7mgte no spark - Toyota Supra Forums

02-21-2010, 06:41 AM	#15
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The fuel pump relay is the most likely suspect for the buzzing. The CEL when the ignition is off is puzzling as the ECU has no power source at that point, but I suppose if the fuel pump relay is getting power from somewhere that would be the same source that's powering the ECU. Do either of you have the FP contact in the diagnostic box jumpered to anything? __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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