JLT Automotive Posted June 18, 2019 Report Share Posted June 18, 2019 Unable to connect to ECU with Laptop. ECU is a Vipec IPN35 Plug for 350Z 2004 Latest software has been download after being uninstalled and downloaded Com port has been confirmed, Error Msg " Unable to connect to ECU but USB connection is present. Cycle the power to ECU " ECU was connected to few weeks back when at the tuners however now unable to connect. ECU has two Ports - One is a cable coming from inside ECU the other is the port the Racepak Dash was plugged into - this has been disconnected just incase that is also a issue, Any help would be appreciated. Quote Link to comment Share on other sites More sharing options...
Richard Hill Posted June 18, 2019 Report Share Posted June 18, 2019 What os are you using ? If it's windows 7 then you will need to install version 5.6.5 first and then 5.6.6 , there is an issue with the latest usb driver and windows 7. HTH Richard. Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 18, 2019 Report Share Posted June 18, 2019 The USB port for the laptop would normally be the one fitted in the top of the case with the red o-ring as pictured below - unless someone has messed around inside. I would expect the extra one that you say is "coming from inside" is probably the dash connection. Quote Link to comment Share on other sites More sharing options...
1320MINI Posted June 19, 2019 Report Share Posted June 19, 2019 I had a similar issue a while back and i think the USB drivers on the latest PC were not right. I loaded a older version and connected straight away. Quote Link to comment Share on other sites More sharing options...
JLT Automotive Posted July 1, 2019 Author Report Share Posted July 1, 2019 Hi Guys, Thanks for the Great info i was able to Reload a New Version and the ECU not connects every Time. Quote Link to comment Share on other sites More sharing options...
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