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FORD BRONCO
-> IGNITION; plugs/wires, distributors, MSD, firing orders; switch & ignition actuator rod, TSBs...
-> System; Davis Unified Ignition (DUI), Duraspark, Thick Film Ignition (TFI), MSD, Jacobs, Crane
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WELCOME to MIESK5's BIG BRONCO LINKS
This is a Ford Bronco, Truck & Van Technical, Parts & Vehicle Classifieds LINKS site developed by the MIESK5 Family and is not affiliated with the Ford Motor Company in any manner.
Although we initially developed this site for 78-96 Big Broncos, information in many Links also applies to Ford Trucks, Vans & Cars.
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Crane
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Davis Unified Ignition (DUI)
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Duraspark
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High Energy Ignition (HEI)
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Jacobs
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MSD
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Thick Film Ignition (TFI); Ignition Module, also called the Ignition Control Module (ICM); miesk5 NOTE; use BLACK Modules in 94-96 Broncos & Hall Effect, also called the Profile Ignition Pick-up (PIP) Signal, or Stator, or RPM
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EEC IV Strategies
Source: by Ford via miesk5 at broncolinks.com/gallery
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No Spark Troubleshooting, General; "...Secondary ignition voltage can shock you. Do NOT hold or touch a spark plug wire while cranking the engine.
disconnect one of the plug wires from a spark plug and place the end of the wire near a metal surface on the engine. You can insert a small Phillips screwdriver into the end of the wire (the plug boot), or a small bolt or nail to provide a conductive path. Then crank the engine and look for a spark to jump from the screwdriver, bolt or nail in the end of the plug wire to the engine. If you do not see a spark, there is an ignition problem..."
Source: by aa1car.com
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No Spark Troubleshooting, Overview & Operation; "...Ford calls this electronic ignition the Thick Film Integrated-IV (TFI-IV) ignition system. The TFI module is also known as the Ignition Control Module (ICM) which reports engine position and rpm to the PCM. The PCM then determines the proper spark timing and advance, and returns a reference signal to tell the TFI module to switch the coil, thereby creating a spark. The PCM used on these vehicles is referred to by Ford as the Electronic Engine Control-IV (EEC-IV) module..." most is applicable to Broncos, read more
Source: by therangerstation.com
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Thick Film Ignition (TFI) Tester Overview, pic & TIPs; "...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. A better test is to check the fuel pump relay when cranking the engine over. Not the 2 second run after the key is turned on, but while cranking the engine. If the fuel pump relay kicks on when cranking, the TFI & Stator are good..."
Source: by Ryan M (Fireguy50) at fordfuelinjection.com
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Tuning with a Vacuum Gauge
Source: by classicinlines.com
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Wire Color Code Abbreviation Chart; see post #4; BK Black, BL Blue, BR Brown, DB Dark Blue, DG Dark Green, GN Green, GY Grey, LB Light Blue, LG Light Green, N Natural, O Orange, P Purple, PK Pink, R Red, T Tan, V Violet, W White, Y Yellow
Source: by miesk5 at FSB
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