FITMENT
- 1986-1995 Ford F150: 2.8L, 4.9L, 5.0L, 5.8L, 7.5L
- 1986-1995 Ford F250: 2.8L, 4.9L, 5.0L, 5.8L, 7.5L
- 1986-1995 Ford Bronco: 2.8L, 4.9L, 5.0L, 5.8L, 7.5L
- 1986-1995 Ford Mustang: 5.0L, 2.3L
- Fits vehicles equipped with the Ford EEC-IV (OBD-1) engine computer utilizing a 3-pin EVP sensor plug.
DESCRIPTION
Product Overview
- When removing, blocking off, or deleting a faulty EGR valve on classic 1986s and 1995s Ford trucks, the factory engine control computer detects the missing electrical resistance from the EGR Valve Position sensor. This causes the dashboard to illuminate a constant CEL and triggers stored fault codes (such as Ford OBD-1 Codes 31, 33, or 34).
- The EGR Performance Simulator / Eliminator Plug is an electronic bypass module engineered to solve this exact issue. Designed as a direct plug-and-play harness bridge, it connects directly into your truck's factory 3-pin EVP wiring harness.
- The module sends a fixed, closed-position voltage signal back to the engine computer, convincing it that the EGR valve is installed and fully operational—clearing CEL fault codes without splicing or cutting wires.
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This is NOT an EGR defeat device, this device does not disable the EGR functions. It is connected to the wiring harness to keep the check engine light off, yet remain functional for other check engine light problems in off-road /race track applications, where EGR is not applicable. The purchaser (end user) bears full responsibility for any decisions made upon the end use of this item and all consequential liabilities thereof.
Key Features
- Plug-and-Play Installation: Plugs directly into your factory 3-pin wiring harness pigtail—no wire stripping, cutting, or soldering required.
- Eliminates Check Engine Lights: Sends a constant "closed valve" voltage signal back to the computer to clear persistent EGR fault codes.
- Prevents Fail-Safe Computer Modes: Stops the EEC-IV ECU from pulling timing or running rich due to missing EGR feedback signals.
- Weatherproof & Vibration Resistant: Features a durable molded connector housing with a locking latch to withstand engine bay heat, moisture, and road vibration.
Installation Instructions:
- Disconnect wiring harness from EGR valve sensor and assure that connector is clean and not corroded.
Dielectric grease inside the connector is normal and should not be removed.
- Firmly insert the EGR Eliminator into the wiring harness until locking tab locks to assure a good connection. Using electrical tape or a zip tie, secure the EGR Eliminator and wiring harness to a solid object, such as a nearby wiring harness to prevent the EGR Eliminator from bouncing and creating a bad connection in the future.
- Start the vehicle and check to assure the Check Engine Light is not illuminated. If the EGR Eliminator has a bad connection or has not been properly installed, the CEL light should immediately illuminate upon start-up and remain on.
- Note: After the EGR Eliminator is installed, when checking computer codes it is normal to receive a code 33 / 332. Although this code exists, it will not trigger the CEL unless other codes are also present.
FAQ
Q: Will installing this simulator plug cause my truck to fail emissions or state inspections?
A: You can remove the valve completely and install a metal block-off plate over the intake port to clean up the engine bay. The standard plate has narrower bolt center spacing, while the universal/V8 plate has wider bolt spacing.
Q: Will this plug prevent my engine from running lean or pinging (detonation)?
A: Plugging in the simulator keeps the ECU from pulling ignition timing, but physically blocking off hot exhaust gases prevents lean misfires caused by a stuck-open EGR valve. For optimal performance, pair this electronic plug with a solid block-off plate.
Q: Can I use this simulator if my factory wiring harness connector is corroded or damaged?
A: No. The simulator relies on clean electrical contact with the factory 3-pin harness. If your original harness pigtail is corroded, melted, or brittle, clean the contacts or replace the pigtail before plugging in the simulator.
Q: What is the difference between this 3-pin EVP simulator and a DPFE sensor bypass?
A: This plug is specifically calibrated for older 3-pin EVP (EGR Valve Position) sensors used on 1986–1995 OBD-1 Ford engines. It will not work on 1996+ OBD-2 Ford trucks.
Q: Why is my Check Engine Light (CEL) still on after plugging in the simulator?
A: The EEC-IV computer stores historical codes in its memory. You must disconnect the negative battery terminal for 10–15 minutes to clear old memory. If the light returns, use an OBD-1 scanner to check for non-EGR fault codes (such as O2 or TPS sensors).
