1997 jetta. second time in a month that the car

which engine?

cranks but will not start or remain running

tune up time, cold damp cause spark parts bad

oldest story in world. damp conducts, bad insulators do wet.

end result , bad spark.

flooding ? crank wide open throttle, (oper, guide, on start page.s...)_



check spark..,got spark to all cylinders

yes,

try test fuel, if not flooded,

starts then stalls?

Check your engine grounds (bundles of brown wires usually attached at firewall and other points around engine compartment) if these are corroded you will get same symptoms. Make notes when it occurs - IE: when wet out, damp, cold etc... My suspicions are grounds are corroded.

sounds like a short. i would check and see if there is any breaks in the defroster lines in the glass. maybe you have a bad connection

If it is happening more frequently in cold or damp weather it could be a spark issue. Wet or damp weather can effect spark plug wires if there is even minor damage to them (usually occurs durring rain). The other things that come to mind are the fuel pump and lastly the fuel line check ball that is in the fuel tank. If it is leaking then all the fuel in the line will drain back into the tank over night (pressure lost in the fuel line) and this will cause repeated, extended cranking when you first start the car in the morning or after the car has sat for several hours.

What about plug wires ? If they weren't changed, I would. Distributor Cap too, if it has one.

it could be the coil pack or even your immobiliser. try disconnecting your immobiliser. they seem to have bad-parts/dry-joints in them after a few years.

Damp is getting into your electrics. Spray all wires and disributor with WD40 after wet days or nights before trying to start it. That should cure it

the destriper cap on my car had moister in it .i cleaned it up and it started right up,

It almost sounds to me like a timing issue. Did you get it timed properly after the distributer was installed? Another thing is the timing chain. Aim a timing light at the crank marks and see if they are staying in the same place, or jumping around. If they are jumping your timing chain may have jumped, or be badly worn, and will need to be replaced.

Replace the distributor cap, rotor and ignition wires with Genuine Nissan Parts and you should be ok.