1997 xk8 got engine wet, p1643, p1000

SOURCE: failsafe engine mode light comes on, codes

Just a quick mention - for about a month my XK8 low coolant light came on intermittently. This week with no notice while driving normally I got Stability Control Fail and FailSafe Engine Mode and wtih great difficulty got the car back to where I started from (less than a mile). Two days later (when got time) and after a bit of research, I tried it again - same problem and a very unhappy engine. I then disconnected the battery for 15 minutes (probably more) to clear the engine codes as well as check all the wiring and vacuum stuff I could under the hood (at a Jaguar master mechanic's recommendation). No problems found but the car would start and immediately stall with the air intake hose disconnected from the intake butterfly. After I reconnected the air intake hose, she started and purred like normal. The problem is the BATTERY... It is low - I've known it for a LONG time BUT it always started right up and never skipped a beat. I intend to replace it tonight but fully expect that's the issue. I've had the car 6 years (it's a 98) and had NO problems except a dead taillight asembly.

Hope this is of value...

SOURCE: my 97 xk8 had that stability problem. now it will not start,

code p1111 is system pass code p0333 is knock sensor 2 high input (bank 2) code p1643 is can link engine control module/transmission control modual circuit/ network also see if your car has a fuel pump shut off switch also other safety features on cars to protect against damage trans and oil fluid pressure also ckeck your neutral safety switch