Hello guys. I have a '90 4runner with the V6. I just got my heads rebuilt with all new valves and put them back on along with new timing belt and water pump. It was running poorly when I discovered it had lost compression in a couple of cylinders...burnt exhaust valves. (That's why I got the heads redone)
I followed the manual EXACTLY through all of this.
I got it all together and timed correctly and it starts and runs. BUT, there is raw gas coming out the exhaust pipe...alot. I put a cup under the pipe to catch some, poured it onto the street and lit in on fire. It's definately raw gas.
-I immediately did a compression check. All were around 150psi(no open intake valves)
-Is this something that fuel injectors could cause? It would have to be more than one to spit out that much unburned fuel right? maybe I ruined the injectors when I had them out and wiped them off when cleaning the intake. Didn't see any dirt in the tips.
-I disconnected the little black connector on the top of the intake near the cold start injector line. Acts the same.
-could someone check my hose connections in the pic below? The book doesn't get specific. I noticed a couple of the lines had fuel and if they are in the wrong order, I was thinking I might be dumping too much in the intake.
#1 goes to cowl
#2 (2nd one down) goes to valve thing on passenger inner fender
#3 (3rd one down) goes down firewall
#4 (4th one down)goes to valve thing on passenger inner fender
#5 goes to bottom line of valve connected to pwr steering pump
#6 has a line that goes to top line of valve connected to pwr steering pump
I believe #5 and 6 are the cold start injector switch lines?
Any help is GREATLY appreciated. Too dangerous to drive. I gotta fix it myself.