1mzfe fuel consumption at 15+L/100km

[Idontlikepetrolprices]

Hey guys!

I am sort of cheating here, I actually have a 2003 avalon, but the same engine is squeezed into the camrys and there's more people in here so I figured I would rather post here,

My 1mzfe is getting 15+L/100km(Dash is reporting 16.9L/100km but when I measured it myself it was less), and I'm not sure why. 

Fuel trims are mostly fine except for idle, where there is an 8% longft on the front bank. Ive tested it for any big vacuum leaks, replaced the rocker cover, changed the injector rings, and cleaned the injectors a little bit.

The only thing I can think of is that I have a faulty injector, for three reasons. One, the consumption, and two, the fuel trims are only a bit weird in one bank, and three, the hot starts. When turning off and restarting the engine at hot, it seems to instantly rev to 300 then stumbles on itself, which I'm guessing is because there is excess fuel in the chamber, or fuel has leaked past an injector. This is actually the only issue in the car that concerns me, because it starts very very dodgy some times, gurgling to 800rpms when hot.

Also on cold starts it shoots to 1600 a lot more aggressively than any other car I've driven(maybe its sending too much fuel in?)

As for other things, as far as I can tell it isn't burning any motor oil, haven't lost any in 4 months. I don't smell any petrol on starts or when driving, maybe a tiny bit occasionally but its hard to tell, and I don't drive like a madman, Im mostly under the limit because I'm trying to save fuel.

Here's what I've done so far:

Air filter

Plugs, coils, coil leads (Had a bad misfire due to 2 bad ignition coil leads, it was actually reporting better fuel economy before I replaced them)

Oil

Maf cleaned

Disconnected battery and did idle relearns

Replaced the O2 sensor on lean bank

Let me know what you think, I've ordered an injector cleaning kit to try clean them out more properly, also if I pressurize them and they leak then I will know what could be the issue, but other than that, I don't know what to do. 

Edited March 28 by Idontlikepetrolprices