Sep 05, 2011 there is some great info here what i was wondering if there is someone out there that did or can help with my 2005 3v eng swap it is in a 86 fox body that has been gutted and has just the 05 harness i have no stock gauges and was looking to hook up a tach and a check eng light and cant seem to find what wires to connect. Apr 05, 2011 a haynes manual has the eec schematic in it. Apr 24, 2008 wiring diagrams 19791986 in pdf if this is your first visit, be sure to check out the faq by clicking the link above. My 93 needs a new ecu harness so i found a nos m12071c302 harness which was based off of the 92. If you compare the 95 ecu pinout with the 96 ecu pinout you will notice that the majority of the wiring color codes match oneforone. Maf theory and facts, from here are some facts and information to help you better understand the use and function of the maf system. Apr 12, 2020 may gods grace bless you in the lord jesus christ. The engine does a big part of the heavy lifting, but problems with your wiring and electrical system can greatly diminish the joy you derive from your pony car. Feb 17, 2014 may gods grace bless you in the lord jesus christ. Im looking for the wiring diagram for the ecu, specifically to try and find out a tap for rpm signal to be able to install a shift light.
The electrical wiring for the airbags, crash sensors, safety belt. It also protects the unit in case of reverse battery connection. Ford mustang 8693 megasquirt gen2 pnp plug and play standalone engine management system is compatible with the following. Hey fellas, i need a pinout diagram for a pcu on a 2006 mustang gt. Be sure you also have a big vam 3 inout and 35lb fuel injectors brown tops to go with it. Ecu pinout diagrams innovate motorsports application notes. We should also be able to reprogram the collision warning light as shift light like in the gt350. If somebody has already done it, please share the method. There are two connectors on the factory harness going into the cabin of the xr4ti. Does anyone have a diagram of the dash harness that goes through the. I will utilize the stock xr4ti wiring harness and adapt it to the car using an la3 ecu. Diagrams for the 92 and 93 corvette pcms are not included but tech support is available via email.
The 96 ecu was a transition year for the ecu, so to speak. Enclosed is some wiring diagrams of the factory harness and a power module system diagram. Mustang engine control computers best engine control. After the correct wires are determined, it is an easy task to remove the wires from the plug by pressing down on the tab on the front of the plug. If anyone can point me to the right direction where to get one or if anyone has one. Ford mustang workshop service and repair manuals home. On sn95 mustangs, you can use the megasquirt to remove the stock ecu if you have a manual. Pedal pot 1 signal ground ecu signal ground stc 5v stc signal ecu signal stc engine ecu stc throttle body connections toyota. I want to be sure i have defective pcm before i plunk down big bucks for a new one at the dealer. As this is a free service it receives an overwhelming amount of requests and may take up to a week or longer for a response. Mustang diagrams fuse identification, wiring schematics. Classic and enduring, your ford mustang is an original, and you take pride in keeping your spirited pony car in mint condition. Also the hego sensor wiring is slightly different depending on what transmission was used originally so dont forget that.
Quick short vid on how to tell what ecu your mustang has. Electronic control unit is an embedded system that controls one or more of the electrical systems or subsystems in a vehicle. Find the large orangeblack wire possibly yellow for 92 93 models that has a fusible. Eec iv technical documentation, from a most read guide to the inner workings of the eec iv pcm. If you insist on running a different ecu 8386 tc, svo, merkur, ect then youll have to modify the wiring accordingly. Im trying to find a ecu pinout diagram for a ml430 1999. One is for the ecu, and the other is a connector with five wires. Choose for me to minimize cost choose for me to minimize cost.
You will need a good diagram of the other vehicle to merge the 2 harnesss together. True, we did a custom wiring harness where only the pcm is being used out of a 08 4. I am looking for a list of pinouts for a 1989 thunderbird sc with ecu code c0s. The vehicle used for drawing up these application docs was a usdm 1993 ford mustang 5. Awesome color wiring diagram, by tmoss, for the 8891 mustang 5. Mustang diagrams including the fuse box and wiring schematics for the following year ford mustangs. Rockauto ships auto parts and body parts from over 300 manufacturers to customers doors worldwide, all at warehouse prices. When i look at the specs required for the new cam it indicates that the stock ecu is not compatible so i have done some research and an a9l ecu is what i will need to have the engine run smoothly. This manual contains the information necessary for the installation of the hardware contained in this kit, which includes the ecu, wiring, and 3. I answer a many questions daily and i will get to you. Ford mustang 8693 megasquirt gen2 plug and play for the 19861993 ford mustang 5. If your vehicles computer isnt all that it should be, upgrade to a new ford mustang engine control module from autozone.
Ford workshop service and repair manuals, 2005 mustang wiring diagrams electronic engine controls 4. Holley efi ecus both contain multiple processing devices that require clean power and ground sources. Without the fuse the unit will certainly be damaged in the case of a reversed battery connection. The cost of running this website is covered by advertisements. Where a sensor must be connected to both the stc and the engine ecu this must be done as below. My focus is on proper wiring at the ecu to bypass unused sensors and to get rid of idle surge at startup and rich fuel. Need fox body ecu harness diagrams ford mustang forums. Depending on the car model there is a different selection to configure the logger refer to. The auto zone wiring diagrams tell you hot at all times,hot ign on, hot in start ect. Mustang diagrams including the fuse box and wiring schematics for the following.
I cannot see where the other end of these wires exits the harness as it is still in my car. All controls have the same wiring except the windshield wipers. Ford mustang wiring diagram for 19871993 instrument cluster. In other words, the 96 ecu implemented wiring similar to that from the 95 ecu, but also added a few additional changes that would become standard. I have in my possession both the a9l and the main wiring harness from a 1990 mustang gt. Cdan4 crai8 craia ccaqe 19992004 2003 d0av7 mqah1 rqaw1 rzasa raad3 cmai6 9904 lightningharley truck 19962004 vehicles. Download 93 ford mustang 5 0 ecu pinout diagram on. Can be reconfigured for some other eeciv eec4 equipped cars with internal jumper changes by special order contact. If you do not you will be relying on power grounds and excess noise will be introduced into at least one of the signals. There are really very few connections to make to get it running. A forum community dedicated to all ford mustang owners and enthusiasts. The fuel pump relay was placed differently on 89 through mid 1992 harnesses.
If you can find a late 92 or 1993 harness, the relay is, imo, easier to deal with. Engine control module ecm computer automatic trans. Ford mustang ecu technical documentation release 1. Electronic control unit is an embedded system that controls one or more of the electrical systems or subsystems in a. I am going to put an xr4ti engine in a 75 mustang ii hatchback. Cat c15 ecm wiring diagram free download as pdf file. Ecu in the case of severe errors in the wiring 12v to sensor gnd for instance.
Egr i know there is controversy about whether to leave the egr open and cause the computer to just ignore it as inoperative, or to use a plug that tells the computer that the egr is there with a. Ford mustang wiring diagram for 19871993 instrument cluster by jeff warren email. My new 91 fox body mustangecu fixed fuel pump circut. All factory electronicsignition system components are in place and the factory wiring harness is in perfect condition. See ignition wiring diagrams at the end of this manual. Honda 1992 1995 honda prelude 1992 1995 honda accord 1996 1997 honda accord 1998 2002 honda. Mine is a 90 and a a9p but im pretty sure there is a schematic in there for the a9l also. Ford mustang obdii connection ecu technical documentation release 1.
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