1990 fj80r 3fe Landcrusier fuel economy

Joined
Aug 16, 2022
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Australia
He guys
I have a 1990 80 series 3fe petrol 4.0l and wondering about fuel economy
I have a 90 odd litre tank and currently getting about 300km out of it. Wondering what the problem could be I’ve tried changing oxy sensors and dropping my revs down a bit a nothing has changed
Someone helpppp
 
Joined
Jan 19, 2005
Messages
3,535
Location
South west utah
Search is your friend, here is a great tune up guide posted by @jonheld Jon is a 3fe guru.

Download this guide and do the tune up.

General Tech - 3FE Tune Up Info - https://forum.ih8mud.com/resources/3fe-tune-up-info.90/


Here is a nice kit for all the parts.


If a good tune up doesn't help than check the valves and do a new fuel filter, fuel pressure regulator, and fuel pressure damper thing and I bet you see a noticeable improvement.
 
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