Alfa Romeo 156 2.0 16v - Runs weak, ok on light throttle, will not rev #Archived Message
Posted by Alex Walker on July 16, 2007, 4:54 pm
Hi folks got this Alfa kicking my ass,runs slightly weak at idle,is ok at light throttle openings but totally bogs on snap throttle,just like a maf fault but its ok,been substituted with a new one and a known good one,fuel pressure is ok,substituted fuel supply to prove fuel was ok and not contaminated,no back pressure in exhaust,valve timing is ok,was slightly out but corecting made no difference.Is there any problems with manifold runners?can move the actuator manually and makes no difference. only fault code is 170 lambda integrator above top limit Cheers Alex