WIde open throttle switch

[John Lag see]

That seems like it would be a vacuum leak. Look for one of the ridge hoses maybe on the intake. Those can hide small cracks.

Sent from my iPhone

> On Aug 8, 2016, at 6:46 PM, Alan Streicher <streichea001 at hawaii.rr.com> wrote:
> 
> Audi model 80 2.0 3A
> This must be fixit month.
> Problem: surging throttle, up RPMs, then down. When idling, engine goes from 950- 1800. Up and down. Same when I'm driving, throttle has an up, down surge, but not more than 100-200 RPM.
> 
> I checked the idle and full throttle switches.
> Idle switch.
> Connect a multi-meter, switch on, throttle closed: 0 volts
> Throttle open slightly: approximately battery voltage.
> 
> Full throttle switch.
> Switch ON ignition.
> Throttle closed: approximately  battery voltage.
> Throttle completely open: approximately battery voltage (should be 0 volts).
> Manually depressing the lever, on the switch, no change, battery volts. 
> 
> So the WO throttle switch is not working.
> Is this causing my engine to race up and down?
> I have looked on the Internet for a replacement switch, none found.
> Can I just disconnect the WO throttle switch? 99% of my driving is on city streets.
> Would anyone have a spare switch with harness, PN 026133093D, that I can buy?
> Any other solutions gladly welcomed.
> 
> Aloha,
> Alan
> 
> 
> Sent from my iPad
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