The optic sensor is located in the top of the injection pump. The sensor sends an infra red signal to the computer. This sensor is your cam sensor and if this sensor fails the computer is unable to know the timing or enven adjust the timing. There is no cleaning, check for diagnostic trouble codes. First is the check engine light "ON" when the engine is running? If so shut-down the engine and with key on engine off you can check for codes. The vehicle should have the old 12 pin diagnostic connector. If so you can use a paper clip and jump terminals A and B and watch the check engine light. the codes are number of long and short flashes, and repeated three times with 12 being the first code. I will look for my 6.5 material for the wiring diagram in order to make better diagnostic. If you need to call send me your number. Hope this helps Tim
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Today's Featured Article - Sunday Drives - by Cowboy. Summer was finally upon us here in Northern Maine. We have two types of industry up here, one being "Forestry" (Wood Products) and the other "Farming" (Potatoes). There is no shortage of farm tractors and equipment around here! I have been restoring old Farm Tractors for the past 6 years, and have found it easier and less expensive to hit all the auctions and purchase whole tractors for parts needed. My wife who works at a local school, and only has weekends and summers off, while on t
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