My son's 95 4Runner was giving us 025, 026 & 071 computer codes. I replaced the water temp sensor and reset the computer. No more 025 or 026 codes but have gotten a 071. In the last 8 months we had to do a head gasket job and connected the vacuum lines as were before the work. Problem is the engine is not original, and my Chilton's manual doesn't give good clear diagrams of the vacuum line connections. We discovered this also when the 4WD light would not come on due to no vacuum to the sleeve on the front differential. Short of a Toyota factory manual ($125) any ideas of where to get good vacuum diagrams?