Hey guys I have a 91 pickup 3.0 auto 2wd ext cab. I just started driving it again(sit for 2 years) I'm getting around 200 miles to a tank is that normal? I changed the oil, filter, air filter, fuel filter, wires cap and rotor about a month ago, didn't help. The CEL is not on. I'm thinking the oxygen sensor may have something to do with the millage?? Any ideas?? Thanks

 

Very possible that the O2 sensor is malfunctioning or gone out. You can get a new OEM one from Rock Auto for around $50. There hella expensive everywhere else. I would also run some Seafoam through it and add a little to your gas tank if it has been sitting that long.

 

I'm going to order a 02 sensor and try some seafoam hopefully it helps.

 

mine was horrid tell I fixed it by modding it

got 500 to a tank on 35's

befro was like 270

 

i currently get around 20-24mpg so my tank lasts me between 300 to 350 miles... depends on how much city or highway driving i do. the motor is new, probably 40k miles on it. i use 20-50 castrol non synthetic. ive done the catback with a magnaflow, and an ebay intake. made a huge improvement.

im getting ready to do the headers on it and see what that nets me. ill soon look to do some balanced injectors for it and now im being convinced to remove the egr system as it helps out a good deal so i am told.

 

pop on a 7mgte afm and then add a apexi sfac/neo


if you want power the stock cams are so small it's funny

if you find set of camary cams there bigger then stock they do swap in

 

apexi neo in a 94 4runner - YouTube

my old runner

 

oh yea man! its always a learning curve... trial and error and so on. my knowledge is based on experience, either by my that of my own or others that have taught or shared it with me.

interesting.... didnt the camry 3vzfe have dual cams? or 24 valves or something? what year camry are the cams in?

tell me more about this setup? what exactly does it do, how do you set it up, what gains can you see from these, and whats it run?

 

Fixed it for you.



I have less than no love for the 3vze. They are a severely over complicated and about as user friendly as a cactus toothbrush. The only upside to a rig equipped with a 3vz-fe is that a 5vz-fe bolts right in it's place with no mods.

 

yea, i know the 3vz is about as pure a race breed horse as a mule but, any little bit helps until i swap in my dream swap.

the inspection cutoff here in cali is 74'. so i have no hope of ever making it. my only hope is to go register this truck in a neighboring state or legally swapping in a LSx motor with a bar'd number.

 

From what I was told one of each cam swaps over but ya have to buy a cams gears to sort it out

I would just get set of cams from colt cam's they do a re grind for them

Colt Cams - custom camshaft grinding


but my setup was

89 supra afm with stock mk3 box with new cold air ducting (larger) k&n drop in
fuel reg
apexi neo
dough thorly headers
2.25 to 2.5 exhuast maganflow 2.5 chmaber muffler and 2.5 magnaflow 4 inc round
egr delete
e-fan
mk3 supra ignition coil
copper plug with supra spark plug gap
wide ban to tune it all


had a power map and gas saver map


see the 3 biggest issues the 3 slow had was

very very small cam shaft's that I never got to install since I sold the truck there got to be about 30 hp gain just from the cam shaft's with supporting mods there so small

22re sized afm

bad exhuast manifold design















truck was light and day every did not bleav me it was a 3 slow used to blow up diff's on every outing it was rather annoying

and twsited one shaft when I crack the housing holding the ring gear

power and weight (diff killer)

 

interesting build.... i appreciate the ifo you shared. im trying to map out my header install as it is. i know they are not a fun install... the afm is likely my next mod, as well as a AFR gauge and some balanced injectors from lce. gonna look into the rest of your mods and see if its worth shelling out the money... its a fairly healthy motor with little mileage on it so im sure its worth the investment.

 

you know, i bought this truck with the reputation of the 3.0 in the back of my head... but now after having it for 1 year, ive come to like this motor. they are honestly not difficult to work on if you take your time to do stuff right. yes, there are some engineering flaws like manifolds and some other bits but nothing that makes this a bad toyota product. power wise it was not the slowest v6 at the time it was released considering the competition in those days.

im gonna treat this motor right and keep reporting in on my modifications here too.

 

22 inc rims can do that lol



here is the front of my runner










have pic of it on it's side in river tank god the tree's caugh it I look over and I see a running water

 

ps just send your injectors out to be cleaned sadly you will run out of injector thou in less you get fuel regulator