GM DTCs reliability

[Scott Shotton]

Is the crank sensor a permenant magnet style slid into a hole on the
right of the block or a hall effect in the distributor?

It sounds like a crank sensor to me.  I have seen many heat related
crank sensor problems on GMs.

Scott

martin at mgass.demon.co.uk wrote:
> 
> One of our vehicles (1996 2litre 16v GM Omega) is showing the
> occasional check engine light accompanied by rough 'get home' running, symptoms as follows :
> 
> 1. Put ECU into diagnostic mode and it emits trouble code 10-3-3-5, which I think
> is Crank-angle sensor.
> 
> 2. Engine occasionally stalls on tick-over, only happens when engine is re-started whilst warm
> after a run (doesnt' happen from cold).
> 
> 3. Most tuners take view that this SIMTEC ECU engine has two main
> fault areas a) idle sensor clogging up, b) crank angle sensor
> failures.  Idle sensor has been cleaned and also plugs checked and
> gapped.
> 
> I understand that Crank Angle sensor usually plays up as a result of
> heat or vibration (but I can't detect any changes in this area).
> 
> The question is whether to replace the Crank Angle Sensor (not cheap)
> or to look elsewhere for the root cause of the fault.
> 
> Anybody any comments/views ?
> 
> Thanks
> 
> Martin
> -----------------------------------------------------------
> martin at mgass.demon.co.uk
> -----------------------------------------------------------