As I said there are no vacuum leaks in fact I just changed out the intake and exhaust manifold gasket yet again and also checked all the vacuum lines for leaks and still nothing. So just a recap my jeep has a bad idol until warms up, has really bad fuel mileage, when you get on it bucks and pops threw the intake but if fine when you take it easy, and it won't rev past 4k! I have replace the cap, rotor, plugs, wires, coolant temp sensor, iac, tps, o2 sensor, crank position sensor, and the map sensor twice! And my engine grounds seem to be good as we as my battery and the alt!
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