TOOLS
TFI Wrench
This wrench is the only way to remove and replace a TFI module. The TFI bolts have 7/32" / 5.5mm heads but no normal socket fits into the TFI, so you have to buy this special tool. The older design is smaller and used with a 1/4 inch drive socket set. The design changed to this newer hand model. The TFI never needed to be torqued down with a socket set, and this new design is simpler to use. To remove the TFI simply remove the two bolts, and slid the module downward. You MUST slide the TFI down before you pull it away from the distributor or it won’t come off correctly.
TFI Tester
This is a TFI tester. Don’t expect a wonder tool for diagnosis of intermittent TFI problems. This tool will only show a completely failed module or a TFI that will start a vehicle. I haven’t seen any TFI testers that will show a partly failed or intermediate problem. You connect a 9-volt battery and the TFI in question. Then you touch the yellow clip to the Stator pins. An LED will come on if it’s a “good” TFI and no light if it’s failed.
Upper Intake Socket
This tool is made to help remove the upper intake from your vehicle. It is not needed for all Ford intakes. Some intakes have longer bolts that are easier to reach. But if you can only see 4 or 5 of the bolts holding the upper intake on the engine, you’ll probably need one of these. The bolt that you can’t see way down in the middle has a Torx 40 head. It is possible to make a chain of 3/8 or 1/4 drive socket pieces to reach these bolts. But this page is about all the cool tools you don’t have yet.
Fuel Rail Disconnects
You must buy or borrow disconnect tools to disassemble the fuel rails. These are sold as disconnects for Ford fuel and AC fittings in most stores. There are two different styles to this tool. The cheaper version is shown in the first photo below. They are one-piece design. The more expensive version is a two-piece design, it springs open and closed. Both versions work very well.
Here are a few different views of these fittings to ad
your in there removal.
Here is a visual explanation on the removal of these fittings. I have found that you have to twist while pushing the disconnect tool into the cage. This helps ensure the spring spreads over the female fitting. Once the spring is spread over the female fitting, you have to pull the two ends apart. They are relatively durable fittings so don’t be afraid to use some force to help the O-rings slide. Remember these are sealed to over 100PSI and they have been connected for how long?
60-pin Brake-Out-Box (BOB)
If you can’t find a problem or find yourself testing sensors every month this is the tool for you. This mounts between the EEC and the harness. You bolt the 60-pin connector to the BOB and then mount the BOB to the EEC. As you see in the picture there is a panel with 60 holes in it. You simple take the probes from you voltmeter and stick them in the holes that correspond to the sensor or wiring you are checking.
SnEEC-IV
This is probably the coolest way to test and diagnosis problems with your EEC-IV vehicle. This is the ultimate Brake-Out-Box, in a class called data-loggers! You don’t need a voltmeter, and all your friends will be jealous. Just like the BOB you mount the SnEEC between the 60-pin connector and the EEC.
That is where the similarities end. You have two options for checking EFI system status. There is a remote mounted switch that when you press the button it begins to record data. Say you have an intermediate problem you cant find. Drive the vehicle around, when the engine starts acting funny activate the switch, and the SnEEC records the event for further study. I know you already scrolled down to see the pictures, so you know that the SnEEC connects to a computer for reading. Two choices for reading the information. You can record the data; remove the SnEEC for diagnosis on the desktop computer. OR if you like cool toys you can leave a laptop computer installed in the vehicle. You can read all the senors at once, engine RPM, vehicle speed, and even hook up a wide band oxygen sensor for testing and tuning of your EFI system. This SnEEC system can show recorded events on the laptop or it can read live data.
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