no spark at spark plug cavalier

hi..

got a problem with cavalier sri 2.0 16V .. XE type engine
there is no spark at the spark plug. Previously there was no obvious
degredation of starting.
engine turns over freely.

been told it could be the crankshaft or camshaft sensor..
anyone got any other ideas

cheers

 

Most likely cause is both sensors, as they default to each other should one
break down. This said, it would be best if you pulled the codes to confirm,
as the problem could be in another area, such as coil pack.
Incidentally, be carefull when testing for a spark, as this is a HEI system,
and can deliver enough power to make you think someone took a baseball bat
to your head.

 

pull codes..
not sure what you mean by this..

i assume that there is a way to get the codes from the control unit.
is it v/hall only or is there another way.

btw chanks for the help

 

also took end off the camshaft sensor and a fair bit of oil poured out..
i would imagine this area should be dry..??

 

The codes can be pulled without special equipment, but cannot be erased.
the following link explains the procedure:
http://forums.delphiforums.com/cartune/messages?msg=28.1

You can sign in as a guest.

 

Not a good sign, but pull the codes before you spend the bucks.

 

again thanks..
this is really useful...
as no garage is open for a couple of days anyway, i have the time to mess
about with this..

much appreciated..