Finally have a starting and running motor and have been playing with the tune.
One of the things that occasionally pops its head up is that when I turn the key off, the ecu and motor continue to run for maybe a second or two. This strange issue has been there since I first got the motor running 6 months ago and it still remains an intermittent thing through changes to the firmware, tunes, temperatures and even the amount of time/miles the motor has been running. Everything else turns off like radio and heater fan so I'm a bit lost.
It doesn't appear to cause any other issues but it is one I'd like to address. Anyone experienced similar or have a suggestion of what might cause it???
ECU remains on intermittently
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ECU remains on intermittently
1UZ-FE Volvo 282
CoP Sequential MS3x
CoP Sequential MS3x
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Re: ECU remains on intermittently
Possibly a backfeed from the alternator charge wire? Try temporarily disconnecting the wire to the dash alternator light and see if it continues.
On some installs I have needed to install a 1N4001 diode with banded end towards alternator in that wire. Some BMWs install it in their factory wiring.
James
On some installs I have needed to install a 1N4001 diode with banded end towards alternator in that wire. Some BMWs install it in their factory wiring.
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
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My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re: ECU remains on intermittently
do you happen to have one of the iac outputs running a relay?
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Re: ECU remains on intermittently
Thanks for replys.
Feed back from alternator is something I can look at. Wouldn't this be a problem all the time?
As for the IAC, the MS3 wires are direct.
Feed back from alternator is something I can look at. Wouldn't this be a problem all the time?
As for the IAC, the MS3 wires are direct.
1UZ-FE Volvo 282
CoP Sequential MS3x
CoP Sequential MS3x