[DML] Re: Fuel Pump Not Getting Voltage After RPM Relay Replaced
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[DML] Re: Fuel Pump Not Getting Voltage After RPM Relay Replaced



Hmmm, is that what those ignition resistors are doing on the firewall...

I think the point David is trying to make is that a poor connection
will increase resistance, which will generate heat, which will lead to
things like melted plastic, loosened solder, IC damage, etc.

Just touch a resistor with juice flowing through it if you want to see
what kind of mischief resistance can cause.

You are correct about the wiring schematic. Jim is going to need to
start at either end of the circuit and ring it out. That's really the
only way to find an electrical problem. Sometimes you can get lucky
and find the problem in the middle, but more often than not its a
linear process of checking for juice at each connection along the way.
The trick on a DeLorean is finding a good ground. 

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "Elvis" <elvisnocita@...> wrote:
>
> 
> David - please !!!!!!
> 
> a higher resistance means less current !!
> 
> Mr Ohm invented this basic law: R = U / I !!!
> 
> @ Jim - no it is not the coil. The coil is driven 
> by the ignition ECU as is the rpm-relay.
> Did you bridge the rpm-relay to let the fuel pump 
> run continuously ?
> the rpm-relays tend to fail because of a loosened 
> solder joint. this may behave like you described - 
> somtimes it works, sometimes it won't.
> 
> checked the inertia switch ?
> 
> do you have a schematic of the car ?
> 
> Elvis & 6548


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