You may have noticed I started the topic on the 305 HSR going funny. Anyway I spoke to my mate just then and he said that ever since he inserted the Chip 1 pin off it has behaved this badly and will not want to idle etc..

So the question is can inserting the chip 1 pin off cause the Memcal to stuff up or even the ECM?

Because any other chip he puts in the car runs very bad. Before the 1 pin install error it ran pretty good!