I have an issue with the cars tune which looks like it has been done around a vac leak from the PRC solenoid.
So my initial question here is: Is it possible to get the current map from the ECU, save it and make tweaks to a copy of it on a laptop?
Its an FM Link ECU on a 94 car. I have the serial link box and keypad, and have connected to the Link with datalog lab with said laptop.
I've read Plink can do this a couple of times, but that is for a Palm PC.. which I dont have, and cant seem to find if/how I could run that software on the laptop either
Making changes with the keypad seems a little risky as I cant revert should I make matters worse. And well, its not that easy to use is it
Background info on the Vac leak if you want to read the full story..
The VAC leak - Pre re-plumbing the routing was (IM - T fitting, one side to MAP, the other to the PRC solenoid - Open end. Then a seperate line IM - FPR) The open end, drawing a vacuum on idle isnt right, right? Yet a datalog revealed AFR and Target AFR were very near inline with each other.
If I re-plumb the vac lines as per the FM Manual, blocking the VAC leak (IM - T fitting, one to MAP, then other to the PRC solenoid - FPR) and do a small datalog with datalog lab the AFR at idle is way higher than the Target AFR.
Ideas very welcome