Product Overview
The iFJF EGR Simulator Eliminator Kit is the most comprehensive no-tune EGR solution available for 1986–1995 Ford trucks and SUVs. Engineered for the full OBS Ford engine lineup — including the 4.9L (300) inline-six, 5.0L (302) V8, 5.8L (351W) V8, and the big-block 7.5L (460) V8 — this kit combines our calibrated electronic simulator module with a CNC-machined billet aluminum block off plate to deliver one thing Ford truck owners want most: no check engine light.
Unlike tuner-dependent EGR delete solutions that require custom ECU programming and risk drivability issues, the iFJF kit is a true plug-and-play hardware solution. The simulator module plugs directly into your factory EGR valve wiring harness using the OEM connector. It continuously outputs the correct position sensor voltage range (0.5–4.5V) that your EEC-IV computer expects to see from a healthy EGR valve — before, during, and after every drive cycle. The result: no P0401, no P0402, no P1405, and no illuminated malfunction indicator lamp.
Every component is manufactured from 6061-T6 aerospace-grade billet aluminum on our in-house CNC machining centers and paired with corrosion-resistant stainless steel hardware. This kit has been tested across thousands of drive cycles on daily-driven OBS F-150s, F-250s, F-350s, Broncos, and 5.0 Mustangs — it works, and it keeps working.
Key Features
Guaranteed No Check Engine Light — The electronic simulator is calibrated to the OEM Bosch/ASD EGR valve position sensor voltage curve used by Ford EEC-IV systems. It prevents P0401 (EGR insufficient flow), P0402 (excessive flow), P0405/P1405 (sensor circuit), and P1406 (DPFE) codes without requiring a tune, reflash, or chip install.
True Plug-and-Play Integration — Uses the factory EV1 3-pin weatherproof connector. No wire cutting, no soldering, no resistor trickery. Connect the simulator, secure it with the included bracket, and your ECU sees exactly what it expects.
Full Engine Family Coverage — Compatible with all 1986–1995 Ford truck engines: 4.9L (300ci) inline-six, 5.0L (302ci) V8, 5.8L (351W) V8, and 7.5L (460ci) big-block V8. One kit covers the entire OBS Ford platform.
CNC-Machined 6061-T6 Billet Block Off Plate — Precision-machined to match the intake manifold EGR port profile with 6.35 mm (1/4") thickness for rigidity under thermal cycling. Includes a high-temperature composite gasket for a leak-free seal.
Stainless Steel Hardware Kit — Grade 304 stainless bolts, flat washers, and lock washers replace the factory carbon-steel fasteners that are often rusted solid on 30-year-old trucks. No more drilling out seized EGR bolts.
Compatibility
Year Range
Make
Model
Engine
Notes
1986–1995
Ford
F-150
4.9L I6 / 5.0L V8 / 5.8L V8
All cab configurations
1986–1995
Ford
F-250
4.9L I6 / 5.0L V8 / 5.8L V8 / 7.5L V8
Includes HD variants
1986–1995
Ford
F-350
4.9L I6 / 5.8L V8 / 7.5L V8
SRW & DRW
1986–1995
Ford
Bronco
4.9L I6 / 5.0L V8 / 5.8L V8
Full-size only
1986–1995
Ford
Mustang
5.0L V8
Fox Body & SN95 (pre-1996)
Note: For 1996–2004 Mustang 4.6L and 5.4L applications, see our SN95/New Edge Mustang EGR Delete Kit.
Specifications
Simulator Module Material: 6061-T6 billet aluminum housing, epoxy-potted PCB
Block Off Plate Material: 6061-T6 billet aluminum, CNC machined
Plate Thickness: 6.35 mm (1/4")
Surface Finish: CNC-machined natural finish with chamfered edges
Hardware: Grade 304 stainless steel — bolts, flat washers, split lock washers
Gasket: High-temperature fiber composite (500°F / 260°C continuous rating)
Connector: OEM-spec EV1 3-pin female weatherproof connector
Simulator Output: 0.5–4.5V analog position sensor emulation
Package Weight: Approximately 0.52 kg (1.15 lbs)
Package Contents: 1× simulator module, 1× block off plate, 1× gasket, 1× stainless hardware kit, 1× mounting bracket, 1× zip-tie, printed installation guide
Installation Notes
Disconnect battery — Remove the negative terminal before beginning any under-hood electrical work.
Remove the EGR valve — Unbolt the factory EGR valve from the intake manifold (typically two bolts) and disconnect the vacuum line and electrical connector.
Clean the mating surface — Use a gasket scraper or Scotch-Brite pad to remove old gasket material and carbon deposits from the intake manifold EGR port flange.
Install the block off plate — Position the supplied gasket between the intake manifold and the block off plate. Torque bolts to 20–25 ft-lbs in a cross pattern.
Connect the simulator — Plug the simulator module into the factory EGR harness connector. The connector is keyed and only fits one way.
Secure the module — Use the included bracket and zip-tie to mount the simulator in a cool location away from direct exhaust manifold radiant heat.
Reconnect the battery — No ECU reset, drive cycle, or relearn procedure is necessary. The check engine light will remain off starting from the first key cycle.
Tools needed: 10 mm socket or wrench, gasket scraper, torque wrench (recommended). Estimated time: 30–45 minutes.
Frequently Asked Questions
How is this kit different from your other Ford EGR products?
This is our flagship full-coverage kit designed for the complete 1986–1995 Ford truck and Bronco engine lineup — 4.9L, 5.0L, 5.8L, and 7.5L. It includes the electronic simulator module that guarantees no check engine light. If you have a smaller-displacement application (2.8L–5.0L), our Simulator & Block Off Kit is calibrated specifically for those engines. If you want a pure mechanical delete without electronics, see our EGR delete kit with exhaust manifold cap.
Will this kit cause my truck to fail emissions testing?
This kit is intended for off-road and competition use only. Vehicles equipped with this kit will not pass a visual emissions inspection, and the EGR monitor readiness flag will not set to "complete." If your state or region requires OBD-II or tailpipe emissions testing for registration, this product is not suitable for your application.
Does the simulator module get hot?
The simulator housing is machined from 6061-T6 aluminum and the internal PCB is fully epoxy-potted for thermal protection. While the module should be mounted away from direct exhaust heat, it is designed to withstand typical under-hood ambient temperatures up to 250°F (121°C). In our long-term testing on daily-driven trucks with under-hood temperatures exceeding 200°F, zero simulator failures have been recorded.
Will this fix a P0401 code on my 1992 F-250 7.5L?
Yes — the P0401 (EGR insufficient flow) code is the most common EGR fault on the 460 big-block, and this kit is specifically designed to resolve it. The simulator provides the correct feedback signal so the EEC-IV system does not detect an EGR flow fault, and the block off plate permanently eliminates the physical EGR path.
Do I need to cap the exhaust-side EGR tube?
The block off plate seals the intake manifold side of the EGR circuit, which is sufficient to stop exhaust gas recirculation. If you want to completely remove the EGR tube from the exhaust manifold for a cleaner engine bay, you'll need to cap the exhaust manifold port. Our complete EGR delete kit with exhaust manifold cap includes this component.
Is this kit compatible with the Ford 300 inline-six (4.9L)?
Yes — the 300ci (4.9L) inline-six is fully supported. The EGR system on the Ford 300 I6 is notorious for carbon-clogged passages and stuck valves, making this one of our most popular applications. The block off plate is machined to the specific bolt pattern of the 300's intake manifold EGR port.
How long does installation take?
Typical installation time is 30–45 minutes with basic hand tools. On vehicles where the factory EGR bolts are severely corroded, allow additional time for bolt extraction. We include fresh stainless hardware specifically to address this common issue.
Will disconnecting the EGR affect my fuel economy?
The EGR system primarily operates during part-throttle cruise conditions and is designed to reduce NOx emissions by lowering combustion temperatures. Disabling EGR may result in a slight increase in combustion chamber temperatures under cruise conditions, but most users report no meaningful change in fuel economy. The engine's ECU will continue to operate in open-loop and closed-loop modes as normal — fuel trims and ignition timing are not affected by the simulator's output signal.
📖 Learn More: Ford EGR Delete Guide
Not sure which EGR solution is right for your Ford? Read our Complete EGR Delete Guide for 1986–1995 OBS Fords — covering cost comparison, installation walkthrough, legal considerations, and compatibility across all engine families.
⚠️ Off-Road Use Only
This EGR simulator eliminator and block off plate kit is sold for off-road, racing, and competition use only. Federal law (Clean Air Act §203(a)(3)) prohibits the removal or rendering inoperative of emissions control devices on motor vehicles used on public roads. The purchaser bears sole responsibility for determining the legality of this product for their intended use and for compliance with all applicable federal, state, and local regulations. iFJF expressly disclaims any liability arising from improper use.
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