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Old 11-16-2013, 05:07 PM   #1
Join Date: Nov 2011
Posts: 5
95 yj 4cyl what did i do??

found the fuel rail leaking, rusted out. found a used one and decided to upgrade fuel injectors per the posts. did so, check engine lite coming on now. I have changed in order MAT sensor o2 sensor and MAP SENSOR. check engine lite on runs good at high speed but very rough at low starts and idles great. any thoughts?? thanks rick

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Old 11-16-2013, 05:19 PM   #2
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I just replace my injectors too. Did you replace the o-rings on the new injectors? Also one of my elec connectors for the injector was loose and CEL came one. All I did was push it on hard gave it a dab of super glue and all is good now. I would start with the connections first.

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Old 11-17-2013, 07:54 AM   #3
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thanks, tried pulling them off 1 at a time, all are ok
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Old 11-17-2013, 11:27 AM   #4
Join Date: Jan 2013
Posts: 212
You said your CEL was on. What codes is it throwing?
1991 YJ 4.0L, K&N air filter, SS headers, 31X10.5, Congo Cage, etc...
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Old 11-17-2013, 12:05 PM   #5
Join Date: Nov 2011
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it's running again! changed out the coolant temp sensor and it is finally back to where it was b4 fuel rail leak. should be good for 6 months or so right?? thanks
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Old 11-17-2013, 12:22 PM   #6

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Its a YJ and you can only hope for 6 months!!!

89 2.5 TBI, 4" RC lift, 1" Booms, SYE, Adams Driveshafts front and rear, Ford 8.8 with 4:88s, BFG 33X12.50X15, and a ton of other stuff.

AF Jeep Club Tail Number 184
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