Quote:
Originally Posted by jwakil
So as long as pump is running it should have voltage, regardless of engine temp? I think I know the answer but want to make sure. I also see the WUR is also connected to the O2 sensor for newer SC cars. Since my engine doesn't use O2 sensor, I wonder if that is why I'm not getting power to the WUR. Anyway, I'm surprised my car runs as well as it does without the heat element. In fact, I've been having problems with too high cold control pressure, which is opposite of what I would expect if the heating element wasn't heating. I think my recent adjustments to the WUR pin has compensated some for the lack of heating.
So....to fix this problem: I read in the manual that the power lead of the WUR should go to pin 30 of the fuel pump relay. My ground brown wire looks ok but I'm reading nothing on the red/white pwr wire. Would I have to run a separate wire all the way to the relay or can I tap into it somewhere in the engine bay?
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jwakil,
It looks like you've been looking at the wiring diagrams but has not been able to interpret it correctly. The
FP, WUR, AAR, and
FV relay share a common power input source
@ 30 (FP relay). Each of these CIS components work independtly from each other and do not effect each other.
For better analogy, I'll give an example of the above circuitry in our household. If your
TV, bread toaster, and microwave oven are all connected or plugged to a single power outtlet, you won't say that the
TV is not working because the bread toaster is defective!!!!!! That's what your were saying in your above post.
Anyway, your
WUR problem is
solved. To solve the other problem about your
FP running when it should
not is much easier to solve or fix. Sit back and relax......look at the wiring diagram where the
FP relay is located (cir.#106 in factory shop manual) or in other reference drawings. Do you understand how the FP relay works? Pop the front hood of your car and remove the
red FPR. Locate terminal #85 in the FPR socket. This terminal in the socket is for the ground contact going to the
AFS. There should be
ground reading at standby!!!!
So how do you test it? Simple. Connect the test light to your car battery. Remove the ground and connect it to #85 (FPR socket).
It should lit up. If it does not, you found the
problem!!!!! The AFS is either defective or unplugged. Keep us posted.
Tony