Subject	The first thing to do is make sure the fuel pump...
Posted by	DVDBURN (MD) on February 24, 2015 at 1:23 PM
	This message has been viewed 228 times.
In Reply To	fuel pump posted by TJSB on February 23, 2015 at 06:30 PM
Message	controller is bolted to the car body and has a good ground. Without that it won't work. The fuel pump is controlled via a ground signal. It always has B+. The only way it can get its negative voltage is if the chassis of the FPC is grounded. It looks like the fuel pump is being sent a positive voltage from the FPC but that's only because the positive voltage to the FPC is on the same line as the voltage going to the FPC, not coming from it. The negative side of the voltage is what comes from the FPC and is controlled by it. www.mytwinturbo.com Nissan Data Voice - The first Nissan diagnostic software with a voice! Nissan Data Voice on YouTube Download my Nissan 300ZX Vin/Model Lookup.
Follow Ups	fuel pump - TJSB 18:30:57 02/23/15 Use a multimeter - -Grimm- 11:28:10 02/24/15 The first thing to do is make sure the fuel pump... - DVDBURN (MD) 13:23:13 02/24/15 You sure it needs bolted in to be grounded? - Woody75 (Denver) 09:35:29 02/25/15 Yes. Absolutely without a doubt. (n/m) - DVDBURN (MD) 11:00:51 02/26/15 Also... - DVDBURN (MD) 11:10:02 02/26/15 I've drove with them not being bolted down. No issues. - Woody75 (Denver) 15:14:42 02/26/15 You only thought there were no issues. - DVDBURN (MD) 19:51:37 02/26/15 I should also mention that ... - DVDBURN (MD) 08:55:44 02/27/15
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