aceforever wrote:Single wire that comes from the ECU to sensors, no butt connectors?
Typically an aftermarket ECU will be supplied with a harness having a length of around
2 meters with the ECU plugs on one end and nothing on the other end of the wires. The
wires will be colour coded and identified on the manufacturers wiring diagram. During
installation, if the wires in the harness are long enough, they will be terminated with a
plug that matches the connected sensor/injector/electrical component. Thus only one
crimped or soldered join will be required in each wire.
If the wires in the harness are not long enough to reach the sensor etc., they can be
extended with suitable automotive (high strand count) wire, crimped or soldered to the
ECU harness and the join shrink wrapped. Shielded cable should only be extended with
similar shielded cable, and the shielding must also be made continuous thru the join.
Multiple joins in wiring, butt connectors, tap-ons, strip connectors, twisted and taped
joins are potential problems, and are considered poor form by wiring professionals. Not
saying that I haven't used some of these quick-n-easy connections myself, but only on
non-essential stuff like audio and accessory gauges. For anything connected tothe ECU
you should use best practice... always !!!
Cheers... jondee86