A chip can be installed on your 2.5-liter Jeep engine to increase the performance. Various aftermarket performance chips are offered for your specific vehicle. They plug directly into the electronic control module (ECM), which is located inside the engine compartment. Purchase the performance chip online or at your local auto parts store. Installation is completed using simple tools in about 30 minutes. The chip will increase power, performance and throttle response of your vehicle.
Open the hood of your Jeep.
Remove the negative battery cable from the battery, loosening the retaining nut with a wrench. Pull the cable from the battery and place it so that it cannot come in contact with the battery.
Locate the ECM inside the engine compartment on the firewall. The large wiring harness from the sensors on the engine plug into the ECM.
Remove the connector at the ECM by pressing both release clips on the connector. Gently pull the connector from the ECM with your hand.
Plug the male end of the performance chip into the ECM. Ensure that the chip is connected tightly, listening for the release clips to engage. Plug the wiring harness of the vehicle into the opposite end of the performance chip. Once again, confirm that the connection is tight by listening for the release clips to engage.
Reattach the negative battery cable to the battery post on the battery. Tighten the nut with a wrench.
