ll be using the standard ecu to power the 5v ref then the me442 will receive the sensor data and control everything from there on.
I only made a couple of mistakes along the way so far, well ones I’ve realised so far anyway.
I done the good old solder the wires together then realised I forgot to put the heat shrink on haha.
The main one was thinking I was cutting out one of the injector wires that was going straight to me442. When actually it was a 12v switched supply that I was supposed to splice.
I cut it off right at the plug haha. Still after scratching my head for a bit I thought my way out of the situation. I took the connector apart at popped out the pin I cut to short then took one out from a location that I’m no longer going to use then cut it to a sensible length and replaced it.
Yeah the pin from the ecu isn’t the colour any more but it’s easy to figure out and it gets me out of a situation.
other than the above it went pretty much all to plan. I still have to cut a couple of unused wires from the standard ecu that I’ll use to pull through new wires for the extra sensors/solenoids. Then tidy it all up.
also during the week I found a little map sensor in the shed I purchased a while ago for my old twincharger project. It should be more than adequate as it’s a 4bar absolute sensor, should be able to handle 3bar/43.5psi +. Not that I’m going to run that sort of boost but it’s always handy to have plenty of headroom and it’s just sitting there gathering dust so I might as well put it to some use.
