When I upped the boost on my 88 turbo I started hearing a solid ding very very similar to the "key in ignition, door open" alarm. It comes on when the boost gauge reads about 7 or higher and stops when I let out. Only does it when I pass 7 lbs of boost. Do the mk3's have a warning alarm?
I have a programmable alarm output on my wideband that could be used for such a thing. Start looking for aftermarket electronics.
Edit: A relatively simple circuit could be used as well, just a simple comparator on the boost gauge sender signal. I've been looking at the factory boost gauge for a while, doing some modifications to it with a wider range sensor. The factory boost gauge sender is a 5V MAP sender, but the top of the gauge is ~3.3V, so a comparator could easily be used to trigger an output signal for any voltage between about 3V and 5V for an "overboost" alarm.
Edit: A relatively simple circuit could be used as well, just a simple comparator on the boost gauge sender signal. I've been looking at the factory boost gauge for a while, doing some modifications to it with a wider range sensor. The factory boost gauge sender is a 5V MAP sender, but the top of the gauge is ~3.3V, so a comparator could easily be used to trigger an output signal for any voltage between about 3V and 5V for an "overboost" alarm.
Boost guage is stock. The AF ratio is still rich. and it runs fine so I don't think it's fuel cut. It's not acting like fuel cut.
And for the record I do have basic mods like intercooler, downpipe, full exhaust, remanufactured injectors, afpr, walbro 255, 57 trim upgrade, and many other piddly things.
And for the record I do have basic mods like intercooler, downpipe, full exhaust, remanufactured injectors, afpr, walbro 255, 57 trim upgrade, and many other piddly things.