re: Dead Spider Update (when spider fp runs)

[Rodney Tidwell <rodneygt@domain.elided>]

Godfrey DiGiorgi <ramarren@domain.elided> wrote:


> You should have fuel pressure all the time, with the pump humming whenever
> the ignition is on. Easy to tell ... just turn on the ignition and see if
> the pump is humming, or pull the fuel line from the rail and turn on the
> ignition ... you'll get a LOT of fuel flow very quickly. If there's no
> fuel pressure, you definitely have a fault in the fuel system.
>
I've seen something to the effect of the above posted before in
reference to the bosch spider.  I didn't think that would be true unless
someone rewired your combi relay.  It is certainly NOT true for the
milano or gtv6 - I can speak to this.

I've had two bosch spiders and I'm pretty sure the fp did not run in
either when the key was merely in the 'on' position - I seem to recall
listening to the radios in the cars without hearing/feeling the fp
running when the engine was not running.  However, it has been a while
and I never looked at the issue specifically so I will defer to others.

As to the original post, I had a problem strikingly similar to yours a
few years back.  However, the car involved was my GTV6.  I was looking
around under the hood with the engine running.  I blipped the throttle
with my hand a couple of times.  Then, the car just died.

I could make the fp run by tricking the combi relay - so I knew the fp
was working.  I could crank the car a few times, remove the plenum to
air filter hose and be greeted by excess gasoline so I knew the fp was
working when I was cranking.  Power was present at the coil.
Unbelievable though power was not leaving the coil.  I finally convinced
myself of the previous by pulling a plug, cranking the engine with the
plug connected to it's plug wire being held just above a ground and
seeing no arc.  Then, I really got brave and held the wire while the
engine was cranked no pain.

I called Mr. DiMatteo.  We discussed the problem and decided the culprit
was probably the ignition ecu, not to be confused with the fuel
injection computer.  The ignition ecu is a black plastic box about the
size of a computer mouse hidden inside of the car - not the thing
mounted by the coil.  Fortunately, I also have a milano.  I switched the
parts and the GTV6 fired immediately.  I bought the used part from APE
and saved a ton.

Now, I don't know if the spider is set up the same way, but, if it is,
it might be something worth looking into.

Maybe someone else could speak to whether the spider has a seperate
ignition ecu like the v6.

Rodney
McComb, MS

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