Sounds like the ECM is setting the mix too lean to start, which
like you think is probably a bad sensor somewhere. Yep, you're
going to need a scanner unless you want to guess & replace until
you get lucky. Fortunately OBDII scanners are not that expensive
anymore. I got a full up diagnostic kit that connects to my
laptop PC for ~$300. The handheld ones that just read the scan
codes are more like $60.

Good luck,

Don W.

Electraglide wrote:

On Wed, 20 Jul 2005 01:24:22 GMT, Electraglide
wrote:
First of all thanks for the reply's. When I run the boat and shut it
down I have the same start problem, slow to start. The spark and
timing is controlled by the ECM, timing's set to zero and then the
comp. takes over. I don't have a scanner to read the sensors real
time but I think that's gonna be my problem. Which ever sensor the
ECM uses for the starting process must be bad. The thing is I don't
know which one it is. I'm leaning towards the MAPT sensor but I'm not
sure. And yes the engine is direct injected so the start process
should be almost instantaneous when I hit the key I would think.
Once again thanks for the reply's I guess it's just a work in progress
until I get my hands on a OBD ll scanner.l