pump controller, and air regulator. There is also another wire that goes to
the ignition switch. However these wires are shown as solid orange in the
wiring diagram (back of EFEC section) in the service manual for my 90tt.
But all the items play a role in starting a car. There are testing procedures for each of the items using a multimeter
listed in the EFEC section of the manual. The working specs of each
device are listed there. I would test each item starting with the fuel pump
controller and fuel pump. (when you turn the key to the start position do
you hear the fuel pump priming behind the driver's seat? If not, then the
pump or controller or wiring leading to it could be your problem) If the items test okay, then I would get a helper to help you test the
continuity from the item to the ECU terminal to see if there is a break in the
wiring preventing the signal from passing through. Hope that helps. ps. there are PTU testing specs in the EFEC section as well if want to test
that device, and make sure all your connectors are free from corrosion.
You can clean them with small pic and electrical contact cleaner, and then
dielectric grease.
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13:00:59 05/01/08
