edit: I realize this method uses an entire can, but the seafoam did it's job and that's all I care about.
I dumped an entire can into my intake just a few days ago.. it chokes and dies. try to keep it running (have someone else help you, one pours, one keeps the engine from stalling in the drivers seat) let it sit there for 5-10 minutes and fire it back up. BASK IN THE SMOKE, take pictures, laugh ect ect. if it starts misfiring, unplug the battery for 10 minutes and plug it back in.
my check engine light was flashing at me when I started back up (it takes a while to fire back up, and it will misfire somewhere) .. just give it a few thousand RPM's and watch the smoke fly.
if you have problems, call me lol.
DO NOT dump any seafoam into the intake if it stalls.. only pour while the engine is running. my cousin bent 14 out of 16 valves on his daihatsu charade (think honda civic) and he had to have it rebuilt. apparently liquid doesn't compress like air does.. go figure.
for those of you who can't detect that sarcasm.. get out moar.
edit: heres the steps you take-- (IF you decide to go with the throttle body method)
1. remove your little air box thingy right at the throttle body, it says "3.7L POWER TECH on it. (your throttle plate is right behind this box)
2. start the engine (make sure it's warmed up)
3. with someone in the drivers seat ready to give it some throttle, start to pour in the seafoam (the intake will suck it in, so don't worry about spilling)
4. as you pour and the fluid reaches the cylinders, it'll begin to stumble and choke (give it some gas!)
5. the more it chokes, the more you pour.. you're likely to have to put the pedal almost to the floor to keep it running
6. after the can is empty, release the gas pedal, if it doesn't die on its own, turn it off
7. sit around for 5-10 minutes and prepare to choke on smoke.. you can reconnect your air-box during this time
8. start the engine (it takes several seconds, but it'll start. try giving it little taps of the throttle to get some spark)
9. once its started, try to let it idle for about 10-15 seconds to recooperate
10. rev it up to about 3-4500 RPM's, letting off as you reach said RPM's, and revving again to get the seafoam out of the intake, into the cylinders, and out the exhaust. If it begins to misfire or the check engine light starts flashing and it's running extremely rough, let it idle for about 1 minute as it expels some of the seafoam (you're literally flooding your engine.. it'll come back to life) turn it off, disconnect the battery FOR 10 MINUTES, if you're really worried, you can pull the spark plugs out and make sure they're dry.. but they'll dry on their own after sitting for a few minutes. re-connect the battery, fire it back up, it should be running normal. if not, let it dry out more.. if it still refuses to fire, you may need new spark plugs. mine fired right back up and ran like normal.
11. watch in amusement (or in horror) as your KJ smokes like an old fashion freight train