[DMCForum] Re: Testing Frequency valve

["cruznmd" <racuti1@xxxxxxxxxxxx>]

Ok,

The correct contacts to short with the jumper you made are: 30 & 87b.

To identify them, remove the RPM relay and look at the end. They are
labled. Then identify them on the plug and put the jumper in and turn
the key on to the "run" position.

If you ever want to bypass the relay to test the fuel pump instead of
the frequency valve, jumper 30 & 87. That is called out in the Book as
well under "Fuel, Emissions & Exhaust".

I hope I'm your new best friend now. I blew my last in-line fuse
trying to remember which contact it was. :)

BTW, I'm not trying to talk down on you. If my explanations are
over-simplistic and you know some of this stuff just tell me.

Let me know how it works out.

--- In DMCForum@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> wrote:
> 
> Make a jumper out of some scrap wire, (3-6 in. long) crimp a male 
> spade on each end (flat metal piece) and I -THINK- contact 38, and 
> 80. The book doesn't say which ones to jump for the freq valve, only 
> the fuel pump.
> 
> I leave for home in a few minutes. When I get there I will jumper it 
> and post which terminals to jump here.
> 
> --- In DMCForum@xxxxxxxxxxxxxxx, id <ionicdesign@xxxx> wrote:
> > How do you by-pass the RPM relay?
> > 
> > Mark
> > 
> > cruznmd wrote:
> > 
> > >  Ok, dummy probe:
> > >
> > > You can get this at any K-mart, Autozone or other parts house. It
> > > looks like a screwdriver with a clear handle with a lightbulb in 
> it.
> > > Only instead of being a flathead or philips it's just a sharp 
> point.
> > > It has a wire coming out of the handle with an alligator clip.
> > >
> > > To test the plug, stick the sharp point into it, touching one 
> contact,
> > >
> > > and clip something metallic and pointed (paperclip) in the 
> alligator
> > > clip and stick it in the other contact.
> > >
> > > If the circuit has power, the light bulb will light. Make sure you
> > > have the RPM relay bypassed and the key in "run" or the circuit 
> will
> > > not have power. It will be a false test.
> > >
> > > The RPM relay is usually first to go but if you're hearing 
> clicking I
> > > think that stuff is ok. You'll probably find the plug has no power
> > > because the wire(s) are broken.
> > >
> > > I don't know which wire is hot on the cpr plug off hand. Use the 
> dummy
> > >
> > > probe to find out.
> > >
> > > Rich
> > >
> > >
> > > --- In DMCForum@xxxxxxxxxxxxxxx, id <ionicdesign@xxxx> wrote:
> > > > What kind of "dummy Probe" should i use on the frequency valve 
> plug?
> > >
> > > >
> > > > Also what should i replace first the Lambda relay or the RPM 
> relay?
> > > >
> > > > I do hear some kind of clicking noise coming from the Lambda
> > > computer
> > > > area behind the drivers seat, is this normal or am i just 
> hearing
> > > > things?
> > > >
> > > > Is it ok to run the power wires from the CPR just to check the
> > > Frequency
> > > > valve, and if it is what colored wire is hot on the CPR and 
> what is
> > > hot
> > > > on the Frequency valve?
> > > >
> > > > I do need to get a Schematic that is readable, my original 
> workshop
> > > > manual wasnt printed well and some of the wire colors is hard to
> > > make
> > > > out and all of the lines are not connected so i cant tell what 
> goes
> > > to
> > > > what. It would probably make a good paper airplane.
> > > >
> > > > Mark
> > > >
> > > >
> > > > cruznmd wrote:
> > > >
> > > > >  My book's in the car. I need a pocket bible to carry.
> > > > >
> > > > > Ok, I'll tell you another story (it may not apply to you). I
> > > bought a
> > > > > new RPM relay and I still didn't have lambda. Why? One of the
> > > > > contacts in the relay was bent just enough that when the 
> winding
> > > > > energized, only the fuel pump contact closed, not the lambda 
> too.
> > > > >
> > > > > The result? I heard the "click" but had no freq valve.
> > > > >
> > > > > Yes, it gets it's power from the ECU. If you unplugged the 
> ECU, no
> > >
> > > > > freq valve.
> > > > >
> > > > > Put a dummy probe on the freq valve plug. Don't -assume- you 
> have
> > > > > power. Assume means "(make an) Ass (out of) u (and) me". 
> $5.00 at
> > > the
> > > > > most. :)
> > > > >
> > > > > Rich
> > > > >
> > > > > --- In DMCForum@xxxxxxxxxxxxxxx, id <ionicdesign@xxxx> wrote:
> > > > > > #7 fuse is good and the Lambda seems to be working because i
> > > hear a
> > > > > > clicking noise from the compartment area and the fuel pump 
> is
> > > > > working
> > > > > > too.
> > > > > >
> > > > > > I have no power to the Frequency valve, does it get its 
> power
> > > > > directly
> > > > > > from the Lambda or something else (me no good with 
> schematics
> > > unless
> > > > >
> > > > > > done in crayon with pretty pictures)?
> > > > > >
> > > > > > Mark
> > > > > >
> > > > > >
> > > > > > cruznmd wrote:
> > > > > >
> > > > > > >  1. You can use a dummy probe (Like a screwdriver with a
> > > pigtail
> > > > > and a
> > > > > > >
> > > > > > > lightbulb in the handle. $5.00) Put the icepick on one 
> contact
> > > and
> > > > >
> > > > > > > clip a paperclip in the pigtail and stick it in the other 
> one.
> > > If
> > > > > it
> > > > > > > lights, there's power.
> > > > > > >
> > > > > > > 2. Use a voltmeter to measure for voltage across the 
> contacts.
> > >
> > > > > > >
> > > > > > > 3. The valve works hot or cold. Just at different rates. 
> It
> > > should
> > > > >
> > > > > > > ALWAYS buzz when the engine is running, or it's bypassed 
> at
> > > the
> > > > > RPM
> > > > > > > relay.
> > > > > > >
> > > > > > > 4. You could apply power to it if you could find a way to 
> hook
> > > it
> > > > > up
> > > > > > > to the control pressure regulator power plug. They are not
> > > close
> > > > > > > enough so you'd have to remove the freq valve or rig a
> > > > > contraption.
> > > > > > >
> > > > > > > 5. Yes, one is a ground wire. Use the schematic in the 
> Bible.
> > > > > > >
> > > > > > > 6. A nuclear reaction or a bolt of lightning can be used 
> to
> > > > > generate
> > > > > > > 1.21 gigawatts.
> > > > > > >
> > > > > > >
> > > > > > > I recently found my freq valve wires to be hanging on by a
> > > > > thread. I
> > > > > > > brushed the plug and the wires fell right off! I had to 
> rig
> > > > > something
> > > > > > > up with a couple of crimp-on spade connectors.
> > > > > > >
> > > > > > > The other place to look is the lambda relay. If this has
> > > failed,
> > > > > the
> > > > > > > ECU will not have power and it will not power the freq 
> valve.
> > > I'm
> > > > > > > having a brain cramp right now but I also believe there 
> is a
> > > fuse
> > > > > for
> > > > > > > this. #7 I think. Verify the lambda module has power.
> > > > > > >
> > > > > > > Rich
> > > > > > >
> > > > > > > --- In DMCForum@xxxxxxxxxxxxxxx, id <ionicdesign@xxxx> 
> wrote:
> > > > > > > > My frequency valve is not buzzing so i have a few 
> questions.
> > >
> > > > > > > >
> > > > > > > > How do i test for power to the valve (colored wires)?
> > > > > > > >
> > > > > > > > Does the car have to be warm or cold to test the valve?
> > > > > > > >
> > > > > > > > Can i apply power to the valve to see if it works?
> > > > > > > >
> > > > > > > > There is two wires attached to the valve, is one a 
> ground
> > > wire?
> > > > > > > >
> > > > > > > > How do i generate 1.21 jigawatts?
> > > > > > > >
> > > > > > > > the last question was to see if you actually read my
> > > questions
> > > > > and
> > > > > > > not
> > > > > > > > just scanned the email.
> > > > > > > >
> > > > > > > > Mark
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > >
> > >
> > >                    Yahoo! Groups Sponsor
> >                         ADVERTISEMENT
> >                          [click here]
> > 
> > >
> > > To unsubscribe from this group, send an email to:
> > > DMCForum-unsubscribe@xxxxxxxxxxxxxxx
> > >
> > >
> > >
> > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of 
> Service.
> > 
> > 
> > [Non-text portions of this message have been removed]

Yahoo! Groups Sponsor

To unsubscribe from this group, send an email to:
DMCForum-unsubscribe@xxxxxxxxxxxxxxx



Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.