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Unread 12-12-2013, 03:41 PM   #7036
skyj
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Quote:
Originally Posted by Randonexplosion View Post
Mine threw a code. And I swapped the coils to make sure the miss followed the bad coil. Maybe unplug one at a time till you find the one that doesn't cause a change? Are you sure it's a miss? On mine the engine shook pretty bad and I couldn't get it to rev over 3k in park.
I tried unplugging them and no change at all, only does it under load like with the heat/ac on. Its gets really bad when cruising at around 55mph. Cleaned throttle body and replaced plugs and o2 sensor im tired of throwing parts at it.

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build thread: http://www.jeepforum.com/forum/f22/skyj-eccentric-build-1467426/ '90 YJ 5.2 magnum MPI, AX15, NP231 SYE, Dana 30 4.56 open/ 8.8 4.56 detriot locker. 1" shackles
2" BL, 4" stretch all on saggy waggy springs.
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Unread 12-12-2013, 03:54 PM   #7037
Randonexplosion
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Thats wierd man. So with heat or AC off it is fine? Mine runs like a top now with 184k. I like these engines and they have a 4l60e behind them. I cruised 90-95mph back from Phoenix and still got over 20 mpg.
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Unread 12-12-2013, 03:57 PM   #7038
AmmitOsiris
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Quote:
Originally Posted by Randonexplosion
Thats wierd man. So with heat or AC off it is fine? Mine runs like a top now with 184k. I like these engines and they have a 4l60e behind them. I cruised 90-95mph back from Phoenix and still got over 20 mpg.
So what would a YJ with a 5.3 and a 5 speed get??

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Unread 12-12-2013, 04:11 PM   #7039
Randonexplosion
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Originally Posted by AmmitOsiris View Post
So what would a YJ with a 5.3 and a 5 speed get??

Because I Saved 15% On My Car Insurance
Doing 90-95? probably about 8mpg.

With correct gears it will do well. Mine does low 20s with 33s/4.10s and the 4 speed auto. 1950rpm @ 65... poifect
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Unread 12-12-2013, 04:27 PM   #7040
skyj
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Originally Posted by Randonexplosion View Post
Thats wierd man. So with heat or AC off it is fine? Mine runs like a top now with 184k. I like these engines and they have a 4l60e behind them. I cruised 90-95mph back from Phoenix and still got over 20 mpg.
Not always if im sitting there letting it idle its fine but as soon as I raise the rpms it starts to miss, and wont go above 3k like yours, but I was under the impression that was a safety feature. Its been like that as long as I can remember, but the miss has been going on for over a month and not getting any worse. I've tried almost everything except replace coils.
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build thread: http://www.jeepforum.com/forum/f22/skyj-eccentric-build-1467426/ '90 YJ 5.2 magnum MPI, AX15, NP231 SYE, Dana 30 4.56 open/ 8.8 4.56 detriot locker. 1" shackles
2" BL, 4" stretch all on saggy waggy springs.
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Unread 12-12-2013, 04:34 PM   #7041
Randonexplosion
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Not always if im sitting there letting it idle its fine but as soon as I raise the rpms it starts to miss, and wont go above 3k like yours, but I was under the impression that was a safety feature. Its been like that as long as I can remember, but the miss has been going on for over a month and not getting any worse. I've tried almost everything except replace coils.
I agree, you'd think the rev limiting would be caused by a limp mode from a code being thrown. Are you sure there is no code or there is just no "service engine soon" light? You definitely want to know a coil is bad before you replace it. $80 a piece at Napa/Carquest. The dealership wanted $218
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Unread 12-12-2013, 04:43 PM   #7042
skyj
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Originally Posted by Randonexplosion View Post

I agree, you'd think the rev limiting would be caused by a limp mode from a code being thrown. Are you sure there is no code or there is just no "service engine soon" light? You definitely want to know a coil is bad before you replace it. $80 a piece at Napa/Carquest. The dealership wanted $218
Yea no code I have one of those obdII code readers with an app on my phone and I monitor it frequently no thrown codes just a drop in rpm while driving I just need to do dome more research on what everything else means on the diag on the reader. I even started a thread on trailvoy.com and no one seems to know what to fix either. Everyone just tells me to clean the tb and change plugs.
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build thread: http://www.jeepforum.com/forum/f22/skyj-eccentric-build-1467426/ '90 YJ 5.2 magnum MPI, AX15, NP231 SYE, Dana 30 4.56 open/ 8.8 4.56 detriot locker. 1" shackles
2" BL, 4" stretch all on saggy waggy springs.
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Unread 12-12-2013, 04:44 PM   #7043
calvynandhobbs
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I don't have a GM, but my F250 started missing sporadically in the cold weather. It threw no idiot lights at me, but I scanned it anyway and there was a code that gave me cyl 2. i swapped the coils around to see if I could get the miss to change and it did about a month later. There was a hairline crack in the coilpack and it only caused a miss in cold temps. No idiot light does not mean its not throwing a code.
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Unread 12-12-2013, 04:44 PM   #7044
RikRotorhead
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I sure hope they didn't Hollywood the crap out of episode 2. It looks like they may have.....

https://www.youtube.com/watch?v=jGEERBDelH8#t=36
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Unread 12-12-2013, 04:45 PM   #7045
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You posted while i was typing.
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Unread 12-12-2013, 07:14 PM   #7046
Tom95YJ
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x2!
Jeeze. It's been into the negatives at night here. Today's the warmest day in over a week at 18* for the high.

Freaking 'tards.

Cheers
Same here, I find it that the Media had to inform people how to live. However it is just common sense ! Oh wait common sense is not very common anymore ! Thus another reason I belive we should have to take IQ, and put people in certain scenarios to test their ability to survive and think on multiple levels before they are allowed to vote or breed .
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Unread 12-12-2013, 08:31 PM   #7047
AmmitOsiris
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Quote:
Originally Posted by Randonexplosion
Doing 90-95? probably about 8mpg. With correct gears it will do well. Mine does low 20s with 33s/4.10s and the 4 speed auto. 1950rpm @ 65... poifect
What if someone had an ax15 behind one..

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Unread 12-12-2013, 08:56 PM   #7048
Randonexplosion
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What if someone had an ax15 behind one..

Because I Saved 15% On My Car Insurance
What exactly are you wanting to know? The AX15 is geared a hair lower but they are pretty close. Check out the knowledge section on Novaks website.
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Unread 12-12-2013, 09:20 PM   #7049
Randonexplosion
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Originally Posted by RikRotorhead View Post
I sure hope they didn't Hollywood the crap out of episode 2. It looks like they may have.....

https://www.youtube.com/watch?v=jGEERBDelH8#t=36
Look pretty entertaining. Doubt it will be as good as the first one though. Hard to proceed without Leonidas.
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Unread 12-13-2013, 02:12 AM   #7050
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Hung our with the main man A to the Z today! My Jeep its florist! Ours the moon bag for sure. He did the u bolts and stuff. I love everyone one with yjs bit not with jks. But securely i want to jump ajk and scream jks suck!!!! Good day to you sir
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