Guillermo Mota has appeared in 56 games for the Mets over the past two seasons. He gave up 1 or more ERs in 10 of his first 49 appearances for the Mets (that's 20.4%). Over the last seven appearances, he's given up 1 or more ERs in 6 of them (85.7%). 5 of those recent appearances with at least one ER were consecutive.
Most consecutive appearances during a single season by a Met relief pitcher, 2 IP or less, at least 1 ER given up:
6 straight games: Tug McGraw (April,1974)
5 straight games: Mota (2007), Pat Mahomes (2000), Rich Rodriguez (2000), Mel Rojas (1998), Jesse Orosco (1987), Neil Allen (1979)
streak data produced using the Play Index at http://www.baseball-reference.com/pi/