Suby Skier

I have a 99 Outback Wagon, 2.5. 148,000 miles. Does anyone know what the resistance should be on the spark plug wires I am getting a range from about 8 ohms - 11, is this normal? Also what should the resistance be on a knock sensor? Thanks in advance. Ken

Thanks for the replys, The hesitation is fairly slight and just of idle. It seems to do it when the engine is warmed up and idle lowers. It is more of an annoyance. It is my wifes car so I do not drive it much, but am wondering if this problem is related to fairly poor MPG. I am getting around 23 in mostly highway driving. I am going to try SEA Foam to see if it helps before I try a new knock sensor. I also need to check into the ignition wires as was mentioned. Thanks, Ken

I forgot to mention this before, but I swapped out the MAF from my 97 Outback Sport, which appeared to be the same. I still had the hesitation from idle. I thought about adjust the TPS before but was scared off from adjusting it because I read in the Chiltons manual I believe, that it should be adjusted at the factory only or you needed special test equipment. Thanks, Ken

I cleaned the MAF with a Q-tip and rubbing alcohol. It looked fine before hand. I have not checked/replaced the Knock sensor but will try that next. The butterfly valve seemed to be OK.

I am having a persistent hesitation from idle on a 99 Outback wagon, Auto, CA emission vehicle, 148,000 miles. I had to repalce the engine a year ago for the dreaded head gasket problem. The new rebulit engine still has the same hesitation from idle. I have done the following: Replaced PCV valve Cleaned EGR valve and passages Replaced both O2 sensors Replaced Air filter Replaced fuel filter Replaced spark plugs with NGK dual platnum Used BG-44K to clean fuel system Cleaned MAF Cleaned Idle Control Valve Replaced all fluids in the vehicle I pulled codes which I have none. I did a search on hesitation but have not found a similar problem or fix for a hesitation from idle when you hit the throttle either in neutral or in gear. Thanks in advance for any advice as to what could be causing this problem. :confused: Ken