Hello all,

I just got this 1996 XJ6 from my uncle. It looks super nice. I can't get it running.
Car was supposedly driven and parked at the house. After sitting for a few weeks the battery was dead and he put a new battery in it. The car never started and it sat there a year. One day he decided to put another new battery in it and it still didn't start. The dash to him was normal and the car cranked but would not start.
I have the car now. Yeah
Here is what I have done.
I notice the CEL turns on when the key is in the on position. when the majority of the dash lights turn off s does the CEL. No codes
When the key is in the on position the cooling fans turn on and stay on until the key it turned off.
There is no Fuel pump prime,
When the engine cranks there ir no pulse to the injectors or the the coils. B+ is there
When i connect a scan tool i get only a list of 2 items in the live view. Engine RPM = 32 and absolute throttle position = 0% no change depressing the throttle or cranking.
Tachometer does not move while cranking, however it does move slightly key on engine off while dash does self test.
Checked the fuses I think are relevant, none blown.
Replaced (twice) CPS
Purchased used ECU with non matching numbers and then with identical numbers, no change in anything
The ECU with mashing numbers was supposedly out of a running car.
The ECU and the connectors on the right side kick panel look clean and with no corrosion that I can see
Replaced battery with new battery.
I have 1 key and FOB. New batteries in the FOB and programed. Locks and unlocks well.

I have looked through the treads and have not found anything that has helped yet. It may be there, I just have not been able to come across it.
PLEASE HELP!!!
I am at my limit and I am guessing it is something simple that I am missing.
In my ignorant opinion I think the CEL light going of while the key is on and the fan staying on are related (not based on anything but my feelings) and there is some unit, ECU or other module not receiving power or ground.

 

I found in a thread that the CEL turning off with the rest of the dash lights indicated the immobilizer is active. I have not fount that thread again. I may have misread it.
I have dome all the tests I can think of and all the suggestions I have come across in this forum.
I called Jaguar to see if they can reprogram the immobilizer of the key (not sure what functions this vehicle has). Her in NJ the dealer told me they no longer work on Jaguars older than 2013.
I don't even know if it is programable.
BTW- This is my first Jag. I am determined to get it going.
I had the thought of trying to eliminate the security immobilizer somehow, nut have not found info on how to to that. Seems like something not normal to do.

 

Welcome to the Forums.

When the beast settles, please do an Intro in the New Members Area.

Your 1996 is known as an X300, yes, I know its XJ6 on the boot lid, but XJ6 has been used since about 1968 till current, covering many, many models.

A re-ask in that Section will get you many answers.

GGG ( AKA the Boss) will arrive shortly and move it for you.

Good luck.

 

Thank you