Rewiring ENTIRE Engine Harness
06-09-04 | 06:58 PM
#101
Ozone Depleter
Joined: Jul 2002
Posts: 1,610
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From: StL
maybe even get fancy and hook it up to something like a turbo timer, so instead of idling the car for 1min and CAUSING heatsoak, it would run the fans for 1min and actually do something 
Im impressed with the harness man! Uve got a helluva lot more patience and wiring skills than i do
-Zach
Im impressed with the harness man! Uve got a helluva lot more patience and wiring skills than i do
-Zach
06-09-04 | 07:38 PM
#102
Thread Starter
Lawn Ornament
Joined: Apr 2001
Posts: 2,416
Likes: 2
From: St Louis, USA
Originally posted by teamstealth
maybe even get fancy and hook it up to something like a turbo timer, so instead of idling the car for 1min and CAUSING heatsoak, it would run the fans for 1min and actually do something
Im impressed with the harness man! Uve got a helluva lot more patience and wiring skills than i do
-Zach
maybe even get fancy and hook it up to something like a turbo timer, so instead of idling the car for 1min and CAUSING heatsoak, it would run the fans for 1min and actually do something
Im impressed with the harness man! Uve got a helluva lot more patience and wiring skills than i do
-Zach
I lack in the electrical field and wouldn't really know how to go about doing that....
Anyone have any ideas?
Can anyone else confirm that taking off one of the ecu grounds ( There are two that bolt to the engine) will make the fans run?
06-10-04 | 03:37 AM
#103
Ozone Depleter
Joined: Jul 2002
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From: StL
what you would need is some kind of timed circuit, probably using a capacitor....but in your case you would want the circuit to hold OPEN for a certain amount of time, which would be dictated by the amount of electricity the capacitor holds.
So basically, youd need that capacitized (sp?) circuit that is normally open with electricity wired a 12v source when ignition is on and an on/off switch wired AROUND the circuit. That way you can use the on/off switch to dictate when it runs and when it doesnt. And then whenever the switch is in the off position, the only available circuit is the capacitor, so then it would keep the entire circuit off for a given amount of time, running the fans. If the switch is on, then the ground has an alternative path and the fans stay off.....make sense?
Ill draw a diagram later, lol
-Zach
So basically, youd need that capacitized (sp?) circuit that is normally open with electricity wired a 12v source when ignition is on and an on/off switch wired AROUND the circuit. That way you can use the on/off switch to dictate when it runs and when it doesnt. And then whenever the switch is in the off position, the only available circuit is the capacitor, so then it would keep the entire circuit off for a given amount of time, running the fans. If the switch is on, then the ground has an alternative path and the fans stay off.....make sense?
Ill draw a diagram later, lol-Zach
06-10-04 | 11:42 AM
#106
1JZ powered
Joined: Jul 2001
Posts: 4,423
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From: Where there's only two seasons, hot and wet! I love Okinawa
Originally posted by ejmack1
hmmm here is another idea... quick disconnect on the firewall engine bay side so when you are removing the engine you dont have to pull it through the firewall
hmmm here is another idea... quick disconnect on the firewall engine bay side so when you are removing the engine you dont have to pull it through the firewall
06-10-04 | 04:57 PM
#110
Thread Starter
Lawn Ornament
Joined: Apr 2001
Posts: 2,416
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From: St Louis, USA
06-10-04 | 05:23 PM
#111
Full Member
Joined: Jun 2002
Posts: 230
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From: Mesa, Arizona
Was going to take this to a PM but I am sure other people would like to know.
1st. What are your mods
and..
2nd. With knowing your mods, what did you end up keeping for the harness. Emissions compatible?
And again, awesome work. Car looks nice! Love the stance.
1st. What are your mods
and..
2nd. With knowing your mods, what did you end up keeping for the harness. Emissions compatible?
And again, awesome work. Car looks nice! Love the stance.
06-10-04 | 06:13 PM
#112
Thread Starter
Lawn Ornament
Joined: Apr 2001
Posts: 2,416
Likes: 2
From: St Louis, USA
T04S
1680cc secondaries
Greddy Front Mount
KG Rail
And all supporting mods
No AC
No PS
No Airpump
Lets see I ended up keeping
Injectors (4)
Crank Angle Sensors (2)
Water Thermo Switch
Water Termo Sensor
Air Intake Temp
Idle Control Sensor
Throttle Position Sensor
O2 Sensor
Knock Sensor
1680cc secondaries
Greddy Front Mount
KG Rail
And all supporting mods
No AC
No PS
No Airpump
Lets see I ended up keeping
Injectors (4)
Crank Angle Sensors (2)
Water Thermo Switch
Water Termo Sensor
Air Intake Temp
Idle Control Sensor
Throttle Position Sensor
O2 Sensor
Knock Sensor
06-22-04 | 04:32 PM
#113
Thread Starter
Lawn Ornament
Joined: Apr 2001
Posts: 2,416
Likes: 2
From: St Louis, USA
ok, I have no gauges at all, im thinking I forgot a ground on the harness... everything else works fine, and the PFC pickups all the sensors, it just doesn't get to the gauges.
06-23-04 | 01:21 AM
#116
Thread Starter
Lawn Ornament
Joined: Apr 2001
Posts: 2,416
Likes: 2
From: St Louis, USA
Originally posted by scotty305
For your gauges, I would be sure to check silly little things like fuses and stuff before opening the cluster.
PS, engine bay pics please!!!
-s-
For your gauges, I would be sure to check silly little things like fuses and stuff before opening the cluster.
PS, engine bay pics please!!!
-s-
eh they worked fine before hand, my fuel gauge works, but nothing else does... lol
06-23-04 | 07:01 AM
#118
Rotary Freak
Joined: Jan 2002
Posts: 2,360
Likes: 0
From: Overland Park, KS
hmmm no gauges, when i stripped mine down i just messed up one wire that caused my map sensor not to work but got that fixed up. I also forgot all my grounds so my PFC woud snap on for a sec but then go back off, spent more time trouble shooting that then i should of. But like asked already to they light up? Your gas tank one of course runs off a different harness so that explains that one. Does your PFC get any RPM reading or if you havnt turned it on yet what are your VTAs and other sensors saying?
~Luke
~Luke
06-23-04 | 10:33 AM
#119
Thread Starter
Lawn Ornament
Joined: Apr 2001
Posts: 2,416
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From: St Louis, USA
Originally posted by c00lduke
hmmm no gauges, when i stripped mine down i just messed up one wire that caused my map sensor not to work but got that fixed up. I also forgot all my grounds so my PFC woud snap on for a sec but then go back off, spent more time trouble shooting that then i should of. But like asked already to they light up? Your gas tank one of course runs off a different harness so that explains that one. Does your PFC get any RPM reading or if you havnt turned it on yet what are your VTAs and other sensors saying?
~Luke
hmmm no gauges, when i stripped mine down i just messed up one wire that caused my map sensor not to work but got that fixed up. I also forgot all my grounds so my PFC woud snap on for a sec but then go back off, spent more time trouble shooting that then i should of. But like asked already to they light up? Your gas tank one of course runs off a different harness so that explains that one. Does your PFC get any RPM reading or if you havnt turned it on yet what are your VTAs and other sensors saying?
~Luke
06-23-04 | 10:34 AM
#120
Thread Starter
Lawn Ornament
Joined: Apr 2001
Posts: 2,416
Likes: 2
From: St Louis, USA
Originally posted by scotty305
Exactly which gauges aren't working? Speedo? Tach? Do the broken gauges light up, or not? Did you check on those fuses? Both the engine box and the interior box?
-s-
Exactly which gauges aren't working? Speedo? Tach? Do the broken gauges light up, or not? Did you check on those fuses? Both the engine box and the interior box?
-s-
06-23-04 | 02:56 PM
#121
Rotary Freak
Joined: Jan 2002
Posts: 2,360
Likes: 0
From: Overland Park, KS
Also what about your blickers, cruise control light, what if you take a little coolent out, will it set your low coolent buzzer off? I would guess it has someting to due with either grounding like you said or one of the connecters that run to the main harness (Blue and white.) I would imagine those are the ones that send signal to the gauges. Also what if unplug your map sensor will it set off you exhust overheat light? Once you get a few of these things found out that should help trace it.
06-23-04 | 06:04 PM
#122
Thread Starter
Lawn Ornament
Joined: Apr 2001
Posts: 2,416
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From: St Louis, USA
Ok i said the car runs fine, that would mean the map sensor works fine too ...
everything else works except the Tach, Speedo, Oil, and Temp...
It HAS to be a grounding issue, i just need to figure out what ground it is...
The cluster is fine, it has to do with the x-14 or x-5 connector....
...everything else works except the Tach, Speedo, Oil, and Temp...
It HAS to be a grounding issue, i just need to figure out what ground it is...
The cluster is fine, it has to do with the x-14 or x-5 connector....
06-23-04 | 06:05 PM
#123
Thread Starter
Lawn Ornament
Joined: Apr 2001
Posts: 2,416
Likes: 2
From: St Louis, USA
Ok i said the car runs fine, that would mean the map sensor works fine too ...
everything else works except the Tach, Speedo, Oil, and Temp...
It HAS to be a grounding issue, i just need to figure out what ground it is...
The cluster is fine, it has to do with the x-14 or x-5 connector....
...everything else works except the Tach, Speedo, Oil, and Temp...
It HAS to be a grounding issue, i just need to figure out what ground it is...
The cluster is fine, it has to do with the x-14 or x-5 connector....
06-23-04 | 06:05 PM
#124
Thread Starter
Lawn Ornament
Joined: Apr 2001
Posts: 2,416
Likes: 2
From: St Louis, USA
Ok i said the car runs fine, that would mean the map sensor works fine too ...
everything else works except the Tach, Speedo, Oil, and Temp...
It HAS to be a grounding issue, i just need to figure out what ground it is...
The cluster is fine, it has to do with the x-14 or x-5 connector....
...everything else works except the Tach, Speedo, Oil, and Temp...
It HAS to be a grounding issue, i just need to figure out what ground it is...
The cluster is fine, it has to do with the x-14 or x-5 connector....
06-23-04 | 06:05 PM
#125
Thread Starter
Lawn Ornament
Joined: Apr 2001
Posts: 2,416
Likes: 2
From: St Louis, USA
Ok i said the car runs fine, that would mean the map sensor works fine too ...
everything else works except the Tach, Speedo, Oil, and Temp...
It HAS to be a grounding issue, i just need to figure out what ground it is...
The cluster is fine, it has to do with the x-14 or x-5 connector....
...everything else works except the Tach, Speedo, Oil, and Temp...
It HAS to be a grounding issue, i just need to figure out what ground it is...
The cluster is fine, it has to do with the x-14 or x-5 connector....