I swapped the MAF out for a tried and tested one from my other XJS. I also tested the voltage from the MAF harness and they're all reading correct so I dont suspect that is at fault. I've got thr harness for the crankshaft sensor out and drying incase there is any moisture, I will also clean it before plugging it back together. The coils are out and drying just incase they saw any moisture, however they were all bone dry as I pulled them out.

 

I am starting to think this has to do with possibly turning the car on and of to move it versus the water bath , which is still not advisable; but it seems like the car is flooded. If she catches again give her gas until she remains on.

 

It does seem to follow that it could be flooded. I've been gassing it as much as I can within reason, generally not letting it go beyond 3000rpm. I'll keep trying though, would hate to rev a cold engine too much and cause some damage!

 

Hi, I don't know why but for some reason I decided to log into my account on the forums here and saw this. For my 96, the no start after wash issue was caused by water running down the ECU wires and into the ECU connectors. The ECU is in the passenger side foot well. Water from me washing it followed the harness through the bulkhead and got into the ECU connectors. If I remember correctly, I disconnected the battery, and pulled the connectors to the ECU. Dried up the harness side connector cavities. I then took the ECU to my bench and opened it up and dried it out. I let it sit for a few days to make sure it was completely dry before connecting the ECU back up to the harness in the vehicle. It started right back up with no issues.