I installed a 6.0 L run by an Electromotive EFI in my 1986
XJS removing original ECU, wiring and components.
The trip computer functions in all modes except those that
have to do with fuel measurements.
What ican be suggested to regain those functions?
Thanks Tom xjs–
Tomxjs
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Has anyone installed the trip computer in a 95 4.0? I read where it
was an option. I would like to see what was involved and if the
wiring harness is complete. The 95 has the OBD II system and would
provide the fault codes as well as trip information.
Thanks,
Ron–
Ron - 95 XJS Coupe 4.0 & 99 XJ8L 4.0
Lawrenceville Georgia, United States
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In reply to a message from rppetrey@bellsouth.net sent Thu 20 Dec 2012:
If you find out it’s compatible, I have one available.
Contact me offline for details.–
The original message included these comments:
Has anyone installed the trip computer in a 95 4.0? I read where it
was an option. I would like to see what was involved and if the
wiring harness is complete. The 95 has the OBD II system and would
Ron - 95 XJS Coupe 4.0 & 99 XJ8L 4.0
–
equiprx
Pacifica, CA, United States
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In reply to a message from equiprx sent Thu 20 Dec 2012:
Should be an easy fit. I have a 1996 and the wiring is
behind the clock. Pop the clock out and take a look to see
if you have an unused plug.
eBay is selling the wood trim you would need to fit the trip
computer in. I ended up buying mine from JDHT…they still
sell it!
I bought my trip computer from Welsh Enterprises. I think I
paid $200 even. There seem to be two for sale on eBay, both
carrying a ‘‘Best Offer’’ tag.
Seemed to take a few hundred miles for the thing to report
back properly. Seems strange, but I swear it wasn’t as
accurate for the first few tanks of gas…–
1996 XJS 2+2 Convertible with 4.0L AJ16
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In reply to a message from rppetrey@bellsouth.net sent Thu 20 Dec 2012:
Oh, if you’re looking for it to report codes, I’m not sure it
does that anymore.
The earlier models did because there was no OBDII.
I haven’t had the check engine light come one since I
installed the thing, so maybe it will show codes, but I doubt
it.–
1996 XJS 2+2 Convertible with 4.0L AJ16
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In reply to a message from rppetrey@bellsouth.net sent Thu 20 Dec 2012:
The trip computer does not recognize OBDII codes nor will it
display them. It may, or may not display the older codes when used
with the AJ16.–
lockheed 92 XJS Cpe/97 LT1 Miami FL/ 96 XJS Cv 4.0 Austin TX
Austin, TX, United States
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In reply to a message from lockheed sent Thu 20 Dec 2012:
My ‘‘Driver Handbook’’ on page 47 says it will report FF11 to
FF99 codes which I believe are obd I based. But I am most
interested in the computer functions. The computer in my old
86 XJ6 was reasonably accurate. I just hope I have the wiring
harness for it. Does anyone know what size the plug is?
Thanks,
Ron–
Ron - 95 XJS Coupe 4.0 & 99 XJ8L 4.0
Lawrenceville Georgia, United States
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In reply to a message from rppetrey@bellsouth.net sent Thu 20 Dec 2012:
I would much rather ditch my computer and go with just the
clock…it looks like ‘‘I love the 80’s’’ and isn’t the most accuate
thing out there. Just my $.02–
1986 XJS, 5.3 Litre V-12, 1997 XJ6L, 1974 Triumph TR-6
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In reply to a message from JT sent Fri 21 Dec 2012:
By trip computer, are you referring to the head with 8 buttons? It
usually shows clock, but can show mileage, fuel used, trip
distance, etc.?
On my 95 I can get no OBD info from the OBD port, although the port
is there and has power. I can get the FF codes on the display head
when the key is first turned to on…and I can clear them with a
battery disconnect, but not with the OBD.
My impression was that the 12 cyl was still stuck in the dark ages,
although the 4.0 had moved on to OBD tech. Probably another reason
the 6.0 was discontinued that year. One good point about the
computer, it still works when the speedo and odo stop on occasion!?!
John–
CJ95
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In reply to a message from CJ95 sent Fri 21 Dec 2012:
I have the time on:
I don’t need another clock in the car. The computer might
scream ‘‘I Love the 80’s’’ (I agree, it does), but at least it
provides some kind of information I didn’t already have.
I’m glad I bought it. I also made an easy conversion to
LEDs for the computer. I think if you check my posts,
you’ll find out what I did…it was very simple.–
1996 XJS 2+2 Convertible with 4.0L AJ16
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I have the time on:
- my wrist
- my phone
- my car radio
I hear ya. For a while there, EVERYTHING came with a clock display.
Even my toaster oven has one. Now, at least, some products –
including the sound system that came OEM in my Mazda – have the
option of turning the clock display off so you’re not staring at
several different clocks and noticing when one is a few seconds off
of another.
The profusion of little indicator lights gets old, too. I now have a
Blu-Ray player in my house with a red indicator light that tells you
when it’s OFF. Push the button to turn it on and the red light
disappears so you can watch TV without staring at a red light.
– Kirbert
// please trim quoted text to context onlyOn 21 Dec 2012 at 6:46, Veekay wrote:
At 09:40 2012-12-21, Kirbert was heard to say:
I have the time on:
- my wrist
- my phone
- my car radio
GPS, which is a highly accurrate time source.
I trust the watch on my wrist. Solar powered (no, doesn’t only work
during the day - it recharges the batteries), and daily, it resets
the clock from NIST radio signals.
The profusion of little indicator lights gets old, too. I now have a
Blu-Ray player in my house with a red indicator light that tells you
when it’s OFF.
In all fairness, it’s telling you that it is in STANDBY - able to
respond to a remote command to start doing things. If it was truely
off, you’d have to get up and turn it on manually.
The tiny LED in the volume dial on our surround amplifier went duff a
while back, and I ended up putting a sliver of white adhesive label
onto the dial to indicate position, as from across the room, the LED
told you where the volume was (this unit doesn’t display volume
percentage on the display).
Push the button to turn it on and the red light
disappears so you can watch TV without staring at a red light.
Suggestion: don’t put your player in the middle of the spot where
your teevee should be. I put my teevee there.
As for useless LEDs, I’ve got you beat. I have a couple of LED
flashlights - a headband one, and a small cylinder type. They work
great, no complaints there. However, both of them (from the same
mfr, and IIRC, came as a pair in one package), have an led that
flashes continuously, perhaps every couple of seconds WHILE THE
LIGHTS ARE OFF to - get this - show that the batteries are
good. This of course eats up the batteries in a hurry.
I end up opening up the endcap so the batteries don’t make contact,
and then when I need to use them, close the thing up and go.
— '88 Jaguar XJ-SC 5.3L V12 (LHD) ‘Black Cat’
Sean Straw '85 Jaguar XJ-S 5.3L V12 (LHD) ‘Bad Kitty’
Sonoma County, California '91 Jaguar XJ40 4.0L (LHD) ‘Trevor’
http://jaguar.professional.org/ '69 Buick GranSport 455 V8
// please trim quoted text to context only>On 21 Dec 2012 at 6:46, Veekay wrote:
In reply to a message from rppetrey@bellsouth.net sent Thu 20 Dec 2012:
The Trip Computer is a straight plug-in on a 1995 car.
The wiring plug is NOT behind the clock, it IS the clock
plug. It’s a multi-purpose plug that is connected either to
the clock or the Trip Computer, whichever was fitted.
As mentioned, you’ll need to buy a new veneer strip to
match.
It will show the FF codes where appropriate.
It doesn’t take time to ‘‘learn’’, it will start reporting
instantly. You’ll find that the ave. fuel consumption will
be accurate to about 3.9% of actual, at least that is how
mine has been in 10 years of very detailed comparison!
As regards monitoring OBDII codes from the engine ecu, I use
a very simple Bluetooth OBDII plugin and either one of the
free laptop diagnostic packages supplied with the adapter,
or else the Torque Pro Android phone app. Total cost of
adapter and software �11!!
Hope that helps.
Good luck
Paul–
Paul 95 XJS 4.0 Convertible, 97 XJ8 Sovereign LWB 4.0
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GPS, which is a highly accurrate time source.
Highly! As in, within the amount of time it takes light to travel
about 10 feet!
As for useless LEDs, I’ve got you beat. I have a couple of LED
flashlights - a headband one, and a small cylinder type. They work
great, no complaints there. However, both of them (from the same mfr,
and IIRC, came as a pair in one package), have an led that flashes
continuously, perhaps every couple of seconds WHILE THE LIGHTS ARE OFF
to - get this - show that the batteries are good.
You’ve gotta wonder what the designers were thinking there. “Hey,
I’ve got a wonderful idea for a feature that nobody else offers!”
– Kirbert
// please trim quoted text to context onlyOn 22 Dec 2012 at 7:46, Sean Straw wrote:
In reply to a message from Paul Sinnott sent Sat 22 Dec 2012:
After looking behind my clock, I found it has 3 seperate
connections. 2 single wire connections on each side with the a
small harness plug in the middle of the clock. This does not match
the wiring diagrams I have that show a single plug connection for
either the clock or trip computer. So I think Jaguar, under the
dark influnce of Ford, changed the wiring harness to cut cost. I
wounder what body number this started? Mine is 199271.–
The original message included these comments:
The Trip Computer is a straight plug-in on a 1995 car.
The wiring plug is NOT behind the clock, it IS the clock
plug. It’s a multi-purpose plug that is connected either to
–
Ron - 95 XJS Coupe 4.0 & 99 XJ8L 4.0
Lawrenceville Georgia, United States
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In reply to a message from rppetrey@bellsouth.net sent Tue 25 Dec 2012:
I’m 225228 and I had no issue with replacing the clock
with the trip computer.
I really think Ford did a lot of great things for the XJS,
it’s why I (and you) chose the facelift model to begin
with. I prefer the styling (particularly the rear lights)
of the pre-facelift models, but prefer the reliability
that Ford helped bring to the XJS.–
1996 XJS 2+2 Convertible with 4.0L AJ16
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In reply to a message from Veekay sent Thu 27 Dec 2012:
Did your clock have two separate spade terminals with wires and a
small white harness plug in the lower back? I would like to install
the computer but I don�t want to purchase one without knowing it
can be done. I am not interested in cutting into the harness. And
yes Ford did improve their overall quality. I wish Ford had not
sold Jag to TaTa.–
The original message included these comments:
I’m 225228 and I had no issue with replacing the clock
with the trip computer.
I really think Ford did a lot of great things for the XJS,
–
Ron - 95 XJS Coupe 4.0 & 99 XJ8L 4.0
Lawrenceville Georgia, United States
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In reply to a message from rppetrey@bellsouth.net sent Tue 25 Dec 2012:
I also think Ford influence helped improve the XJS in many ways,
but I do fault Ford for ruining the oil leaks self rustproofing
system.–
lockheed 92 XJS Cpe/97 LT1 Miami FL/ 96 XJS Cv 4.0 Austin TX
Austin, TX, United States
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In reply to a message from lockheed sent Thu 27 Dec 2012:
After some additional searching I found that the wiring on the
back of my clock was part of a short harness that lead to a
red plug that the trip computer also uses. Same as some of you
had said it should be a simple plug in change out, and so it
will. I have ordered the computer fascia and now all I need is
to find a late model trip computer. When I do the change out I
will document it with pictures.
Thanks for all your help.
Ron–
Ron - 95 XJS Coupe 4.0 & 99 XJ8L 4.0
Lawrenceville Georgia, United States
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In reply to a message from @rppetrey sent Sun 30 Dec 2012:
I picked up my trip computer today and noticed it did not use
a friction mount like the clock and switches do. I hope there
is bracket behind the wood panel that support the computer. I
noticed there are threaded holes on each side of the computer
for mounting to a bracket of some sort. I did not receive the
two screws for the side mounts so I will need to pick up the
correct size. When I get this all together I will document
with pictures the change to convert.
Ron–
Ron - 95 XJS Coupe 4.0 & 99 XJ8L 4.0
Lawrenceville Georgia, United States
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