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4 and 5 running rich and fouling plugs


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Running a tech 3r on brandnew engine with 650cc RC injectors and 4 and 5 keep fouling out after 100 miles or so causing car to run like crap. Pull all plugs after a short dirve and 1-3 and 6 are tan at tip and dry but 4 and 5 are black and slightly wet. Use cloth to dry off and put back in and run car for a minute and pull back out and they are wet again. Clueless unfortunately at the time on whether EMS can control the amount of fuel each injector deposits? Possible solutions as injectors are brandnew. I suppose if EMS can control that then a simple tune will solve this if each injector can be isolated. Running fuel pressure at 42 lbs.

 

Thanks for input.

 

J

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