Wire tuck/Intermittent Electrical/Main relay

xero_xero · 01-06-2013, 04:54 PM

I will go through and add pictures for this, and it may take some more experianced electrical gurus.

1995 Honda Civic Cx

Fresh wire tuck, nothing was cut other than grounds in the engine bay on the white 8 plug ground terminals.

On the main relay, i get no power to the fuel pump to prime.
the t stat housing ground is connected.

relay unplugged
i have continuity to the fuel relay ground.
Green/Yellow no power to the pump
Yellow/White 12v battery supply is there
Yellow/Black (ecu power) 11.4v
yellow/Green -.51v (black to ground)
Black/yellow 11.4v (II)
Blue/White Ignition Switch -.51v (I) and 8v(II)

Ignition Switch
White 12vconstant
black white starter 12v start
black yelow 12v run start
white black 12v run
yellow I and II

grumblemarc · 01-06-2013, 05:01 PM

How were the grounds reconnected? Soldered and shrink wrapped?

xero_xero · 01-07-2013, 12:41 AM

The grounds themselves were ran through thefender. Ends were cut off and attached to butt style ring connectors.

xero_xero · 01-08-2013, 03:37 AM

Checked all grounds for contunuity to the frame. All xhecked good. Next going to check every power and ground to the ecu

d15bvtechatch · 01-08-2013, 04:57 AM

is it a fuel pump prime delay? if so, it could be capacitor 14 in your ecu, this is a common issue
http://www.hondata.com/tech_capacitor_obd1.html

http://honda-tech.com/showthread.php?t=1159611

xero_xero · 01-08-2013, 07:35 AM

Both relay anf ecu tested in my teg. Tested fine.

EsotericImage · 01-08-2013, 07:55 AM

Its issues like this that make me rethink attempting to do a tuck

RonJ@HT · 01-08-2013, 09:21 AM

Quote:

Originally Posted by xero_xero

relay unplugged...
Green/Yellow no power to the pump

The Grn/Yel wire cannot get voltage if the relay is unplugged. Redo the voltage test at the fuel pump with the relay plugged in. Use the fuel pump connector Blk wire as ground and compare the voltage reading when using the chassis as ground.

xero_xero · 01-10-2013, 03:50 AM

Ok.
Looking for the service tech manual at the moment.
Does anyone have any pdf that are not scans?

RonJ@HT · 01-10-2013, 06:23 AM

Quote:

Originally Posted by xero_xero

Looking for the service tech manual at the moment.

Should be easy to find with a Google search.

xero_xero · 01-11-2013, 02:47 PM

just rechecked everything. have continuity to the ecu grounds and chassis.
i get 9.5v from the blu/whi on start only, not run.
0v to fuel pump chassis ground and fuel pump ground
i checked the jumper harness that i made to do the wire tuck, and every terminal end matches.
and the next step is to undo the engine hanress and plug it strait.

ill post up pics in about 15.

xero_xero · 01-21-2013, 03:33 PM

neglected ground.

after hours of tearing apart everything, i checked voltage at the chassis and on the physical grounds.

broken ground wire off of the curent car i am driving.

on harness, nearly impossible to find. pulled 5 volts when 12 was there.

01-06-2013, 04:54 PM	#1
xero_xero Honda-Tech Member 1995 Honda Civic My Garage Join Date: Oct 2009 Location: Griffin Ga Posts: 1,386 iTrader Rating: (0)	Wire tuck/Intermittent Electrical/Main relay I will go through and add pictures for this, and it may take some more experianced electrical gurus. 1995 Honda Civic Cx Fresh wire tuck, nothing was cut other than grounds in the engine bay on the white 8 plug ground terminals. On the main relay, i get no power to the fuel pump to prime. the t stat housing ground is connected. relay unplugged i have continuity to the fuel relay ground. Green/Yellow no power to the pump Yellow/White 12v battery supply is there Yellow/Black (ecu power) 11.4v yellow/Green -.51v (black to ground) Black/yellow 11.4v (II) Blue/White Ignition Switch -.51v (I) and 8v(II) Ignition Switch White 12vconstant black white starter 12v start black yelow 12v run start white black 12v run yellow I and II __________________ Cnc machinist - Atlanta Ga - 6785683113 Race Proven Engineering - B and D series Adjustable shifter and **** GIVEAWAY!

01-06-2013, 05:01 PM	#2
grumblemarc The Grumpiest 1996 Honda Civic Join Date: May 2008 Location: Oak Ridge, TN, USA Posts: 23,348 iTrader Rating: (3)	Re: Wiretuck/Intermitten Electrical/Main relay How were the grounds reconnected? Soldered and shrink wrapped? __________________ FAQs!--How to Turbocharge your Civic--Want a faster Civic?--Building your dream car 101 Don't use the words "Help!" or "Best" in your threads titles. It shows everyone that you don't have a clue and that you are extremely lazy.

01-07-2013, 12:41 AM	#3
xero_xero Honda-Tech Member 1995 Honda Civic My Garage Join Date: Oct 2009 Location: Griffin Ga Posts: 1,386 iTrader Rating: (0)	Re: Wiretuck/Intermitten Electrical/Main relay The grounds themselves were ran through thefender. Ends were cut off and attached to butt style ring connectors. __________________ Cnc machinist - Atlanta Ga - 6785683113 Race Proven Engineering - B and D series Adjustable shifter and **** GIVEAWAY!

01-08-2013, 03:37 AM	#4
xero_xero Honda-Tech Member 1995 Honda Civic My Garage Join Date: Oct 2009 Location: Griffin Ga Posts: 1,386 iTrader Rating: (0)	Re: Wiretuck/Intermitten Electrical/Main relay Checked all grounds for contunuity to the frame. All xhecked good. Next going to check every power and ground to the ecu __________________ Cnc machinist - Atlanta Ga - 6785683113 Race Proven Engineering - B and D series Adjustable shifter and **** GIVEAWAY!

01-08-2013, 04:57 AM	#5
d15bvtechatch Honda-Tech Member Garage is empty, add now Join Date: Jul 2004 Location: Panhandle, FL Posts: 257 iTrader Rating: (1)	Re: Wiretuck/Intermitten Electrical/Main relay is it a fuel pump prime delay? if so, it could be capacitor 14 in your ecu, this is a common issue http://www.hondata.com/tech_capacitor_obd1.html http://honda-tech.com/showthread.php?t=1159611 __________________ -1998 GPW EK9 - http://honda-tech.com/showthread.php?t=3015021

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01-08-2013, 07:35 AM	#6
xero_xero Honda-Tech Member 1995 Honda Civic My Garage Join Date: Oct 2009 Location: Griffin Ga Posts: 1,386 iTrader Rating: (0)	Re: Wiretuck/Intermitten Electrical/Main relay Both relay anf ecu tested in my teg. Tested fine. __________________ Cnc machinist - Atlanta Ga - 6785683113 Race Proven Engineering - B and D series Adjustable shifter and **** GIVEAWAY!

01-10-2013, 03:50 AM	#9
xero_xero Honda-Tech Member 1995 Honda Civic My Garage Join Date: Oct 2009 Location: Griffin Ga Posts: 1,386 iTrader Rating: (0)	Re: Wiretuck/Intermitten Electrical/Main relay Ok. Looking for the service tech manual at the moment. Does anyone have any pdf that are not scans? __________________ Cnc machinist - Atlanta Ga - 6785683113 Race Proven Engineering - B and D series Adjustable shifter and **** GIVEAWAY!

01-11-2013, 02:47 PM	#11
xero_xero Honda-Tech Member 1995 Honda Civic My Garage Join Date: Oct 2009 Location: Griffin Ga Posts: 1,386 iTrader Rating: (0)	Re: Wire tuck/Intermittent Electrical/Main relay just rechecked everything. have continuity to the ecu grounds and chassis. i get 9.5v from the blu/whi on start only, not run. 0v to fuel pump chassis ground and fuel pump ground i checked the jumper harness that i made to do the wire tuck, and every terminal end matches. and the next step is to undo the engine hanress and plug it strait. ill post up pics in about 15. __________________ Cnc machinist - Atlanta Ga - 6785683113 Race Proven Engineering - B and D series Adjustable shifter and **** GIVEAWAY! Last edited by xero_xero; 01-11-2013 at 04:01 PM.

01-21-2013, 03:33 PM	#12
xero_xero Honda-Tech Member 1995 Honda Civic My Garage Join Date: Oct 2009 Location: Griffin Ga Posts: 1,386 iTrader Rating: (0)	Re: Wire tuck/Intermittent Electrical/Main relay neglected ground. after hours of tearing apart everything, i checked voltage at the chassis and on the physical grounds. broken ground wire off of the curent car i am driving. on harness, nearly impossible to find. pulled 5 volts when 12 was there. __________________ Cnc machinist - Atlanta Ga - 6785683113 Race Proven Engineering - B and D series Adjustable shifter and **** GIVEAWAY!

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