Just bought a Yj recently, got some problems already hahah - Jeep Wrangler Forum

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Old 09-17-2013, 10:58 PM   #1
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Join Date: Sep 2013
Location: Montgomery County
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Just bought a Yj recently, got some problems already hahah

i been having fuel and white smoke coming out of the tailpipe. I did an oil change, looked like there was gas mixed with the oil and the oil prob had two quarts more in it than it should have. i replaced the spark plugs, wires, cap and rotor. Coolant looks clean. no leaks in and around the engine. i replaced the throttle positioning sensor and air temperature sensor. gauges are working and pressure looks good.

CEL came on and it read 15, 24, 27, 33.

I wiggled the distance sensor and that turned off the #15.

24 was the throttle positioning sensor and when i replaced it, that shut off.

33 is the AC clutch relay but i dont have AC in my jeep because its a 91 so thats exempt.

The problem is 27 which is the tbi injector does not respond properly. Im guessing this is the first injector that made this appear. Hopefully i can replace this injector and that will fix the problem with the fuel out the tailpipe.

Has anyone ever had this problem before? Or know if im doing something wrong and can lead me in the right direction?

some people have told me that it could be the head gasket or exhaust manifold gasket, or valves but if that was the case, shouldnt it be leaking coolant into the exhaust, not gas?

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1991 Jeep Wrangler Islander Limited Edition YJ 4.0 Fuel injected 6 Cylinder 5 Speed
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Old 09-18-2013, 12:39 AM   #2
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I'd check one of the specific threads for your Jeep. but anyways welcome to the forums

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Old 09-18-2013, 05:16 AM   #3
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and enjoy the forum! This is new members intro section. Post your questions in the YJ section for all the answers you need.
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Old 09-18-2013, 01:08 PM   #4
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Welcome to the Forum!
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Old 09-18-2013, 02:27 PM   #5
Thank You Veterans!

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As mentioned, that because this is the newbie check-in area, you may not get the answers you are looking for. I suggest you check out this forum area and post your questions there, I think you'll get a better response.

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Old 09-19-2013, 08:49 PM   #6
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