Over boost cut offs on 200 Turbo?

[Phil Payne <quk@sievers.com>]

In message <VA.00000249.0007a60c@maximum-bhp.u-net.com> Chris Wilson writes:

> Are there any forms of electrical overboost sensors on a 88 200 Turbo,2WD?
> Where is/are the sensor(s)?

It's an ECU function.

> How do they operate,do they retard ignition,kill random sparks,or what? The 
> car is K-Jetronic,BTW,it seems a lot of the lists US readers expect the car 
> to have electronic injection,not the old mechanical...

It kills the fuel pump.  Like hitting a brick wall - from full boost to dead 
engine.  You can simulate the effect by deliberately hitting the rev limiter.

An experience to be avoided when overtaking a long truck on a twisty country
road.
 
--
 Phil Payne
 phil@sievers.com
 Committee Member, UK Audi [ur-]quattro Owners Club