2003 Tiburon - no spark

Hi,

I have a 2003 tiburon that is getting no spark. The sensor fuse in the
engine compartment fuse box keeps blowing immediatly when i try to start, so
i suspect
that it is causing the no spark condition. Using hyundai's interactive
schematic index i see the engine compartment sensor fuse controls the
Canister close valve directly and also the canister purge, MAF, TPS, Cam and
Crank position sensor as well as the idle speed control. I am assuming one
has a short or has gone bad.
I will be getting a code scanner in a few days so hopefully it will indicate
which one has the problem. My question is has anyone had one of these fail
causing a no spark condition. I am leaning towards the canster close valve
or purge, because i think the others would let it start, but it would just
run bad. Any help is apprecaited.

Thanks in advance

 

A scan tool won't help. You've already located the problem - an apparent
short on the power source for several critical devices. The cam and crank
position sensors are what tells the ecm when to fire which coil. You need to
find what's blowing the fuse. The likely place to start is to find C42 /
C142 (you don't say which engine), and open up the pins leaving it, and look
at which device has the short on it's power supply lead. Use a meter, don't
keep putting fuses in it. You might also look at the resistance to ground on
the downstream side of the fuse. Start disconnecting things like the TPS, O2
sensors, etc., and see what makes the short go away.

 

Thanks for eveyones help, it really helped me out. I tracked it down to the
oxygen sensor. The wire was pinched right were it goes into the sensor.
I did blow the fuse in my mutlimeter also, like some of you warned. LOL
but i will trade the 1.29 fuse for the money the dealer would have charged
tracking it down.
Thanks again.

 

good work!