its for a fuso 8dc81a engine, inline. OEM was zexel p49. replacement of Denso was 461-0. symptoms was, no idle, and if I adjust ang idle it would go wild. When we pulled out the plunger and barrel it was heavily worn out it had already streaks. had tried to have it adjusted first but ayaw talaga mag idle. did not change the delivery vavle as there was no stock here and it was ok pa naman. now one click na ang truck and idles well.

Neg. occ.