no fuel need and electrician

nonturdbo · 02-25-2009, 06:10 PM

ok this is going to be a very complicated thing so just bear with me for a second.
i have an 86 rx7 n/a. right now the fuel pumpis not turning on. the the circuit opening relay is not working. because it is not getting a ground form the brown wire. i jumped it with a ground so that the pump would turn on but the car still does not start. it just floods the engine. now i tested the afm and it seems to be fine from what the shop manual says so now im stuck with a constant ground it floods with it just wired normally it does not even turn on. here is the wire diagrahm for what im talking about
http://www.cochran-racing.com/FSM/s4...NG_DIAGRAM.pdf
the relay im talking about is on page 30 its marked f-08 and the brown wire is not getting a signal what should i check next it is so close to starting and i just want to finally drive it

NoDOHC · 02-28-2009, 11:33 PM

If I understand your problem correctly, the brown wire going to the fuel pump needs to be grounded for the fuel pump to operate. This is the way the system should work. I don't know why the brown wire is not connected, but it should be grounded all the time.

The flooding is a different issue. If you ground the brown wire coming from the fuel pump and then follow the de-flooding procedures found elsewhere on this forum, you should be able to get the engine running. If you can't, I suggest a poor mans conpressions test (listen/feel for even strong pulses out the spark plug hole when cranking).

I don't see any fuel pump relay identified on page 30 of the manual, but I can tell you that the circuit opening relay is just above the brake pedal.

I wish I could be of more help, try the de-flooding and let us know how it goes.

02-25-2009, 06:10 PM	#1
nonturdbo n/a is gay Join Date: Jan 2009 Location: texas Posts: 18 Rep Power: 0	no fuel need and electrician ok this is going to be a very complicated thing so just bear with me for a second. i have an 86 rx7 n/a. right now the fuel pumpis not turning on. the the circuit opening relay is not working. because it is not getting a ground form the brown wire. i jumped it with a ground so that the pump would turn on but the car still does not start. it just floods the engine. now i tested the afm and it seems to be fine from what the shop manual says so now im stuck with a constant ground it floods with it just wired normally it does not even turn on. here is the wire diagrahm for what im talking about http://www.cochran-racing.com/FSM/s4...NG_DIAGRAM.pdf the relay im talking about is on page 30 its marked f-08 and the brown wire is not getting a signal what should i check next it is so close to starting and i just want to finally drive it

02-28-2009, 11:33 PM	#2
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin Posts: 855 Rep Power: 18	If I understand your problem correctly, the brown wire going to the fuel pump needs to be grounded for the fuel pump to operate. This is the way the system should work. I don't know why the brown wire is not connected, but it should be grounded all the time. The flooding is a different issue. If you ground the brown wire coming from the fuel pump and then follow the de-flooding procedures found elsewhere on this forum, you should be able to get the engine running. If you can't, I suggest a poor mans conpressions test (listen/feel for even strong pulses out the spark plug hole when cranking). I don't see any fuel pump relay identified on page 30 of the manual, but I can tell you that the circuit opening relay is just above the brake pedal. I wish I could be of more help, try the de-flooding and let us know how it goes. __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)