Silvia sr20 1994 Posted July 29, 2012 Report Share Posted July 29, 2012 Vipec goes offline when cranking the engine? Quote Link to comment Share on other sites More sharing options...
Simon Posted July 30, 2012 Report Share Posted July 30, 2012 This could be the ECU is dropping out due to low voltage. Or it could also be a coms issue. Does the engine run? Quote Link to comment Share on other sites More sharing options...
Silvia sr20 1994 Posted July 30, 2012 Author Report Share Posted July 30, 2012 thanks, the engine is not running, its backfires when i try starting it.. not possible to check the ignition when its go offline. ill try a new battery and install the software on another computer. Quote Link to comment Share on other sites More sharing options...
bsh Posted July 30, 2012 Report Share Posted July 30, 2012 If you have sparkplugs without "R", try replacing them with some that have. Quote Link to comment Share on other sites More sharing options...
vica153 Posted July 30, 2012 Report Share Posted July 30, 2012 Is the ECU getting power when cranking? Depending on how things are wired up, some harnesses cut power to accessories (radio/headlights) when cranking. If you're powering the ECU off one of those accessory powers, then that would explain the power loss. Quote Link to comment Share on other sites More sharing options...
gti1434501145 Posted July 31, 2012 Report Share Posted July 31, 2012 Try to see if the spark plugs are still firing when the dropout happens. Quote Link to comment Share on other sites More sharing options...
Silvia sr20 1994 Posted August 6, 2012 Author Report Share Posted August 6, 2012 hello, thanks for answers. it is R sparkplugs, and i use the original harness since it is a plugin., does the harness cut power to the original ECU? will check if the spark plugs is still firing if it goes offline now. Frode Quote Link to comment Share on other sites More sharing options...
Silvia sr20 1994 Posted August 7, 2012 Author Report Share Posted August 7, 2012 I just tried to crank the engine again, now with a strong optima batt. The com goes offline just when i start cranking, butt comes online again after 2 sekunds during cranking,,the sparkplugs is also firing the 2 sekunds its goes offline. Frode Quote Link to comment Share on other sites More sharing options...
Silvia sr20 1994 Posted August 13, 2012 Author Report Share Posted August 13, 2012 i installed the vipec software on another computer, im getting this warning that the usb drivers may not work properly, and ask me if i want to install anyway., when i click yes i get the message it was installed sucsessfully? Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted August 13, 2012 Report Share Posted August 13, 2012 What operating system are you using on your computer, is it Windows 7 Quote Link to comment Share on other sites More sharing options...
Silvia sr20 1994 Posted August 13, 2012 Author Report Share Posted August 13, 2012 i used the xp proffesional on the first pc and now i installed the software on a com with vista home premium. Quote Link to comment Share on other sites More sharing options...
Silvia sr20 1994 Posted August 13, 2012 Author Report Share Posted August 13, 2012 Checked the voltage thats goes in to the ecu when crancking today, its not under 11volts"., the powersuply is ok i think. Quote Link to comment Share on other sites More sharing options...
Silvia sr20 1994 Posted August 27, 2012 Author Report Share Posted August 27, 2012 Engine is running. Quote Link to comment Share on other sites More sharing options...
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