Posted by mick lennon on October 17, 2007, 3:04 pm
hesitation below 1500 rpm checked plugs two different types fitted both wrong. ngk plugs fitted, fault code p0170 fuel trim bank 1 malfunction suggests misfire to me but lambda switching good now new plugs in . checked cylinder misfire by pulling injector connections.no cylinder dropping more than others ,suspect coil pack damaged by having wrong plugs but cant test as it one piece. checked plug extensions on coil pack. has any one had trouble with ngk plugs in peugeots as we have had in golfs and tt's until we fit bosch