Lexus Repair: Lexus LS400: Problems when it rains/cold!!, lexus ls400, fuse box

Question
Hey Jason, hope your able to help me out with this situation.  I'm currently driving a 97 ls400 w/ 211,000km's on the odometer. And i've recently done my big tune up which included the waterpump, spark plugs and timing belt and all fluids have been flushed and replenished.  BUt recently i've been having htis problem with whenever it RAINS.. i would have a problem starting the car 2. the engine light/trac light would come on.. but after say like 1/2 hour or so.. it goes away.  And sometimes my radio would cut in and out...the other problem thats been happening is when it stops raining and the car sits for abit.. i would try starting the car and it doesnt start.  I know its not the battery because the lights dont dim.. and everything else is okie in the car. i dont hear no clicliclick sound.. i jjust dont hear anything.  BUT after say like 5 mins of constant cranking.. i would catch a spark and the car starts again.. THIS ONLY HAPPENS WHEN ITS RAINING OR WHEN ITS COLD/snowing.  I've recently had my alternator changed already... battery is less then 3 years old.. so i dont konw what it is.. and the last time i changed my caps/rotors was probaly around the 145km range.. so please do give me some advice and help if you can!

thanks  

Answer
Hello Jimmy,
  1.  Do you have access to a scanner? I would try to scan for code.
  2.  Did the vehicle turnover when you try to crank? Since this problem only occur when it's rainning outside.  I would for any water leak in the fuse box and ECU itself.  Thank you.
JP IMPORTZ
DALLAS/PLANO INDEPENDENT LEXUS AND TOYOTA
SERVICE, REPAIR AND PEFORMANCE
WWW.JPIMPORTZ.ORG
214-221-3135