Re: Testing coils on a coil over plug system?
Art, as I stated before, and this is just my opinion from nearly 30 years of driveabilty diagnosis. A crank or cam sensor issue will 99% of the time result in an immediate stall, not slowly quit running. Basically if this engine runs normally in nuetral and you place it in gear you are really only doing 1 thing, increasing the load. The sensor responsible for measuring engine load is the MAP sensor. You said it seems to read normally, what BAR sensor are you using, after quickly scanning some of your systems operating capabilities I saw that you can use MAP or Throttle pos. as your load measurement. From my perspective the engine needs 2 things to happen when it's loaded 1 the fuel needs to increase and 2 the spark instant needs to increase. From what you're saying the engine just seems to slow down to the point of quitting which to me at least indicates it is lacking in proper amount of fuel or spark lead to maintain it's desired idle speed. If I understand correctly you have an indicator lite for Cam sync input? Perhaps on the ECU, if so does this lite quit blinking just prior to stall. Sorry for all the questions but I'm really baffled by this situation and trying to determine what's Not causing it.
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Joe Buchanan SS/BX 3117
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