Instrument cluster swap

[MartinThomassen]

I just picked up some cheap spareparts from a '97 car that is going to the scrap yard today.
Among these parts was the instrument cluster and the in tank fuel pump including the fuel level sender. My thought was to use this to replace the erratic instrument I have on my '92, but I just found out the connectors are not the same
Would it be possible to swap the instruments if I get the corresponding connectors from the '97 loom, or are the wiring all different?
Anybody got the loom diagram for the '92 and '97 instruments as a PDF that they would share with me

[Forrest]

The simple answer is no on both the instrument cluster and the in-tank pump. Have a look in the FAQ for notes on cluster interchangeability. Prior to 1995 you really need the same model year to avoid a world of pain.

https://www.volvoclub.org.uk/faq/Ele...ngeability.htm

There are also notes on repairing clusters which may be of help. However, I have always found it hard to achieve a lasting repair and have generally resorted to exchanging clusters/instruments.

As far as the in-tank pump is concerned, 1994 and earlier will use a low pressure lift pump to feed a main pump under the car. After about 1995 Volvo changed to a single, high pressure in-tank pump. You can change from one system to the other but this would involve a number of modifications. Easier to stick with what you’ve got and replace the faulty components. The lift pumps are not expensive.

[MartinThomassen]

Originally Posted by Forrest

The simple answer is no on both the instrument cluster and the in-tank pump. Have a look in the FAQ for notes on cluster interchangeability. Prior to 1995 you really need the same model year to avoid a world of pain.

https://www.volvoclub.org.uk/faq/Ele...ngeability.htm

There are also notes on repairing clusters which may be of help. However, I have always found it hard to achieve a lasting repair and have generally resorted to exchanging clusters/instruments.

As far as the in-tank pump is concerned, 1994 and earlier will use a low pressure lift pump to feed a main pump under the car. After about 1995 Volvo changed to a single, high pressure in-tank pump. You can change from one system to the other but this would involve a number of modifications. Easier to stick with what you’ve got and replace the faulty components. The lift pumps are not expensive.

Hi, thanks. It was because of that thread I figured It would be a direct swap.
I guess most people don't have the opportunity to nick the corresponding connectors on the loom, so I just thought if it was only the connectors that were different that might be the solution, but I see that it might be a totally different wiring. That is why it would be great to have a diagram of both the two to be able to compare this.
I wouldn't think that rewirering a 80s based car could be that hard, if that is my last resort, but I could be wrong

[Forrest]

Look at the pinout details Rversteeg posted in this thread for old/new connector layouts.

https://www.volvoforums.org.uk/showthread.php?t=327845

However, it’s not just the pinouts. It’s changes in the signal parameters too. I think this will affect all the gauges across different vintages. You would end up having to rebuild much of the car with components from the later one; and to what end? I recently had to replace a troublesome cluster on a 1997 model. They are not immune to problems.