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'86 Jimmy 4in Lift, 40’s, tons, 8.1 Swap- 700r4 said PNNNNN

This is not a dedicated trail rig, but does trailer to the destination usually. I am currently in the planning phase of doing a 52/56" spring swap, and getting back to being more road worthy.
I fixed my Jimmy tonight!!! Wait, that came out wrong...

Found a ground that was a bit to crusty. Cleaned it up and shot some paint on it.

Then started checking more sensors. Noticed that any time we made a change to the AFR, the numbers didn't actually change on the tune. So we pulled the O2 sensor and swapped in a brand new one. Truck immediately started to idle better.

So after a couple hot laps around the block, the truck really started to smooth out. No more rough idle. And no more need to 2 foot it to keep it running.

Cruised all the way back to my house like a champ. There is still room for improvement, but overall it runs the best it has in a while.

And a picture of my buddy and my brother doing some test drives before I got there tonight. (Mainly a shameless plug for my orange cage.)

View attachment 219541

I'm surprised that the O2 sensor made that much difference, I don't remember you describing this as only a closed-loop problem. Maybe I missed it somewhere.
 
And shame, shame, shame, plugging your cage like that. Everyone knows that cages need to stay unplugged or flaming busloads of nuns will be crashing into your house while you are asleep. :deal:
 
I'm surprised that the O2 sensor made that much difference, I don't remember you describing this as only a closed-loop problem. Maybe I missed it somewhere.
Yeah, I never really noticed that it ran bad after it warmed up.
 
Well, I'm 6'1 and 270-ish, but I've got more face fur than that.
I've got the face fur down too. I look even fatter without it.
5' 8" 180-ish but I'm solid muscle. Some of it is just squishy muscle.

Glad you got it run-ing good!
I have rock hard abs. You just have to dig for them a bit.
We have snow here now... time to start planning that wheeling mission trip! Lol
Dude, lets do it. We'll meet half way.
 
I got this figured out... I have to convince my wife that we should make a trip to Hannibal MO to see our oldest kid. Then I just have to convince her that we should take a trailer with us. THEN... all I have to do is convince her that we need to haul my rig out there... THEN... I just have to convince her that we should spend a day or two at this place called Tuttle Creek doing a little wheeling. And then you show up and it's just a big coincidence! Haha! Or I could just tell her the truth and see if we can make it work. :thinking:
 
I got this figured out... I have to convince my wife that we should make a trip to Hannibal MO to see our oldest kid. Then I just have to convince her that we should take a trailer with us. THEN... all I have to do is convince her that we need to haul my rig out there... THEN... I just have to convince her that we should spend a day or two at this place called Tuttle Creek doing a little wheeling. And then you show up and it's just a big coincidence! Haha! Or I could just tell her the truth and see if we can make it work. :thinking:
It's only a 9.5 hour trip...
 
I got this figured out... I have to convince my wife that we should make a trip to Hannibal MO to see our oldest kid. Then I just have to convince her that we should take a trailer with us. THEN... all I have to do is convince her that we need to haul my rig out there... THEN... I just have to convince her that we should spend a day or two at this place called Tuttle Creek doing a little wheeling. And then you show up and it's just a big coincidence! Haha! Or I could just tell her the truth and see if we can make it work. :thinking:


And while you're there, accidentally coordinate it so that we're making a Missouri trip simultaneously and we'll be driving very near Hannibal. Coincidences, coincidences. ;)

And then I'll hand you a TH400 and BAM, suddenly you're obliged to meet up with Greg and complete the delivery.

:popcorn:
 

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