So I've had this 85 4-Runner for a couple month's and I have tried the best types of fuel injector cleaner, and replaced the fuel filter and I am still having problems w/ starting it and it bogging down when I gas it. Also have put a brand new battery in it JUST to make sure. NOTHING! Can someone give me some tips? Possible solutions?

 

Try replacing the fuel filter

 

Mine does the same even after new plugs, wires, cap, rotor, good floggings, o2 sensor.

I'll be curious to see what is said.

 

check your TPS. also check your cold start injector. do a compression check as well.

 

A new O2 sensor fixed it for me.

 

Only I problem is I kinda need a diagnostic I guess b/f I go buying a bunch of parts I don't need. It's weird, if it has sat all night it'll crank right up in the morning, but if it's sat anywhere from 30 mins to 3-5 hrs it'll try's and try's to turn over and after a more than significant time it'll will sort of roll over into start mode, idle lower than normal for a few seconds and then come up to operating rpm's, weird.

 

If i recall i think 4crawler had the same problem- Here is some information on it, the real problem and and easy fix:

http://www.4crawler.com/4x4/CheapTri...shtml#FuelPump