The Jeep was running fine then the other day I jump in it and it fires up then rpms drop steadily until it dies. Now when it does fire the rpms go up to about 1000 then it drops and shuts off. I have replaced the MAP and TPS sensor and nothing has changed. At one point I tried starting the Jeep without the MAP sensor plugged in the Jeep would start but idle very rough, if I hit the accelerator it would die. One time while just letting it idle rough all of a sudden it went up to about 2000rpm and dropped jump up again then dropped until it dies. for the most part I cannot even get it to start now. At times with the ignition turned it is firing and trying to start but as soon as you let go of the ignition it dies. I am at a loss to what is going on and how to fix it.
Sierra Club, helping to confine humans within city limits one acre at a time.