i just got a new dash and my isues are fixed never went through the trouble of looking for the grounds due to the fact that everything elts works finr hud speedo tach and all lighting never flicker so i just went for a new dash and wala now i can watch my boost agin

But can you see your odometer at night? Pease advise. See this link for a discussion of the problem:

http://www.bonnevilleclub.com/forum/...ic.php?t=63271

ya mine is digital so it is either on or not sorry didnt know it was related to other thread or i would have stayed out but my 93 SE had no prob seeing the odo in the dark it lit up well

Thanks, the info on your 93 SE helps anyway. I am still learning the various options so I will express my ignorance. I knew there were GM digital dashes but I was unaware that the Bonny had them.

just parts of it are digital and the odo is one of them parts here is a pick the compass is on the left and the info center is on the rite with things like a lamp faluer system and door monitor and trip aswell as odo

Boosty shot me a new headlight switch and my dash lights are again bright.

Since I have twilight sentinel and thus never use the headlight switch, I think that lets crud build up on the contacts.

Update on dash.
Well it looks like I need to find another dash. I removed it cleaned all contacts and reinstalled it. Checked all of the grounds and started it up - my dash worked!!! - for about 5 min. until it warmed up - ping and all guages (except the tach and speedo) go dead. Took it all out again and cleaned it and looked for bad solder joints. Put it back in, worked again for about 5 min.
This is the pattern it repeats now, when it is cold in the morning it works fine, as soon as it heats up they go dead. Bad component in a circuit card I assume.

If you reflow the solder on most of the major contacts..I bet you'd get it.

Exactly....you often can not see the bad joints just by looking at them.

I should have added ...

Having pulled one of these dashes apart many times. There are many spots to look at and reflow.

I wouldn't waste time trying to get the smaller ones. Aim for the main power coming into the dash and ground first. Especially at the connectors going into the main PCB.