[Jon]

I have two unusual problems. Power for the fuel pump periodically is cut off. Sometimes it happens at idle and sometimes at speed. The fuel pump relay has been replaced and appears to be OK.
The idle jumps up to 1900-2000 RPM as soon as the car starts moving, even though the accelerator isn't touched, and the RPM's don't return to idle until the car comes to a complete stop.
I'm wondering if both problems are due to a faulty Air Flow Meter. Any suggestions??

 

[Phantom]

> I have two unusual problems. Power for the
> fuel pump periodically is cut off. Sometimes
> it happens at idle and sometimes at speed.
> The fuel pump relay has been replaced and
> appears to be OK.
> The idle jumps up to 1900-2000 RPM as soon
> as the car starts moving, even though the
> accelerator isn't touched, and the RPM's
> don't return to idle until the car comes to
> a complete stop.
> I'm wondering if both problems are due to a
> faulty Air Flow Meter. Any suggestions??
Jon,
E-mail me directly and I'll see if the service manual has some good suggestions.
Phantom

 

[Don]

> I have two unusual problems. Power for the
> fuel pump periodically is cut off. Sometimes
> it happens at idle and sometimes at speed.
> The fuel pump relay has been replaced and
> appears to be OK.
> The idle jumps up to 1900-2000 RPM as soon
> as the car starts moving, even though the
> accelerator isn't touched, and the RPM's
> don't return to idle until the car comes to
> a complete stop.
> I'm wondering if both problems are due to a
> faulty Air Flow Meter. Any suggestions??
Your fluctuating idle may be due to a faulty BCCD (boost controled deceleration device) which is mounted near your throttle body underneath. Check the electrical connection to it and also (don't have my manual handy)vacuum line? It has an adjustment to it. This keeps the engine at a higher RPM until you come to a stop. Pollution purposes. As for your fuel pump periodically cutting out I would pull the fusible links and clean the connections. You might have an intermittant fault there since that is where your pump is fused. Let me know if any of this helps. Good luck!

-Don