random stalling of engine

  1. Established Member Joined: Dec 2007 Harrietsham/Lenham Posts: 1388 106 xsi
    #1
    after about 3 lazy months, my xsi is finally back. my old 120bhp 1.6 xsi engine died. i have replaced with a 1.6 8v pug 306 engine, its 90 bhp or 100 bhp. well, it starts fine and engine sounds fine but now and then it stalls, revs high, or low. or when u go to rev it it like chokes up and stalls. i have the xsi ecu on it. its similar to a dogey throtle body sensor but i dont no if its that or not.