Another injector swap

[Truckedup]

Last month I swapped to 4 hole Bosch injectors on my 99 XJ and it made a small improvement.
Today I did the 4 hole injector swap on my 97 .This Jeep has 108,000 miles and was a bit doggy and had a odd vibration when accelerating from 2000-3500 rpm in any gear. But it ran ok and got good fuel mileage.
After the swap this Jeep is noticeably more peppy and the odd vibration is 95 percent gone.
Well worth the 90 bucks and an hour and a half of easy work.

 

[SolarBell]

Which injectors?

 

[Truckedup]

I bought both sets from this guy...http://www.ebay.com/itm/251338643115?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

 

[96cAmmedxjh.o]

just putt in the yellow ebay bosch injectors and my jeep loss power does the ecu.. have to learn them???

 

[MikeMc]

I'm thinking of doing the swap on my 89. Idle is a little erratic but it runs pretty good already. Just want to see if it can get better millage.

 

[SolarBell]

just putt in the yellow ebay bosch injectors and my jeep loss power does the ecu.. have to learn them???

Yes. The learned fuel trims will be different. Reset the PCM for fastest results.

 

[96cAmmedxjh.o]

yes i have reset... an still a loss of performance... four hole bosch injectors..... i thought i was gonna see a gain.. i have bout 30miles on them so far..

 

[96cAmmedxjh.o]

Think the issue is I have bought 19lbs and I'm prolly running lean... I have a h.o that has grey 23.2 in factory guess it my fault shoulda looked 1st

 

[Truckedup]

just putt in the yellow ebay bosch injectors and my jeep loss power does the ecu.. have to learn them???

Hmmm,Are all yellow the same because they work great in my 97.........Where did you get them?

 

[96cAmmedxjh.o]

eBay

 

[96cAmmedxjh.o]

It runs and idles the same... Feels like its holding back I'm going to install oems back in... Just to make sure I'm not crazy

 

[SolarBell]

What year?

 

[96cAmmedxjh.o]

96 xj h.o

 

[SolarBell]

Yes, 19 lb injectors are quite undersized and would cause issues.