EvilAreXeven

iTrader: (20)

Located by the ECU, but don't see any plugs where they can plug in to. I received this harness with an engine I bought.

Any tips?? Engine won't start, I'm not quite sure if these plugs have something to do with it.

rdahm

iTrader: (6)

How many plugs are on that end of the harness? From the firewall to the inside?Just seeing if it's unusual. My harness has four plugs on that side. And a grounding line.

EvilAreXeven

iTrader: (20)

I have more than 4. All of the yellow ecu plugs, a little black plug that plugs in to a black box, ground wire, plus these two plugs.... Now I'm not so sure what harness this is.

7passu

iTrader: (10)

The auto harness has more plugs than the manual...those may be for the auto trans...

thewird

iTrader: (8)

From a past experience the automatic harness injector clips are connected differently then a manual one. I don't remember which goes where though. Try and find an auto FSM.

thewird

EvilAreXeven

iTrader: (20)

Would an auto harness have plugs for a manual transmission, or at least have similar transmission plugs? There seemed to be 4 plugs down by the manual tranny that plugged in just fine, but that may be another problem.

I'll try to find an auto FSM

thewird

iTrader: (8)

Don't think there is any problem with the transmission connections. I think your problem lies in the injector connections.

Those 2 connections in the picture I believe are for the auto transmission ECU (I'm guessing given the location). They don't need to be plugged in.

thewird

hwnd

iTrader: (4)

If memory serves correctly - the white plug belongs to part of the dash and would plug into the main/front harness(this is the big boy that wraps around the entire front of the car - fuse & relay boxes, etc).. also, didn't the stock FD engine harness have a single white plug hanging from it?

for the blue plug - i honestly have no idea. I'm going to look stupid and also assume it belongs with the automatic transmission ECU.

EvilAreXeven

iTrader: (20)

Thewird,

Do you recall where you sourced your information for the auto harness injector plugs? I've been searching and I've had no luck.

Going to try the FSM again and see what i find.

Gurew

iTrader: (4)

hey now that you mention it, i think this was an auto car and converted to manual.

why wont the car start?

1)do you have fuel
2) do you have ign
3) does it turn over

if you have those 3 things the car should work just fine..my guess is your fuel pump isnt being turned on in which case you can wire in a relay to a switched 12v and to a switch for deflood

ill be here to help you best i can

EvilAreXeven

iTrader: (20)

It's getting fuel to the FPD, from there, I'm not sure if my injectors are firing. Spark, I haven't checked but that's next on my list. I was just trying to figure out what harness this is before I move on.

Thanks Darin, so you're pretty sure it's an auto harness?

Gurew

iTrader: (4)

i spoke with the previous owner, he said it was a manual swap but wasnt sure if the harness was replaced with a manual one but said the harness was replaced. so idk....

EvilAreXeven

iTrader: (20)

when you rebuilt this engine you must have removed the harness no? Do you recall plugging in/modifying those two connectors by the ecu?

Gurew

iTrader: (4)

i left the harness in the car for simplicity

check those 2 things

1) fuel pump/pressure
2) ignition/spark (the plugs are brand new fyi)

EvilAreXeven

iTrader: (20)

Ok so I have no spark. Here's the method I used: I pulled the plugs, left the wires connected to them, and tried to crank it. No visible spark. Assuming this method should have worked, where would be the first place to look?

Keep in mind, I just installed this harness on to the motor, so it's entirely possible I mixed up a plug. Any pointers on where in the harness I should be looking for a wrong connection? Or any other reason why I wouldn't be getting spark? Thanks in advance

Gurew

iTrader: (4)

did you connect the harness plug that goes to the coils to the harness on the driver side, it will be the one that runs towards the front on the drivers side

EvilAreXeven

iTrader: (20)

The plug that connects the coil packs to the charging harness by driver shock tower? It's connected

Gurew

iTrader: (4)

ok next the plugs are straight forward....


[front leading(bottom) plug] [trailing (top plugs)] [rear leading (bottom plug)]


thats looking at the 3 coils from the driverside looking to the center of the engine bay [L] [T] [L]

EvilAreXeven

iTrader: (20)

But they aren't sparking at all now not even when the plugs are removed from the housing and the wires are connected to them

ttmott

iTrader: (1)

Between the heater box and firewall up where you can barely feel it is the EM to Dash harness connector X-14. That is a white connector on both sides. The blue connector should be the EM to F harness connector X-05. The only difference if the fan recall mod was done then there is a patch cable between both the X-14 and X-05 and the addition of a little control box and black connector behind the ECM.

If it is an automatic harness the only separate connector in the footwell area is the H1-01 control module connector and that is black and goes to the transmission control module. All of the other automatic transmission wiring to through the same X-05 and X-14 white and blue connectors. Connector X-05 (blue) for the auto. is bigger (21 pins) than the manual (10 pins).

ttmott

iTrader: (1)

Edit - I believe the only other blue connector is above the ECM and that is a 20 pin connector (X-17) that connects the Instrument panel harness to the Dash harness.

Also, the X-14 white connector has 14 pins for manual trans and 18 pins for the auto.

Regardless, if these are what I think the motor will definately not start or run.

EvilAreXeven

iTrader: (20)

From your description it appears I have an auto harness. The blue plug in the picture above is 21 pin.

Now that that's settled, how do I modify that 21 pin blue plug to work with the manual dash harness? I searched but the auto-manual stuff doesn't make reference to that 21 pin blue plug...unless I'm mistaken.

ttmott

iTrader: (1)

Confused - you have an automatic EM harness (the 21 pin in your pic) and you found the other blue connector from the Front harness and that one has 10 pins??

If so you have an engine and EM harness from an automatic trans. car in a manual car (at least that is what it sounds like).

Not an easy task as the automatic trans EM harness does not have the leads to the manual transmission neutral, 1st, and 2nd switches. Conversely there are leads to the automatic trans valve body. It can be done but if all of the other wiring in the car is for manual car I would change the EM harness. If there are any other harnesses from an automatic car the story complicates even further....

Here is the wires:
Manual Front connector to Manual EM Connector:
Green to Black/Blue - Air pump
Black/Light Green to Brown/Black - MAP
Violet/White to Yellow - 1st gear sw (man only)
Yellow to Black/Green - Air pump
Green/white to Brown - Neutral sw (man only)
White/Green to Red - 2nd gear sw (man only)
Black/White to Black/White - solenoid valves
Green/Black to White/Blue - Fan relays
Black/Orange to Black/Yellow - Injectors
Brown/White to Brown to White - MAP

Automatic Front Connector to Automatic EM Connector:
Green to Black/Blue - Air pump
Green/Black to White/Blue - Fan relays
Brown/White to Brown to White - MAP
Black/Blue to Black - Water Thermo sw (Auto Only)
Brown/Orange to Green/White - Trans Control Module (Auto Only)
Orange/Black to Red/White - Trans Control Module (Auto Only)
Blue to Green/Red - Trans Control Module (Auto Only)
Yellow/Green to Green/Yellow - Trans Control Module (Auto Only)
Lt Green/Red to Blue/Green - Trans Control Module (Auto Only)
White/Green to Yellow - Trans Valve (Auto Only)
White to Blue - Trans Valve (Auto Only)
Black/Light Green to Brown/Black - MAP
Violet to Black - Water thermo Sw (Auto Only)
Black/Red to Red/Yellow - Range Sw (Auto Only
Black/White to Black/White - solenoid valves
Blue/White to Blue/Yellow - Range Sw (Auto Only)
Black/Orange to Black/Yellow - Injectors
Yellow to Black/Green - Air pump
White/Red to Green - Trans Valve (Auto Only)
White/Yellow to Brown - Trans Valve (Auto Only)
White/Blue to Yellow/Red - Trans Valve (Auto Only)








Assume also you have the manual trans white connectors now connected.

EvilAreXeven

iTrader: (20)

Thank you ttmott I think you just about cleared it up. My car is originally manual, so the front harness is manual. The EM harness is auto from the looks of it, so I guess my options are to get the connectors and repin my auto EM harness, or change my dash harness to an auto front harness.

I'm just going to put back my old worn manual harness. Thanks guys

ttmott

iTrader: (1)

I'll tell ya Ray at Malloy has a great deal on the EM harness and it's new!! Don't quote me but I think he was asking around $800 for it and it lists for over $1400; he had them in stock.
If you are going to go through tearing the motor apart to change the harness I'd get a new one.
Or, if the connectors on the old manual harness are OK you can repin the auto harness to the manual connectors. There will be some unused wires. Make sure you download the wiring manual before you even attempt this. If this is done wrong you can fry the ECM.