NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   -   ecu wiring ? (https://www.nopistons.com/2nd-generation-specific-17/ecu-wiring-61973/)

drewrey2004 10-02-2006 04:19 PM

my ecu fuse on my car gets hot and sometimes pops when i have the ignition on the on position. i have the greddy emanage hooked up and working properly and havent done anything else to the wiring except for some gauges. is there anyone with wiring diagnostic experience or can help with a little input. thx.

drewrey2004 10-06-2006 12:38 PM

i guess no one has any wiring exerience on here

j9fd3s 10-06-2006 01:10 PM

if the fuse blows that wire is shorting. there are 2? power wires in the harness



black w yellow



black w white



they are each fused, i forget which is which

drewrey2004 10-07-2006 10:52 AM

well i tested it yesterday and im only getting 6 volts at the white wire. but also what i noticed is that the fuel pump wasnt working either. when i took out the fuse for ecu circuit everything turned on again. could it be maybe the main relay contact for that circuit is bad. and also what i was thinking was rerouting the circuit and putting in a 30 amp fuse next to the ecu.

j9fd3s 10-07-2006 11:59 AM


Originally Posted by drewrey2004' post='839972' date='Oct 7 2006, 08:52 AM

well i tested it yesterday and im only getting 6 volts at the white wire. but also what i noticed is that the fuel pump wasnt working either. when i took out the fuse for ecu circuit everything turned on again. could it be maybe the main relay contact for that circuit is bad. and also what i was thinking was rerouting the circuit and putting in a 30 amp fuse next to the ecu.



main relay might be bad, or intermittant, its happened before

teknics 10-07-2006 04:32 PM

im with him on that shite ^



kevin,.

drewrey2004 10-07-2006 11:35 PM

by intermittent wat do u mean? and i figured the relay might be bad i just rerouted the ecu circuit with a 30 amp fuse everything seems to be working ok.

j9fd3s 10-09-2006 11:04 AM


Originally Posted by drewrey2004' post='840050' date='Oct 7 2006, 09:35 PM

by intermittent wat do u mean? and i figured the relay might be bad i just rerouted the ecu circuit with a 30 amp fuse everything seems to be working ok.



intermittent



adjective



Happening or appearing now and then: fitful, occasional, periodic, periodical, sporadic. Informal on-again, off-again. See continue/stop/pause.

drewrey2004 10-09-2006 11:27 AM

thanx guys for the help got the ecu to work now

drewrey2004 10-09-2006 11:29 AM

one more thing i dont think my injectors are pulsing. when i crank the car or try a rolling start im not gettin anything from the fuel system. i tht maybe my computer was bad but the ignition is working.


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