ran into some issues of the engine would running like crap, backfiring, etc. I'd start the jeep up between 8 and 10 and it would run fine till about 2-3 pm in the afternoon then start acting up.
Very similar to vapor lock. I knew I had a gas leak from the tank so pulled out the sender and re-sealed up the connectors and routed the lines to eliminate some restrictions. I found a fitting I had made to convert the hardline to AN was very loose and nearly fell off.
It appears I used silicone to hold it on, I don't remember that it might have been a temporary fix that I forgot about. Anyways do not recommend silicone for anything near gasoline. Removed the hard line and used Earl Vapor Lock hose. Pretty sure I have pics and will add later.
I also knew I had an exhaust leak between the header and the down pipe. I could never get the crushable donut to seal up so went to using the v band clamps. There are very good and the only way to go. But required me to pull of the header so not a motivation builder here.
But got it out and welded to the header. I was lazy and left the flange as it would have been a royal PIA to cut it off.
I did find out why the donut never did seal up as the header was 2.5" and the downpipe was 2.25" so they never quite lined up correctly. But reinstalled and everything is tight and well secured. No more exhaust leaks.
I also cleaned out the intake and throttle body while it was all off and installed and new IAC sensor. Hoping since I re-routed the valve cover hoses they will stay a bit cleaner.
So then my accident I found the fuel injection manual from painless and was re-reading it and noticed the fuel injector specs didn't seem to match up with what I had. Years ago I had ended up using the yellow mustang injectors on the stock engine and for some reason never checked with the new system.
Seems they had too low of flow. So I ended up on doing some research and ended up on ebay and purchased 1 wrong set with the newer connectors before getting a set of the pink colored body injectors.
So got everything buttoned back up and running and we went and ran some trails a few weeks ago and I started around 9:30 and ran it until 8:00pm that night with none of the previous issues. Other then it running rich as I watched the A/F meter everything did great.
So have some fuel map changes to map but otherwise seems the issue has been resolved. Can't say for sure what the problem was but seems like it was a handful of small issues that all added up.
Also added 1 of these crates in the back for storage. They are pretty cheap compared to the Pelican cases and so far are holding up well. They have 4 plastic latches that hold the lid on, I wanted one end to be hinged so I added a bungie bolt to each side and over the top and seems to be doing the trick. Even holds the lid up when open! Will add the stainless hinges replacement they offer for something a bit stronger.