Under powered 95 yj with a 2.5L - Page 6 - JeepForum.com

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post #76 of 116 Old 02-08-2014, 11:19 PM Thread Starter
Firemandan
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1979 CJ7 
 
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Quote:
Originally Posted by bedwards24676 View Post
I've been following your thread and Stick with Que he will help you find it. It's just very similar to the problems I'm having. After a lot of trouble shooting and replacing some sensors. I did the unplug injector test. To find out I'm only running on 3 cyls. Misfiring when I get to 3000 RPMS and no power. My injectors are firing but nothing is getting through my #4 injector. Unplugging them was the only way I would have found out. Like I said they were all firing. Que will stick with you and y'all will figure it out. It was just a quick suggestion. Good luck.
Bedward, I'll check it out and see what happens, I gotta work sunday but I'll be home Monday morning and give it a try and see what happens and give an update after I do it. Thanks for the tip.


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1995 YJ
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post #77 of 116 Old 02-09-2014, 12:31 AM
bedwards24676
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Quote:
Originally Posted by Firemandan
Bedward, I'll check it out and see what happens, I gotta work sunday but I'll be home Monday morning and give it a try and see what happens and give an update after I do it. Thanks for the tip.
Sounds good only takes a few minutes and cost nothing. Hopefully you can find your problem.
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post #78 of 116 Old 02-09-2014, 02:52 PM
Que89YJ
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Did it work?

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post #79 of 116 Old 02-09-2014, 04:38 PM Thread Starter
Firemandan
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Haven't checked it yet, at the station today.
Gonna give it a try first thing when I get home in the morning.

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post #80 of 116 Old 02-10-2014, 01:53 PM Thread Starter
Firemandan
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I did the test like you said bedwards, they all made the same miss. all 4 checked good.

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1995 YJ
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post #81 of 116 Old 02-10-2014, 02:42 PM
bedwards24676
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Quote:
Originally Posted by Firemandan
I did the test like you said bedwards, they all made the same miss. all 4 checked good.
Well that eliminates that. Hopefully you will find that ghost soon. Good luck.
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post #82 of 116 Old 02-10-2014, 04:00 PM
Que89YJ
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Check your codes again. Just curious

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post #83 of 116 Old 02-10-2014, 04:25 PM Thread Starter
Firemandan
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Just pulled the codes and I'm getting 27.
I was thinking it could be from me unplugging them.

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post #84 of 116 Old 02-10-2014, 05:05 PM
Que89YJ
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Make sure to disconnect the battery. Yep. I agree.

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post #85 of 116 Old 02-10-2014, 10:12 PM
bhamdan
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go get sensors and sending units from the dealer on academy drive. the ones from advance ended up costing me more money chasing down other things because i thought they were working.
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post #86 of 116 Old 02-10-2014, 10:41 PM Thread Starter
Firemandan
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Quote:
Originally Posted by bhamdan
go get sensors and sending units from the dealer on academy drive. the ones from advance ended up costing me more money chasing down other things because i thought they were working.
The dealership on academy ?

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post #87 of 116 Old 02-10-2014, 11:14 PM
bhamdan
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Quote:
Originally Posted by Firemandan View Post
The dealership on academy ?
jeep dealership on academy drive in bessemer is where i get my sensors.
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post #88 of 116 Old 02-11-2014, 11:10 AM Thread Starter
Firemandan
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Que, disconnected the battery and checked the codes again. Nothing showed up other than the normal 12 and 33. Still sputtering at 3000rpms.
Something I didn't mention but should've.
Out of gear and revving up @ 2500rpms the shift up light comes on but goes out past @2600rpms.
Don't know if this is a signal of a problem or anything.

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post #89 of 116 Old 02-11-2014, 11:40 AM
Que89YJ
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Is the cold start issue the same still too?
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post #90 of 116 Old 02-11-2014, 12:33 PM
bhamdan
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Have you changed the tps or o2 lately? I had similar issues with no codes. Replaced those and all is well.
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