Sudden unexplained fuel use increase

[cliddell93 Lurker Find all posts View Profile Close cliddell93]

Hi all, excessive fuel use question. Up until about Jan/Feb fuel use in my 2001 auto kzj95r Prado had been around 10.5 to 12.5 per 100 depending on driving style. Then, within the space of a tank or 2 it sky-rocketed to as high as 16.5 per.
Only thing changed/done to vehicle in that time was attempt to adjust the handbrake.
Have since fully reversed the adjustments done to handbrake. Have also given full service including fuel filter, and have fitted new injectors. Have also checked brakes for sticking/grabbing callipers.
Best economy I can achieve now is a steady 13.5 per driving like an old man, not loaded.

Anyone got any suggestions as to were to look next?

Cheers

[johnhsv Lurker Find all posts View Profile Close johnhsv]

gday
yes i have the same issue i have had the vehicle since new & Im a mechanic i have only done 210k i have even pulled injection pump out & had it checked its perfect im about to do a compression
test & see if that shows up anything I used to get 10 per 100 towing a small van around 12 to 14 now im kidding my self average 16 & towing can get to 20 yet no black smoke or soot