Random Screws

[Bongoplotter]

A mechanic fitted a new TPS to my van yesterday and was puzzled as to the purpose of the two screws shown in the photos below.
Any ideas please? Thanks

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[g8dhe]

Not sure what screws your pointing at ?

[Bongoplotter]

IMG_7329.PNG (95.87 KiB) Viewed 7079 times

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Hopefully these zoomed-in versions help. Thanks

[g8dhe]

The one behind the vacuum solenoid looks added or perhaps is holding the solenoid in place ?
The second one in the vacuum tubing is obviously blocking it because the tube is not connected!.
Have you tried the mechanical diagrams ? This link shows the entries for the vacuum system try each one in turn to find the pipe you have blocked and where it should go ? https://www.lushprojects.com/bongoparts ... Ctr.html#6

[Northern Bongolow]

Geoff's correct, both screws are blocking the loss of vac or transfer to the next item in the pipework system maybe the solenoid has failed either open or closed, an applied 12 v supply to it will tell if the solenoid is operating.

[Bongoplotter]

Thanks very much both