Benthos
NAXJA Forum User
- Location
- Northern CA
99 xj, 230k miles.
Researching injectors and CAN'T BELIEVE in the forums there seems to be no real consensus.
50% of the posts about bosch remanufactured 4 hole "upgrades" are from upset people who bought them from reccomended rebuilders like Precision or K-suspension and had nothing but problems. They range from leaks, being DOA, or just severely worse performance. The china knockoffs run jeeps, but on the bench tests they are all over the place.
The only actual reliable source for any reaxy to go injector I could find is the new Siemens, at around 350 for a set. It's listed as OEM but is noted to be 4 hole.
https://www.fiveomotorsport.com/bosch-jeep-fuel-injectors-xf2e/
1) Did the 99 xj come with a 4 hole injector as oem?
2) Am I better of testing and cleaning my current injectors? If so do they have pintles and micro screens? If so where does one get those parts?
3) Send them out for a rebuild?
4) Are the issues with the reman bosch 4 holes smoothed out and I should just go with them from k-suspension or the like?
I am interested in 4 hole only for the reported smoothing of the idle. I fear if not oem they may clog easier, fail sooner, or while they work the ecm will just never play as well with them as oem.
I'm doing the exhaust manifold crack and since I have a slight otermitant vibration at low idke figure I might as do the injectors and 02 sensor while there. I've been running it with a huge split in the manifold for prob 150k miles so I suspect that's my problem.
But while there I want to do the injectors right.
Any thoughts are appreciated.
Thx
Researching injectors and CAN'T BELIEVE in the forums there seems to be no real consensus.
50% of the posts about bosch remanufactured 4 hole "upgrades" are from upset people who bought them from reccomended rebuilders like Precision or K-suspension and had nothing but problems. They range from leaks, being DOA, or just severely worse performance. The china knockoffs run jeeps, but on the bench tests they are all over the place.
The only actual reliable source for any reaxy to go injector I could find is the new Siemens, at around 350 for a set. It's listed as OEM but is noted to be 4 hole.
https://www.fiveomotorsport.com/bosch-jeep-fuel-injectors-xf2e/
1) Did the 99 xj come with a 4 hole injector as oem?
2) Am I better of testing and cleaning my current injectors? If so do they have pintles and micro screens? If so where does one get those parts?
3) Send them out for a rebuild?
4) Are the issues with the reman bosch 4 holes smoothed out and I should just go with them from k-suspension or the like?
I am interested in 4 hole only for the reported smoothing of the idle. I fear if not oem they may clog easier, fail sooner, or while they work the ecm will just never play as well with them as oem.
I'm doing the exhaust manifold crack and since I have a slight otermitant vibration at low idke figure I might as do the injectors and 02 sensor while there. I've been running it with a huge split in the manifold for prob 150k miles so I suspect that's my problem.
But while there I want to do the injectors right.
Any thoughts are appreciated.
Thx