10-04-2022, 03:51 AM
The Memjet Evo is a variable resistor that goes inline with the intake air temp sensor mounted on the airbox. Its purpose is to trick the ECU into thinking the air temp is colder than actual, as PowerDubs says above.
Normally when first starting up, the air temp is cooler, and the ECU and delivers a slightly richer fuel mixture for smooth running. This device tricks it into thinking it is always just a bit cooler, so delivers a slightly richer mixture across the board.
People often use these to get rid of the deceleration popping after installing a louder exhaust. Overall performance may be improved, worsened, or unchanged, but the popping will likely lessen.
There would need to be 2 sub-harnesses made, one plugged into the sensor, one into the harness. Looks like a job for wire nuts and electrical tape. I would cut the Memjet Evo's connectors off, and splice them into the wires between the original IAT sensor and its plug. wires. That way, if you needed to return to stock, order a new IAT and just plug it in.
Normally when first starting up, the air temp is cooler, and the ECU and delivers a slightly richer fuel mixture for smooth running. This device tricks it into thinking it is always just a bit cooler, so delivers a slightly richer mixture across the board.
People often use these to get rid of the deceleration popping after installing a louder exhaust. Overall performance may be improved, worsened, or unchanged, but the popping will likely lessen.
There would need to be 2 sub-harnesses made, one plugged into the sensor, one into the harness. Looks like a job for wire nuts and electrical tape. I would cut the Memjet Evo's connectors off, and splice them into the wires between the original IAT sensor and its plug. wires. That way, if you needed to return to stock, order a new IAT and just plug it in.