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06-01-2013, 03:47 PM
Replies: 133
Views: 16,441
Posted By steveinfrance

Best leave it as is. Multiple earth loops are a...

Best leave it as is.
Multiple earth loops are a bad idea (current flowing everywhere, not as intended by the designe)r
05-27-2013, 01:09 PM
Replies: 294
Views: 11,261
Posted By JimC64

https://www.jaguarforums.com/forum/attachments/xk8...

https://www.jaguarforums.com/forum/attachments/xk8-xkr-17/44036-%2A%2A%2A-free-xk8-xkr-realgauge-prize-draw-%2A%2A%2A-car01-jpg?dateline=1369665006...
05-26-2013, 01:59 PM
Replies: 133
Views: 16,441
Posted By avos

As said, it may be that within the ECU (i.e. on...

As said, it may be that within the ECU (i.e. on the circuit board), there is a sharing of components with the same grouping as the AJ26 ECU Ignition setup.

So if the injector swap and cabling...
05-26-2013, 01:53 AM
Replies: 133
Views: 16,441
Posted By steveinfrance

No, each coil on plug is triggered directly from...

No, each coil on plug is triggered directly from the ECM.
Each coil is supplied with 12V from the ignition coil relay, ground, and two trigger inputs from the ECM.
I'm afraid you'll just have to...
05-24-2013, 06:13 PM
Replies: 133
Views: 16,441
Posted By plums

The battery question was preliminary to dealing...

The battery question was preliminary to dealing with ...



Drawing from the information given in JTIS for the AJ26 as used in the 1998 XJ ...

that year also uses the twin ignition modules and...
05-23-2013, 05:12 PM
Replies: 133
Views: 16,441
Posted By Norri

You are right, yours should be the middle set on...

You are right, yours should be the middle set on the diagram "alternate V8 cylinder numbering" for pre 2003 engines.
05-22-2013, 06:18 AM
Replies: 133
Views: 16,441
Posted By steveinfrance

I think you must be looking at a wiring fault. I...

I think you must be looking at a wiring fault. I assume you've cleared the codes and seen them come back?
Clearly the injectors are working so there's something the ECM doesn't like.
You can unplug...
05-21-2013, 05:59 PM
Replies: 133
Views: 16,441
Posted By xjrguy

Before you get too deep in this, go to this...

Before you get too deep in this, go to this thread and read my two papers on fuel trims. They will help you get a grip on trims so you will have a better idea what you are looking at, and why.
...
05-11-2013, 09:18 AM
Replies: 133
Views: 16,441
Posted By xjrguy

The LNE1684BB is the correct upstream O2 sensor...

The LNE1684BB is the correct upstream O2 sensor for non-supercharged XK8's starting with VIN# 031303, which is the start of the 1999 model year. So as long as it is billed as equivalent, you might be...
05-08-2013, 02:30 PM
Replies: 133
Views: 16,441
Posted By avos

Have a look at the diagrams (contains priceless...

Have a look at the diagrams (contains priceless info), that wil not only tell how everything is connected, but also what sort of voltages/effects to expect.

Here is the part for the heater ground...
05-08-2013, 10:45 AM
Replies: 133
Views: 16,441
Posted By steveinfrance

Been away so no input. It does seem to me the...

Been away so no input.
It does seem to me the problem is the low voltage to the O2 sensor heater.
Just to clarify - you pulled the connector off the sensor and measured volts across heater +ve and...
05-01-2013, 09:10 AM
Replies: 133
Views: 16,441
Posted By JSRoss

jaguar problem idea

I'm with the alternator also. That may not be the problem but it's sure the place to start. If the alternator is supposed to put out 14.8 volts and it's only putting out, let's say 11.8 volts, then...
04-27-2013, 01:33 AM
Replies: 133
Views: 16,441
Posted By avos

Fig 04.04, and the colors are exactly as you say,...

Fig 04.04, and the colors are exactly as you say, so you are looking at a wrong diagram.


Please note that some issues/codes only trigger the check engine light after the 2nd drive cycle.
...
04-17-2013, 12:26 PM
Replies: 133
Views: 16,441
Posted By xjrguy

Steve, that guy in France ;), put a bug in my ear...

Steve, that guy in France ;), put a bug in my ear a couple days ago about this. Seems like a weird one for sure.

First thing, with odd ones like this, with inexplicable codes seemingly off in left...
04-03-2013, 06:01 AM
Replies: 133
Views: 16,441
Posted By jimgoose

OBD-II compliance has been compulsory in North...

OBD-II compliance has been compulsory in North America since 1996, but it wasn't brought in for UK/Europe until 2001, and 2004 for diesels. BUT - certain high-end vehicles, such as Jaguar (due in...
04-02-2013, 06:07 PM
Replies: 133
Views: 16,441
Posted By Blue XK

I've not seen this fault before but have often...

I've not seen this fault before but have often found that seemingly random associated faults can often be down to a bad earth. It's the flashing brake light syndrome, one bad earth can affect a host...
03-31-2013, 04:11 AM
Replies: 133
Views: 16,441
Posted By steveinfrance

I keep on about this but if you've got an Android...

I keep on about this but if you've got an Android phone buy a Bluetooth OBD dongle off EBay
Android ELM327 V1.5 Bluetooth Super Mini OBD2 OBDII Auto Car Diagnostic Scanner | eBay...
03-30-2013, 08:13 PM
Replies: 10
Views: 747
Posted By GGG

No idea how you've ended up on the roof. This...

No idea how you've ended up on the roof. This should be more comfortable. :icon_lol:

37934

Rotate the original image 180 degrees with photoediting software. For a quicker result, I copied your...
03-30-2013, 07:30 PM
Replies: 10
Views: 747
Posted By JameyXJ6

Welcome to the forum Jag u are. I'm not really...

Welcome to the forum Jag u are.
I'm not really sure how you did that with your photo...lol!
03-29-2013, 01:52 PM
Replies: 133
Views: 16,441
Posted By steveinfrance

Do a hard reset ...

Do a hard reset
https://www.jaguarforums.com/forum/xk8-xkr-17/things-do-after-battery-reconnect-74146/
If the RP comes back can you read STFTs and LTFTs?
03-24-2013, 09:03 PM
Replies: 10
Views: 747
Posted By JimC64

https://www.jaguarforums.com/forum/attachments/new...

https://www.jaguarforums.com/forum/attachments/new-member-area-intro-must-5/27386-new-member-dallas-texas-car01-jpg?dateline=1355077469...
03-24-2013, 11:20 AM
Replies: 10
Views: 747
Posted By Safi

welcome to the forums

welcome to the forums
03-24-2013, 10:29 AM
Replies: 133
Views: 16,441
Posted By renaultvation

Hi Rollo I tried to pm you, but you may not...

Hi Rollo

I tried to pm you, but you may not be enabled yet. The specialist I use is Tim Revett who is based near the Sugar Beet Factory. His details can be found here: Tim Revett Prestige Vehicle...
03-24-2013, 05:45 AM
Replies: 133
Views: 16,441
Posted By steveinfrance

IT is possible that low battery voltage from a...

IT is possible that low battery voltage from a dysfunctional alternator can throw spurious codes but these are not usually among them.
It does sound like a wiring harness problem.
Start by...
03-23-2013, 03:51 PM
Replies: 10
Views: 747
Posted By Norri

Welcome to the forum Jag u are, Good to have...

Welcome to the forum Jag u are,

Good to have you with us.
The XK8 / R section is the place for help or advice XK8 / XKR - Jaguar Forums - Jaguar Enthusiasts Forum...
Showing results 1 to 25 of 27
 


 
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