hxcjohnny
NAXJA Forum User
- Location
- North Carolina
like the title says, are injectors from 1990 to 1991 interchangeable?
Official answer:
Fuel Injection
Model Year Part # Color Fuel Pressure Static Flow
'87-'90 53003956 Dark Tan 30/39psi 18.6lb/hr
'91-'93 33007127 Brown 30/39psi 21.0lb/hr
'94-'95 53030343 Tan 30/39psi 21.0lb/hr
'96-'99 53030778 Grey 49psi 23.2lb/hr
'99-'01 04854181 Blue tip 49psi 22.5lb/hr
If you have any of the two-piece body crimped injectors, throw them away.
A**uming you have access to a free set of injectors? Wanting to use 91 injectors on a 90 or the other way around? My 90 had the two-piece leakers OEM, not sure how long that construction method lasted.
When they to the HO in 91 I beleive the fuel pressure spec went to 45psi.
Should work fine, but PLEASE inspect the injectors, and throw them away if they are the early two-piece bodies, they are just waiting to burn your XJ to the ground.
http://image.jpmagazine.com/f/11305278/154_0811_01_z+preventing_engine_fire+leak.jpg
X2 SouthbayInjectors on ebay. You can get a set of 8 Ford #19 yellow top injectors from a 5.0 reconditioned for about $120. Just put a set in my 1990 4.0. They are nice and no worries about having the 2 piece injectors waiting to start leaking now.
these guys are running a special on the ford 19's.
http://www.precisionautoinjectors.c...435FCA8AC9B26F33EC3.qscstrfrnt04?categoryId=3
I got a set from Precision last week. They were flow matched and a set of 6 were delivered to my door with new O-rings for $89.95 including shipping and no core charge/return. Made a pleasant increase in idle quality and performance. Tech support was top notch.
Is there more detailed info on the 2 pc injector leakage problem? It's the first I've heard of it but, if they are prone to failure/fire I'll pick up a set of orange tops for my '90 on the next trip to the JY.
You could use the #24 blue tops and the engine comp will adjust the injector pulse to tone it down. I doubt you would see any drop in performance if you decide to use the #19 yellow tops though. If you are not planning any major engine upgrades, I would go with the #19s.