Re: [DML] RPM Relay

[Chris Almy <chris.almy@xxxxxxxxxxx>]

Dave,
The RPM relay only powers the fuel pump. The frequency value runs 
continuously as long as the ignition is turned on. The Lambda system has 
it's own relay that has a metal case and is right next to the green module. 
However, both systems are related in that they are both powered by the #7 fuse.

Should the RPM relay fail, it's best just to replace it as they aren't that 
much. If you don't know how old it is or if it's original, simply replace 
it now as preventative maintenance.

Chris
VIN 4099

At 04:56 PM 7/17/2005 +0000, you wrote:
>I've heard of the failure mode in the rpm relay in which it doesn't
>stay closed and either you can't start the car or the engine won't run
>at high speeds but I just discovered that mine doesn't shut off even
>when the engine dies.
>
>When the engine dies and the RPM relay opens up should the frequency
>valve still be buzzing?
>
>Is this a familar failure mode with a know fix?
>
>Does anyone have the schematic of the rpm relay?
>
>Thanks in advance.
>
>D² & 6530
>Dave Delman





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