2003 Vitara hot starting problem

[ODH]

Have a '03 Vitara w/2.0L engine; 77,000 miles.
Vehicle starts fine when cold and runs great.
However, when engine is hot, it will not start
until it cools for approx. 20 minutes.
I have checked and cleaned all sensor connections;
cleaned MAF element with recommended spray;
used quality injector cleaner in fuel twice.
Could this be cam shaft position sensor?
Does anyone have experience with this problem
on this vehicle? Thanks for any and all input...

[jtgh]

sure:
you need only discover 2 things, and 1/2 the problems disapear

1: are you losing spark ?
2: are you losing fuel.?
keep an open mind, it can be either.

both are easy to test.
place a dummy sparkplug, plug shell touching valve cover. and crank and look for fat blue white spark. (use a fresh any heat range plug for the test not some old fouled plug)

FUEL:?
even easier,
pull any vacuum tube to engine manifold at the manifold it self.
spray (with red straw) Instant start into induction.
if it starts ,then you lost fuel.

below is worse case: but the above will work.
Cranks-but-no-start

[ODH]

Thanks for the response .. and the pointer to all of the additional info.

[ODH]

Just an update on the starting problem when engine was hot; I replaced the cam shaft position sensor two weeks ago and the problem has not occurred since then. Thanks again for the input. ODH

[jtgh]

no spark.

bingo

hot soak electronic fail , not an easy problem to find for anyone.!

you did good.