Welcome to Ultimate Subaru Message Board, my lurker friend!
|Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.
We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!
Serving the Subaru Community since May 18th, 1998!
Tach et al unwired
Posted 25 October 2003 - 08:06 PM
Where is the FPCU in the '84 Wagon? What does it look like? The last owner of my 'Ru had a bypass wire running from the fuel pump through the back door, under the front seat and it was loose on the floor of the passenger side when I got the car. Hook the wire direct to the battery and car runs fine.
Also, tach isn't working. Am sure this is result of jerry-rigged wiring job as well. Where does the tach wire go to? And if I clean the grease off it, what color is the wire?
Also, where does the vacuum hose for A/C idle advance originate on an EA-81. I know where it is on the EA-82 but can't seem to locate origin point on the EA-81.
Posted 25 October 2003 - 09:35 PM
Posted 27 October 2003 - 02:14 AM
Following your directions I found the tach wire (yellow with white stripe) as well as another thin yellow wire loose. There already was one yellow wire on the coil. To make a long story short, I connected the loose tach wire to the coil and found the connection for the thin yellow wire. Now I have a working tach AND a working fuel pump sans jerry-rigged bypass!!!! Killed two birds with one stone! All gauges now working!
Thank YOU Jerry! U DA MAN!!!
Posted 27 October 2003 - 07:41 PM
The fuel pump controller is a blue box mounted against the driver's side wheel well, up under the instrument cluster.
This thing works by energizing the fuel pump relay when the ignition switch is in the "Start" position and also when the engine is running. "Engine running" is determined by the box seeing the same ignition pulses the tach sees. In fact, the fuel pump controller and the tach share the yellow wire from the coil.
The fuel pump controller shuts down the fuel pump when you switch the engine off, or when the engine stops because of an accident. On cars that have an ECU, the fuel pump controller is built into the ECU, but it works the same way.
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users