DroppedGS

90-94 LS400 Fuel Injectors/Rail Interchangeable with the 95-97LS400? Two of my Fuel Injectors are not pumping out fuel. I found used Fuel Injectors / Fuel Rail from a 97 LS400 that had 40k, and the guy that was selling them to me told me that from 90-97 the Fuel Injectors/ Fuel Rails are the same.. And in 98 they change. How true is this??

persian451

maybe this site will be of use to you

www.lextreme.com, or http://lextreme.com/allgo.html

they have fuel pump upgrades and fuel injector upgrades designed for FI

DroppedGS

Thanks.. Im not trying to upgrade performance I just want to know If 95-97 LS400 have the same Fuel System.. Fuel Rail/Injecters as the 90-94 LS 400.

persian451

i'm sure you can post the question on that forum, i'm sure someone would definiteyl know over there

Lexushead

I have a 1992 LS400 and I replaced all 8 injectors with a 1996 injectors. I had to go to NAPA to buy injector kits, o-rings. I didn't replace the fuel rails. My old injectors were fine but the dealer told me that one of the injectors were bad. $3k to do the work with 8 new injectors. I replaced with used ones at home that costs me 239.00. I wasted 100.00 of diagnostic test. The problem was a spark plug wire shorting.
235,000 miles.

DroppedGS

Thanks Alot for the Reply's!!

DroppedGS

Are the 1995-97 Injectors shorter than the 91? My mechanic says the 97 Injectors are shorter and he doesn't wanna put them in because there not going to work? How did you get those 96 Injectors to work in your 92? He says it might leak fuel because there to short.

Lexushead

Yes, they are shorter but it will work because it is working for me since I installed them sometime in November 2002; about 13,000 miles later. Don't forget to buy injector kits from NAPA because you will need it. The old seals will crumbles and o-rings and gaskets are hard. The kits were 12.00 per and you need 8. Costs me around 96.00. I didn't think they would work either when I compared the two but they do. I don't have alot of money so I do alot of my own repair.

My trunk now won't open, the key dosn't work and the pull lever doesn't work. My radio fades to statics after a few seconds of turning it on. If you have any suggestion I appreciated. I will tackle the problems when it gets warmer. Suppose to snow tonight. April 8th, 2004.