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FenderGuy's Avatar
 
Join Date: Oct 2003
Location: Scottsdale,Az
Posts: 3,738
Frequency valve Issue?

Ok finally got my car from the shop back today and I was changing out my spark plug wires to Beru, start the car up and I can hear a buzzing sond and its the FV (Which was changed out 1 month ago) car proceeds to start dying, turn it on again and open the engine lid and diconnect the FV, it runs fine....

So what else could the piece here that is causing this? I have tested relays, the bran, changed out the FV ?

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Frank
1980 SC Cab Conversion (sold)
1974 914 2.0 RIP rear ended

Looking for a 996 Silver Cab 2002-2004
Old 07-25-2008, 11:15 AM
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FV is supposed to buzz.

Disconnecting it puts it into rich mode? (I think). Or really lean???

Is your car running too lean? Too rich?

Last edited by tcar; 07-25-2008 at 01:54 PM..
Old 07-25-2008, 11:24 AM
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I had this issue a while back, one day the car didnt want to start. Next day turned it on, but it kept dying on me. Someone suggested I check the FV, i disconnected it and it ran fine. I am trying to get the car ready to sell it and change out the FV and I am getting the same issues and when this first started.

I just got the car back from shop and swapped out Jacobs wires for Beru wires and now this?
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Frank
1980 SC Cab Conversion (sold)
1974 914 2.0 RIP rear ended

Looking for a 996 Silver Cab 2002-2004
Old 07-25-2008, 11:44 AM
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gotta have the FV functioning. it goes way lean when it doesn't. so if yours runs better with it disconnected, then it must be way rich with it hooked up.
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Old 07-25-2008, 12:04 PM
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John

Thanks for all the advice on this and in the past on this issue...

So an adjustment should work then? Could that be the reason why the car does't want to stay on? The Aux lghts go on when it does this?
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Frank
1980 SC Cab Conversion (sold)
1974 914 2.0 RIP rear ended

Looking for a 996 Silver Cab 2002-2004

Last edited by FenderGuy; 07-25-2008 at 12:47 PM..
Old 07-25-2008, 12:43 PM
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The FV is on the same fuse as the interior lights and the clock.

FWIW.

Old 07-25-2008, 01:55 PM
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