Originally Posted by Dave Henshall

pins 1 and 2 at the ecu,

here's a problem that had myself and Stu stumped for a while... mine was running rich when the chip was fitted with the greens and 3 bar, the pectel monitor read the right voltage from the MAP, but it was still very rich - 1.2 volts from the lambda!! we tried everything, fuel pressure reg, , lambda, ecu, chip to no avail. then Stu had an idea - he swapped the map sensor for a new one and hey presto it all worked spot on - but yet the spooky bit - hte pectel monitor read EXACTLY the same reading for the new MAP sensor as it did the old, but the old one was giving a slightly loaded engine reading and causing more fuel even at idle - strange but true and it s an easy one to swap if it is that