I have a 1986 jag xj6, 4.2L. Theirs a problem with idle. You start the car everything ok. But 2 or 3 minutes later it starts to go down. If you run the car for about 25 mts, idle goes down until it dies. I´ve check almost everything and change everything, until I bought a multimeter. When I checked the voltage coming from ecu to tps, there are only 2 wires on the terminal. One sends me 12 volts, the other with ignition on, sends me something strange, 0.100, 0300, 0.500 and then repeats the cycle. Same thing with coolant sensor, 12 volts in one the other is a ground that fluctuates. Fuel injectores have some 12 volts other 11.4 etc. Really strange things that i havent seen in other cars with EFI system. Can someone please help me, i need the voltage send from the ecu to every sensor, coolant, throttle sensor, AFM, fuel injectors. Please help me cause Im going crazy and i love my car.

 

Welcome to the forum comarpe, I'll leave this here because it is your first post, but you need to post technical questions over in the XJ6 section for your car.

Here is just used to welcome folk.

 

Hello, you should follow Translator's advice
We have immense information as well as hilarious stuffs lol
Happy driving

 

Hello and welcome to jaguarforums.com. I know that you are anxious to get started and we are anxious to meet you and talk about your car. We have a baseline / criteria that must be met before full access can be granted. Please enjoy the forum and be patient once the baseline has been satisfied full access will be granted. Please continue to post and accept my welcome to the forum.

Oh one other thing you need to put your car details in your signature. I am speaking of the Year, Make & Model. Without it you may not get the input you are looking for.

Please take a moment and read the information provided to you explaining the rules. Be patient and enjoy the site.

 

Welcome to the forum Comarpe,

As translator pointed out this section is for introductions, I've moved your discussion with Doug over to the XJ6 section you can find it here https://www.jaguarforums.com/forum/s...ad.php?t=49515

I expect you will attract more response to your problem there.

 

welcome to the forum.......Good to have you here onboard one of the friendliest sites around.
Jump in and enjoy everything thats going on....there's usually plenty in all sections.

I hope we may be able to help and offer some suggestions /help as needed

In the meantime I've manually upgraded you to full forum access so you can access all the sites features