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Discussion Starter #1
SO I checked for codes the other day and I got a P1690 code what would you say is the problem. (I did see it has to do with the wastegate)
It's a 1999 F250 7.3 auto 2 wheel drive.

Thanks

Dan
 

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From the service manual:

KH2 DIAGNOSTIC TROUBLE CODE (DTC) P1690
DTC P1690 indicates that the PCM has detected a failure on the WGC circuit.
Possible causes:
short to ground
open in harness
damaged connection
damaged WGC solenoid
damaged PCM
blown fuse
Disconnect the WGC solenoid harness connector.
Key on, engine off.
Measure voltage between pin 2 (KEY PWR) on the WGC solenoid harness connector and ground.
Key off.
Is the voltage greater than 10.5 V?
Yes GO to KH3

No REPAIR open in (KEY PWR) circuit 16, or INSTALL a new fuse. RESTORE vehicle. CLEAR DTCs and RETEST.

Hope this helps.
 

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Discussion Starter #3
Ok I have a question where is the WGC solenoid located?

Also what will this do open and close the wastegate?

I cleared the codes the other day and just turning the key on showed the code.

Also where is the fuse located for this, I did have a CD for the truck but it's someplace but here right now :(

Our truck seems to be running rich so I wonder if this might be part of the problem.

Thanks
Dan
 

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From the service manual:

KH2 DIAGNOSTIC TROUBLE CODE (DTC) P1690
DTC P1690 indicates that the PCM has detected a failure on the WGC circuit.
Possible causes:
short to ground
open in harness
damaged connection
damaged WGC solenoid
damaged PCM
blown fuse
Disconnect the WGC solenoid harness connector.
Key on, engine off.
Measure voltage between pin 2 (KEY PWR) on the WGC solenoid harness connector and ground.
Key off.
Is the voltage greater than 10.5 V?
Yes GO to KH3

No REPAIR open in (KEY PWR) circuit 16, or INSTALL a new fuse. RESTORE vehicle. CLEAR DTCs and RETEST.

Hope this helps.
From the service manual:

KH2 DIAGNOSTIC TROUBLE CODE (DTC) P1690
DTC P1690 indicates that the PCM has detected a failure on the WGC circuit.
Possible causes:
short to ground
open in harness
damaged connection
damaged WGC solenoid
damaged PCM
blown fuse
Disconnect the WGC solenoid harness connector.
Key on, engine off.
Measure voltage between pin 2 (KEY PWR) on the WGC solenoid harness connector and ground.
Key off.
Is the voltage greater than 10.5 V?
Yes GO to KH3

No REPAIR open in (KEY PWR) circuit 16, or INSTALL a new fuse. RESTORE vehicle. CLEAR DTCs and RETEST.

Hope this helps.
what fuse is it that you are talking about that could be blown..?
 
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