I would almost lay $5 down that you have something pinched under the intake manifold, or the alignment dowels are stuck causing a rather large vacuum leak. I had the EXACT same issue when I did my header. Ended up I was torquing down on a crooked dowel and it was sucking air past the throttle body causing my idle to sky rocket. I mean you didnt do anything except put a header and bigger injectors correct? the injectors I would imagine would make it run rougher until you match the extra fuel with more air. my $0.02.......
Nothing yet. Had a rough weekend.
I am going to completely take the intake manifold off tomorrow and start fresh. It's gotta be a vacuum leak do to the fact that I didn't touch anything beside swap the headers and Injectors. I put the old injectors back in with no fix
95yj- are you referring to the alignment dowels coming out of the block,?
Wouldn't a leak on the intake manifold cause a lean mixture causing the engine to die. Not rev higher? This happened to me on my 4.0 head swap. The intake manifold was hitting the headers in two places not allowing a proper seat. Thus sucking in air like crazy. It would not idle unless I kept feeding it the gas.
89 YJ.. My first jeep and I won't let it go. ▀||||▀
Current Project: None... I disgust myself.
[URL="http://www.jeepforum.com/forum/f22/my-yj-build-adventures-thread-1356941/"][SIZE="3"][B]BUILDING THE YJ MY WAY[/B][/SIZE][/URL]
If its the intake that is leaking the ECM would see a lean condition and add more fuel since it cant control the air getting in there. Correct me if I am wrong someone. That would mess vacuum up also and cause it to be low as far as the ECM is concerned. Break out the carb cleaner and spray it around the mating surfaces and see what happens.
1995 YJ. 2 inch BDS Spring lift. 1 inch shackle lift. 1.25 inch JKS Body Lift 33x12.5x15's. Engo 10,000 pound winch.
[QUOTE=Magnum;14117863] I gave the Jeep the required offering of $$, sweat, and blood, and everything works fine now. -- Jim[/QUOTE]
[QUOTE=ldso;16498409]. It started with a $200 axle, and a few thousand dollars later I was done :)[/QUOTE]
[QUOTE=Luuca;16122017]diagnose the real issue before you start going all Obama on it - spending mad cash you'll need for other important things.
Ask me how I know...[/QUOTE]
[QUOTE=Overhead;17658665]this is also my second set of RC springs this year. I'd rather spend the money again and get something that will last.[/QUOTE]