jeep 4.0l base idle adjustment (same process for most early EFI) 

Deadset Legend 👌 I’ve been chasing a random stall issue when coming to a sudden stop for months now on my Cammed Jeep. Can’t believe it was that simple 🙏

89 xj 132xxx, thank you thank you. cleaned it, it's better, but you saved me the trouble of making my own screw.

Thank you it ran better after I did what you said.

Thanks for posting this. I have been chasing an idle speed issue in my '01 TJ, which has started stalling from time to time. I will definitely give this a try...

Thanks so much for this video! My jeep is having the same issue and trying this now.

With love, keep up the good simple instruction. God bless.

Awesome video. Thanks

Omg thanks so much!!

thanks man! been having high/low rpm fluctuations will give this a shot maybe up the rpm on my girl to sound like she's alive and not about to die on me

Would I need to do this when installing a 4.0L head on my 258 bottom end I wend efi out of my 2000 tj but I have a sputter on take off then once I get over 2k rpm it seems to be a bit better and idle seems a bit rough nothing crazy.

Would this problem cause higher idle and stalls when trying to reverse or 1st

I was wondering if it would be possible to turn the screw around so you don’t have to keep pulling the throttle body off. My 92 XJ idles at 500 rpm and it hates starting and always stalls out when cold.

Hey have a couple quick questions on tuning the computers in the 96-98grand cherokee 4.0. Can you shutoff all auto codes for the trans have a 97 with a ax15 swap and wondering if i can get the auto computer to stop trhowing codes Thanks

My 2006 jeep wrangler I have cleaned the throttle body I have a new idle air control I put on a new map sensor and the other idle sensor on the throttle body . I put it all back together some times it idles at 1200 sometimes at 600 and sometimes surges up and down from 600 too 1200 usually when I turn on the ac never get a check engine light any help would be great

Put feeler gauges in the space get it to idle correctly then do the math .010 is about half turn on the screw

Is that a stock T.B. on your Jeep or did you do anything too it ? I have a pretty much stock 97 Jeep G.C. with the 4.0. ( Home made CIA ) which really woke up the Jeep, high flow cat. & muffler. Like an idiot I hogged out the bottom of T.B. too match the intake. I think it was like 2 mm but CAN'T REMEMBER, It came out great but I lost my LOW END. Mileage didn't change it still sucks but she pulls as good as a 4.0 will in the higher RPM range now. Thinking about getting another T.B. & putting it back to stock & another thing she only ever ran good on 89 Octane since new. 87 would ping up hills & it had pretty much no power, worse on gas also. No matter what I did too it she ran terrible on 87 since new, dist. plugs, wires, colis, dist. cap & rotor, ect... I use nothing but NGK parts now but she still hates 87 Octane ? My 99 Cherokee with the 4.0 didn't care about the grade of gas, CIA or anything I changed on it always ran just the same, WEIRD. Never had any problem with idle, I keep up on maintenance BIG TIME with this Jeep. It has 196,545 miles on her. Also put slightly bigger tires on it 235/75/R 15's it just looks better. I liked when you popped your hood & said " YOUR'S WON'T LOOK LIKE THIS " LMAO. Thanks for the Knowledge Sir, Henry from N.E. PA.

What map sensor your using?

What about that boost set up?? Tell more!!

I replaced the TPS on my 03 Wrangler Sport and it made matters worst. I don't know what the heck at this point.