Jeep is a 94 4.0ho aw4
Ive replaced the cps tps and the iac is clean
Checked vacum leaks
Have ford injectors out of my bronco
Cap rotor plugs and wires fuel pump fuel filter have been replaced recently and jeep has 190000miles normally at high way speeds temp is about 150 and at sit and go traffic hits about 190-210 i have hood vents and changed the stock electric fan with a more powerful one on a toggle switch

Jeep trys to die at higher speeds but keeps it self alive
Jeep dies at idle trys to keep itself alive but isnt able to do so.
Theres no back fire
When sitting at idle the idle starts to drop abit from 750 then get to about 600-500 and dies but only sometimes that happens other times there are no warnings
Jeep drives excellent besides that problem and feels strong
WTF do i need to replace? Lol
Before i start replaceing are there any test i can do?

I did pull the plugs and they seem like there getting slightly too hot
I was running a full accell ignition
Replaced the plugs with autolites (only thing in stock besides bosch +4 nty)

I cant afford to keep replacing everything me and my wife had a son 2 weeks ago and now our daily driver is taking a **** on us lucky us

 

Anything guys?

 

Do you have access to a fuel pressure gauge?

 

What is the condition of your battery? Have it load tested to make sure its good.

 

Battery is good n altenator is good sitting just above 14 while running i havnt checked the fuel pressure yet however u can push the little nozzle and it shoots far as hell

 

Allready checked codes

 

Hmm. I believe the acceptable range is between "well there goes that shirt" and " hey I hit the neighbor's cat"

I was working on an Impala a few days ago that had symptoms similar to yours, turned out the fuel pump was stalling out for a second or two here and there. Could see the fluctuations in the pressure gauge when it idled. I'd check it even if only to rule it out.

 

?
???? its free dad....http://jeep-xj.info/HowtoECUcodes.htm

 

Take it to a shop (not auto zone, not a pocket scanner) and have them read the codes. They will tell you exactly where it is hurting.

 

Well replaced the fuel pump and filter checked all vacum lines and replaced distributor , only kicking off at higher temps (about 200) thinkin having a vapor lock issue , no check engine light on. Have ford 19# injectors popped hood , now that i pushed it to the mickyd parking lot across the street fuel pressure good at the rail N i can save it if i hit the gas while shes dying so deff a fuel problem and only thing left is these injectors

 

By the way i just replaced
Fuel pump
Fuel filter
Distributor

 

even if theres no check engine loght on dont mean there might not be a interment issue that is stored in the memory of ecm checking codes still a suggestion if any thing it can show whats not a issue ...just saying...

 

Yeah i gotcha, i tried what that site suggested and nothing flashed

 

on off on off on ...correct ....when keys on theres a light there correct

 

Yes there is a light and does its thing to show its workin

Correction i finally did it right and made a vid. Just incase i messed up but i read
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