[xj-s] P0069 - Manifold Absolute Pressure - Barometric Pressure Corre

Just got the old ‘‘Check Engine Light’’ with ‘‘P0069 - Manifold
Absolute Pressure-Barometric Pressure Correlation’’…can anyone
give me a clue as to where I should look first…and then after
that…Thanks and Happy Holidays to All

John in Phoenix–
John in Phoenix, AZ
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

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John,

What year and model do you have? My early OBD2 manual
begins at P0101 and runs to P1796. I do not have some
of the later’96+ codes at my fingertips but will
research if I have model and year.

Just got the old ‘‘Check Engine Light’’ with ''P0069

  • Manifold
    Absolute Pressure-Barometric Pressure
    Correlation’’

Geoff Green

96 XJ6 X300, 95 XJS 4.0 conv, 76 XJ-S, 61 E-type OTS

Keeping track of every Jaguar XJ-S, with your help.
http://www.xjsdata.com

3.6 XJS Register paulzimmer@btopenworld.com

Eventer Register pascal.mathieu@perso.be

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In reply to a message from Geoffrey Green sent Wed 26 Dec 2007:

Hi Geoffrey…thanks for reminding me, year and model is
important…my Jaguar is a 1994 X-JS, 6 cylinder, drophead with 42K
miles. The ‘‘Check Engine’’ light came on after not having been
started in a week or so…the OBCD code that came up was P0069 and
my manual says the fault is in the ‘‘Manifold Absolute Pressure-
Barometric Pressure Correlation’’…I’m just looking for a probable
point to start a fault isolation procedure rather then go to my
local Jaguar dealership that, like most, want ALL your $$'s and
your first born, (well I would probably consider the ‘‘First Born’’
as a stand alone) anyway, if you or others can suggest a place for
this old helicopter mechanic to begin troubleshooting I’d
apperciate it…2 years ago I did a full dissambly of the induction
system to get to my MAP, some carb cleaner, a wire brush and I was
back in business. Take care be safe, wear that seat belt!

John in Phoenix–
John in Phoenix, AZ
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

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In reply to a message from Apache-John sent Wed 26 Dec 2007:

OK, FF 069 code is F-I-X-E-D!!! I did a quick disconnect of the
battery…waited 2 minutes and all was back to normal. It should be
mandated by law that ALL automobiles have an on-board diagonistic
system like the X-JS so the trips to Checker and Auto Zone or
having to purchase a code reader is a thing of the past…what a
rip off…next, I’ll tell you of the manifold ‘‘Check Engine Soon’’
light and the $$'s Infinity has made off me on my I30…

John in Phoenix–
John in Phoenix, AZ
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

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OK, FF 069 code is F-I-X-E-D!!! I did a quick
disconnect of the
battery…waited 2 minutes and all was back to
normal.

Well perhaps. Until the code appears again.

It should be
mandated by law that ALL automobiles have an
on-board diagonistic
system like the X-JS

Your XJS has an early code system that uses, well…
On Board Diagnostic Codes or OBDC. First mandated by
California, US for all cars. Many OBDC codes can be
read with flashing lights through the entry of secret
inputs. All this lead to the OBDC2 now in use. BTW
auto parts stores will generally read the OBDC2 code
for free.

John, your code is FF 69 not P0069 which is a
different animal. All OBDC were different from
manufacturer to manufacturer. This was confusing so
OBDC2 are the same across manufacturuers.

FF 69 is for a gear selection error relating to the
neutral safety switch or high rpm in neutral or drive
with a high load.

P0069 is as you state Manifold Absolute Pressure…
ususally a problem code that pops up on turbo cars.

Geoff Green

96 XJ6 X300, 95 XJS 4.0 conv, 76 XJ-S, 61 E-type OTS

Keeping track of every Jaguar XJ-S, with your help.
http://www.xjsdata.com

3.6 XJS Register paulzimmer@btopenworld.com

Eventer Register pascal.mathieu@perso.be

// please trim quoted text to context only— Apache-John apache1010@yahoo.com wrote: