Jeep starts and idles perfect no acceleration- engine pops and sputters and will die. Changed plugs, wires, tps, cps, map sensor, no vacuum leaks. I am lost, also where is obd plug in? Thank you.
Sounds like the catalytic converter or muffler are clogged. There isn't much exhaust at idle, but when you accelerate your exhaust volume increases, thus if your catalytic converter or muffler are clogged the restrict the exhaust escaping out thus causing an excess of back pressure which won't allow the engine to breathe normally.
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My Jeep started sputtering and bogging down when accelerating today. Seems like when I get up to 40mph or so it starts bucking. Also idles rough.
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