1994 volvo won't go into park. had reverse lights and horn fixed

Various help here, but as the reversing lights don't work, my guess is an intermittent fault in the shift lever switch.

Your question appears in this link, but attributed to other sites.

https://www.google.com/search?q=2016+Volvo+V40+C2+park+assist+working+intermittently

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You do realize no one ever has to go to a dealer,ever,
even with a new car,you own it,& as you said the dealers
are expensive
What about the couple hundred thousand repair shops that
do the same as a dealer?

Sounds like the fuel filter is dirty... When have you replaced it last? Possible that the pump is bad but I would start with the filter.

check the ground on horn

Sounds like either you did not connect the seat belt restraint wiring when the seats where put back in. This is a common problem. You will need to look under the seat and make sure that there are no loose wiring at all. The SRS is for the seatbelts.

sorry but this is a classic symptom of a failed trans clutch pack, you will need a full teardown of the trans to fix this problem

I agree. Find a transmission. There is really no easy fix. Sorry.

How do you know the turbocharger doesn't work? Just because the boost gage doesn't show boost PSI doesn't mean the turbo isn't working. Junkyard or rebuilt turbos aren't cheap but they're less expensive than a new one from a dealer. Don't buy a old turbocharged Volvo they're money pits. They always break down and parts are really expensive (and hard to find on older models) and you have to find a mechanic that specializes in fixing Volvo's.

I am a volvo tech and your problem is fuel pressure ralated and i had same problem in 1995 850 turbo and the fuel pump was the problem and a used one is around 35.00

No, there really isn't. You will need to rebuild or replace the transmission. Really, Volvos are great cars from a safety standpoint, but not always the best from a reliabilty standard. By the time a car is 10 or 12 years old, it is usually better to cut your losses as it will become a money pit.