S14 SR dash wiring HELP! I've searched but no luck...multiple problems please help!

[SofaKingFast]

Hey guys, I'm having some wiring problems, but first here's some background.

I bought a zenki S14 a couple of months ago with a swapped blacktop SR (WC ecu, early model zenki S14). The car started life as an auto, but the owner had a 5sp swap done to it. I bought the car with the instrument cluster not working (previous owner said it used to work), as well as the wipers and gas gauge, but the car ran fine (hard starts in the morning though). Also the previous owner had installed some ghetto push button start that's basically acting as a switch from the battery direct to the starter.

After some delooming, It looks like the power wire to the wiper amp fried (still not sure why...), and the wire (light green) burned all the way (i'm assuming) through the interior harness to the trigger. I haven't deloomed it to the trigger yet, but so far that's where the trail of melted wire is leading me.

Questions I have:
1.) What would cause the wire to fry in the first place other than obviously it being wired wrong? I know when wiring up an SR you have to replace the SR wiper amp plug with the KA one, but the wiring looks fine (F3 plug pinned correctly), and I have to assume they were smart enough to match up colors on the amp plug (although it was burned bad). Also wouldn't a fuse blow before the wire catching fire?

2.) All of my searches led me to the repinning of dash plug F3, and the little white plug that's pointed out in the FR guide.



SR20DET Swap Engine Harness Wiring Diagram Guide SR SR20

I checked the F3 plug and everything seems to be repinned in the right order, so I go to check the other little white plug.

After hours of staring at the engine harness AND main/dash harness, the little white plug is no where to be found. I did find taped off, unpinned, wires on the engine harness which match up in color to the FR wire guide. However the real problem I'm having is locating the male connecting plug that's supposed to be on the main/dash harness.

I've looked everywhere and it doesn't seem to exist, or I'm not looking in the right spots. I feel like this is the source of my problems with my dash not working, as this plug supposedly has the signal for speedometer, tach, and water temp. Can anyone point me in the right direction? There aren't many S14 to S14 swap threads, but the ones I did find said to only repin the F3 plug. Can anyone confirm/deny this?

3.) The searches for this missing dash plug led me to this thread: http://zilvia.net/f/engine-tech/1911...when-cold.html

It seems I wasn't the only one having the exact same starting issues, where if it was cold or the car had been sitting for a while it would take forever to start (cranked fine). However once it was started the car ran perfectly fine, boosted fine all the way to redline. If you were to turn it off and restart it would fire up no problems. Again the problem leads me back to the same missing plug (orange wire for start signal), but damnit I swear it doesn't exist on my car.

Sorry for the long thread guys, but I'm hoping since there are multiple issues here someone else can benefit from them once I get this all figured out. Thanks for everyone's help. Here are some reference links I've been using to help me with the wiring:

FSM - downloaded them but I can't remember from what site now

Hard Start Issues Thread
http://zilvia.net/f/engine-tech/1911...when-cold.html

Tranny harness wiring
S14 5-speed Transmission Swap - Electrical Connections
Heavy Throttle

FRSport Wiring Guide
SR20DET Swap Engine Harness Wiring Diagram Guide SR SR20

[SofaKingFast]

Anyone? I basically need to know if that little white plug next to the ecm plug exists on s14 sr to s14 swaps?

Sent from my Droid using Tapatalk

[XtremeS14]

You do know that frsport link you posted is for a s13 sr20 into a s13 right? That plug is not on the s14 sr20 harness.

[SofaKingFast]

Thanks extreme that's what I needed to confirm.

Sent from my Droid using Tapatalk

[STEVES14]

Originally Posted by SofaKingFast

Hey guys, I'm having some wiring problems, but first here's some background.

I bought a zenki S14 a couple of months ago with a swapped blacktop SR (WC ecu, early model zenki S14). The car started life as an auto, but the owner had a 5sp swap done to it. I bought the car with the instrument cluster not working (previous owner said it used to work), as well as the wipers and gas gauge, but the car ran fine (hard starts in the morning though). Also the previous owner had installed some ghetto push button start that's basically acting as a switch from the battery direct to the starter.

After some delooming, It looks like the power wire to the wiper amp fried (still not sure why...), and the wire (light green) burned all the way (i'm assuming) through the interior harness to the trigger. I haven't deloomed it to the trigger yet, but so far that's where the trail of melted wire is leading me.

Questions I have:
1.) What would cause the wire to fry in the first place other than obviously it being wired wrong? I know when wiring up an SR you have to replace the SR wiper amp plug with the KA one, but the wiring looks fine (F3 plug pinned correctly), and I have to assume they were smart enough to match up colors on the amp plug (although it was burned bad). Also wouldn't a fuse blow before the wire catching fire?

2.) All of my searches led me to the repinning of dash plug F3, and the little white plug that's pointed out in the FR guide.



SR20DET Swap Engine Harness Wiring Diagram Guide SR SR20

I checked the F3 plug and everything seems to be repinned in the right order, so I go to check the other little white plug.

After hours of staring at the engine harness AND main/dash harness, the little white plug is no where to be found. I did find taped off, unpinned, wires on the engine harness which match up in color to the FR wire guide. However the real problem I'm having is locating the male connecting plug that's supposed to be on the main/dash harness.

I've looked everywhere and it doesn't seem to exist, or I'm not looking in the right spots. I feel like this is the source of my problems with my dash not working, as this plug supposedly has the signal for speedometer, tach, and water temp. Can anyone point me in the right direction? There aren't many S14 to S14 swap threads, but the ones I did find said to only repin the F3 plug. Can anyone confirm/deny this?

3.) The searches for this missing dash plug led me to this thread: http://zilvia.net/f/engine-tech/1911...when-cold.html

It seems I wasn't the only one having the exact same starting issues, where if it was cold or the car had been sitting for a while it would take forever to start (cranked fine). However once it was started the car ran perfectly fine, boosted fine all the way to redline. If you were to turn it off and restart it would fire up no problems. Again the problem leads me back to the same missing plug (orange wire for start signal), but damnit I swear it doesn't exist on my car.

Sorry for the long thread guys, but I'm hoping since there are multiple issues here someone else can benefit from them once I get this all figured out. Thanks for everyone's help. Here are some reference links I've been using to help me with the wiring:

FSM - downloaded them but I can't remember from what site now

Hard Start Issues Thread
http://zilvia.net/f/engine-tech/1911...when-cold.html

Tranny harness wiring
S14 5-speed Transmission Swap - Electrical Connections
Heavy Throttle

FRSport Wiring Guide
SR20DET Swap Engine Harness Wiring Diagram Guide SR SR20

i see you found one of my threads lolol....cool.....forget to say one more thing, because my car was a AUTO convert to 5spd i was missing that orange start wire so i grabbed the start signal wire straight from the key solenoid. Use a voltmeter to figure out which wire to tap to because i forgot. its been so long ever since i wrote up that thread i don't have a stock ecu anymore i have a AEM series 2 system hehehe

Talk about waking up a old thread lol....just in case someone finds this hopefully it helps them out.

[SofaKingFast]

Steve, yeah you tend to pull up archaic threads when you use the search function properly haha. Mine was an Auto to 5spd convert too. In any case i've fixed ALL of my electrical gremlins in my car so i'll be happy to help answer any questions people might have.

[STEVES14]

Originally Posted by SofaKingFast

Steve, yeah you tend to pull up archaic threads when you use the search function properly haha. Mine was an Auto to 5spd convert too. In any case i've fixed ALL of my electrical gremlins in my car so i'll be happy to help answer any questions people might have.

hey have you hread anything about a chasebay harness? do you know anyone who bought there harness for the sr20's.

[SofaKingFast]

Not at all, I've only heard of wiring specialties sorry.

Ryan

[nismo90]

Originally Posted by SofaKingFast

Hey guys, I'm having some wiring problems, but first here's some background.

I bought a zenki S14 a couple of months ago with a swapped blacktop SR (WC ecu, early model zenki S14). The car started life as an auto, but the owner had a 5sp swap done to it. I bought the car with the instrument cluster not working (previous owner said it used to work), as well as the wipers and gas gauge, but the car ran fine (hard starts in the morning though). Also the previous owner had installed some ghetto push button start that's basically acting as a switch from the battery direct to the starter.

After some delooming, It looks like the power wire to the wiper amp fried (still not sure why...), and the wire (light green) burned all the way (i'm assuming) through the interior harness to the trigger. I haven't deloomed it to the trigger yet, but so far that's where the trail of melted wire is leading me.

Questions I have:
1.) What would cause the wire to fry in the first place other than obviously it being wired wrong? I know when wiring up an SR you have to replace the SR wiper amp plug with the KA one, but the wiring looks fine (F3 plug pinned correctly), and I have to assume they were smart enough to match up colors on the amp plug (although it was burned bad). Also wouldn't a fuse blow before the wire catching fire?

2.) All of my searches led me to the repinning of dash plug F3, and the little white plug that's pointed out in the FR guide.



SR20DET Swap Engine Harness Wiring Diagram Guide SR SR20

I checked the F3 plug and everything seems to be repinned in the right order, so I go to check the other little white plug.

After hours of staring at the engine harness AND main/dash harness, the little white plug is no where to be found. I did find taped off, unpinned, wires on the engine harness which match up in color to the FR wire guide. However the real problem I'm having is locating the male connecting plug that's supposed to be on the main/dash harness.

I've looked everywhere and it doesn't seem to exist, or I'm not looking in the right spots. I feel like this is the source of my problems with my dash not working, as this plug supposedly has the signal for speedometer, tach, and water temp. Can anyone point me in the right direction? There aren't many S14 to S14 swap threads, but the ones I did find said to only repin the F3 plug. Can anyone confirm/deny this?

3.) The searches for this missing dash plug led me to this thread: http://zilvia.net/f/engine-tech/1911...when-cold.html

It seems I wasn't the only one having the exact same starting issues, where if it was cold or the car had been sitting for a while it would take forever to start (cranked fine). However once it was started the car ran perfectly fine, boosted fine all the way to redline. If you were to turn it off and restart it would fire up no problems. Again the problem leads me back to the same missing plug (orange wire for start signal), but damnit I swear it doesn't exist on my car.

Sorry for the long thread guys, but I'm hoping since there are multiple issues here someone else can benefit from them once I get this all figured out. Thanks for everyone's help. Here are some reference links I've been using to help me with the wiring:

FSM - downloaded them but I can't remember from what site now

Hard Start Issues Thread
http://zilvia.net/f/engine-tech/1911...when-cold.html

Tranny harness wiring
S14 5-speed Transmission Swap - Electrical Connections
Heavy Throttle

FRSport Wiring Guide
SR20DET Swap Engine Harness Wiring Diagram Guide SR SR20

Ok, i know this is a old Thread but wanted to include my situation with this write-up so it can be viewed by others.

Last summer i did a s13 redtop swap in a S14.. I did all my own wiring, and had run into a problem with starting when cold.. i found the "hard to start when cold thread" did make sure i hooked up the wire off the ecu plug side to the correct ignition wire on the F3 plug (dash plug).. well still didn't work.. So for now i have the orange wire connected to a constant 12 volts, starts up and runs fine this way. (besides running rich)

Jumping to another issue, the car has a bypassed push button start switch hooked up strait to the starter from the previous owner, (starts fine using this) but have found if i move around the key enough it will start occasionally using the key. So figured it was the ignition switch, replaced it and still nothing..

Now the questions i have;
*Would the ignition issue cause the cold start problem?
* Does the orange wire need to see 12 volts only when the car is about to start?
*If the above is true would running the orange wire to a constant 12 volts make the car run rich?
* Could the whole mechanical key assembly be bad causing it not to start using the key?


Sorry for the long post, just need to get this resolved and wanted to seek others expertise. Thanks again!