XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

xjs questions

 
  #41  
Old 05-30-2019, 11:51 PM
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Those are the right plugs. Also try looking at rockauto.com for some parts. I believe the injector plugs are a standard Bosch 2 wire plug, nothing particularly special there.
 
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  #42  
Old 06-01-2019, 10:33 PM
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just ordered abunch of parts (coolant tank, coils, plugs, plug wires, distributor cap, distributor rotor) I will probably order the plugs for the injectors shortly but I want to see if I can find them for cheaper.

I have contacted a few companies and cant seam to get a quote for a radiator recore around denver so if anyone knows a shop that would help.

anyone know what plugs are used on the coils? the wires going to my coils are pretty heavily damaged
 
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Old 06-01-2019, 11:11 PM
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Pico #518-91 (4pin connector blk/orange) for coils I think.
 
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  #44  
Old 06-01-2019, 11:41 PM
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Originally Posted by VancouverXJ6 View Post
Pico #518-91 (4pin connector blk/orange) for coils I think.
thank you, just got the coil plugs as well.
 
  #45  
Old 06-08-2019, 03:38 PM
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is the a bank ignition coil at the front or rear of the engine
 
  #46  
Old 06-12-2019, 11:02 PM
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finished all the ignition stuff. nothing looked terribly bad when I redid it and the car is running fine. However I still do notice an inconsistency in feel and sound of the exhaust on the driver side. could this be a fuel injection issue? I will probably make a new injector harness shortly but was wondering if I should broaden my search to also include the injectors themselves as a possible cause. As soon as I get that sorted out I will probably try to pass emissions again and if so the real building can begin :P
 
  #47  
Old 06-12-2019, 11:09 PM
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Yes, the injectors themselves can cause a roughness/misfire due to clogging or pray pattern problems. Every Jag I've owned has had some sort of idle weirdness. In all cases having the injectors cleaned made a difference.

I recommend:

https://www.jaguarfuelinjectorservice.com/

Cheers
DD
 
  #48  
Old 06-13-2019, 01:12 AM
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Originally Posted by cdabc123 View Post
finished all the ignition stuff. nothing looked terribly bad when I redid it and the car is running fine. However I still do notice an inconsistency in feel and sound of the exhaust on the driver side. could this be a fuel injection issue? I will probably make a new injector harness shortly but was wondering if I should broaden my search to also include the injectors themselves as a possible cause. As soon as I get that sorted out I will probably try to pass emissions again and if so the real building can begin :P

I'm on my phone so maybe I missed it but is this a marelli car?

I always found a slight unbalance in manifold vacume.and exhaust on my 89 v12, some have said
Its normal and at driving speed it all balances out. I suppose you'd know if it wasn't. Before worrying
Too much try an italian tuneup, red line it for 30mins see how it goes.
 
  #49  
Old 06-13-2019, 09:40 AM
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Originally Posted by VancouverXJ6 View Post
I'm on my phone so maybe I missed it but is this a marelli car?

I always found a slight unbalance in manifold vacume.and exhaust on my 89 v12, some have said
Its normal and at driving speed it all balances out. I suppose you'd know if it wasn't. Before worrying
Too much try an italian tuneup, red line it for 30mins see how it goes.

it is a marelli. The exhaust on one side feels very smooth so I do feel something is going on on the driver side bank. I also believe this may be causing the emission troubles so I was going to attempt to resolve it before before I tried again. I read there can be intake manifold leaks that cause weirdness on these cars so i may try just torquing that down and see if it changes anything. I would be tempted to try an italian tuneup but Im not trying to melt a piston if one of the cylinders is running lean and I probably would like to address the cooling system first as well.
 
 
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