View Full Version : no communication through obd1 diagnostic port (datalogger AND lcdboostcontroller)
Hard AttacK
04-13-2012, 04:42 AM
Hopefully someone here can help. 20$ paypal to who ever helps figure this out! An ECU swap is my last resort.
No obd1 port communication lcdboostcontroller - 3000GT/Stealth International Message Center (http://www.3si.org/forum/f1/no-obd1-port-communication-lcdboostcontroller-535080/)
Hard AttacK
04-13-2012, 12:39 PM
randomly worked for 5 seconds today on my datalogger
BlackStealth
04-14-2012, 07:59 PM
Two possibilities comes to mind:
(1) Disconnect your ECU, and verify the wire coming from your ECU to the OBD1 ports are good (using the multimeter resistance settings). There are two wires you need to check for OBD1 communication.
(2) Next, you should investigate the ground wire near the ECU on the passenger side, you'll have to lift up the passenger side carpet to see the ground connection attached to the body.
Hard AttacK
04-15-2012, 04:40 AM
http://i221.photobucket.com/albums/dd233/D_Wr3cK/ResizedImage_1334393010566.jpg
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