RE: Testing Knock Sensors

[Sachelle Babbar <sbabbar@iris.nyit.edu>]

Oh yeah, with my "fix" on reusing the old sensor on the hunch that it may
be good, carefully steel wool the threads and base of the sensor and clean
until dry. Try the same on the hole in the block. Problem is bits of wool
and debris may get in the hole and I think it's a passthrough to the
crankcase. Any event, use judgement and don't use wire to clean the
sensor.

****************************************************************************
*Steve                                             Sachelle Babbar
*'87  5000CS Turbo 5spd 1.3-2.0 bar             <SBABBAR@IRIS.NYIT.EDU>
*Cockpit adjustable wastegate, AudiSport badge
*
*Disclaimer:"Any information contained herein is based purely on my own
*personal experience and may not necessarily reflect yours. Use caution as
*your results may vary from mine."
********************************************************************************
                                                                               



On Thu, 2 Dec 1999, Buchholz, Steven wrote:

> ... I don't know that there is much you can do to test it ... about the only
> things you can do that I'm aware of are to make sure that it is tightened to
> the proper torque and that the connector on the firewall is making proper
> contact.  I added the last note because the new sensors come with gold
> plated contacts which indicates to me that there may have been a problem
> with noisy connections with the old connector.  If after you do these things
> you still get the code replace the sensor.  When I dealt with this on my '88
> 5kCSQA the code went away after I replaced the sensor ...
> 
> HTH!
> Steve Buchholz
> San Jose, CA (USA)
> 
> > -----Original Message-----
> > 
> > Is there any way to test a knock sensor?  I have a 2144 fault 
> > code, but I want
> > to confirm that the sensor is bad before I replace it (expensive).
>