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Old 10-19-2013, 02:05 AM   #1
Join Date: Oct 2013
Posts: 2
running rich 2.5

New to my first Jeep...Story...Jeep was sitting for 1 1/2 years, had no spark...Replaced ICM....Runs rich.... I tested all sensors and they tested ok, one thing was that the fuel injector was stuck so I removed the screen and gently pried up on the shaft inside of injector to free it, I connected a 1.5v battery to it to see if it was moved up and down.
What I was wondering is, could the injector now not be sealing so I am getting to much fuel? The reason it was parked was because the previous owner couldn't get it running....I think that it just needed the ICM, I also replaced the wires, cap,rotor,plugs.
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Old 10-19-2013, 07:09 AM   #2
Join Date: Jan 2013
Posts: 312
Year? Throwing any codes?

1991 YJ 4.0L, K&N air filter, SS headers, 31X10.5, Congo Cage, etc...

When all hope is lost, and you have run out of options, you can always break out the "HOLY HAND GRENADE"!!!! It may not fix it, but you will feel a lot better.
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Old 10-19-2013, 12:12 PM   #3
Join Date: Oct 2013
Posts: 2
It is a 1990
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Old 10-20-2013, 02:22 PM   #4
Join Date: Jan 2010
Location: Las Cruces, NM
Posts: 2,303
I would replace the TB injector and also check the fuel pressure, the temp sensor needs checking too, if its faulty it can make the engine run rich...
Also get yourself a manual...
What temp is the engine running at, is there a thermostat in it?
(Sold)1994 Jeep Wrangler 2.5L, Bestop top
/w steel half door and slider windows
5 speed, 2.5" lift, 31" tires,rack lights
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