FORGIVE MY IGNORANCE BUT I SEND TO THE TECHS ON THE BOARD- AND IN TECH HELP- AS IM RUNNING OUT OF TIME-53,000 MILES- OF COURSE OVER WARRANTY
------

(new battery 2 month old)

car cranks immediately catches sputters dies.
wait a few minutes- starts right up.

in 2- 4 years happened 3-4 times.
this time 4-5 x then waited 20 on started right up.
took to my fiends garage with code reader- I mean like a jiffy lube place but he has a reader-
"ERROR CODE - PO232 FUEL PUMP A SECONDARY CIRCUIT HIGH"
NO CHECK ENGINE LIGHTS THEN RUNNING FINE.

I call jag they are talking fuel sensors - pumps all easy 1g.
I live in NY and the three placs within 50 miles of me don't really know what they are doing,
One guy suggested a radiator flush at 30k as its "normal" AND TO USE AN ANGINE ADDITIVE TO REMOVE GUNK!!!!

I have read all about this error code but not pertaining to jag xf.
I really need some help
THEY COULDNT EVEN TELL ME OVER PHONE WHERE FUEIL FILTER IS - I WAS THINKING FIRST CHANGE FILTER AND AIR FILTER.
BEYONE THAT -IM TRULY WORTHLESS- UNINTALL LINES ETC AND AT THEIR MERCY.
AND TODAY AND SINCE THEN RUNNING AND STARTING FINE BUT……….

 

This one is gonna require some diagnosis to pin down. P0232 is a fault between the fuel pump driver module and the ECM; basically it has interpreted a short to power on the monitor circuit. Could actually be a short to power or maybe even the driver module itself. Since it is running OK now, I'd advise clearing the faults out, and then checking it a couple times a day to see if it shows up again. Then once the starting issue hits again, go check for that code immediately after. That way you can either prove the P0232 is related to the start problem, or something spurious and unrelated.

Good luck!

 

many thanks- I know if I bring it into jag- its a nightmare- its shocking in NY all 3 are really terrible-

 

Jaguar P0232 OBD/DLC Error Code - Fuel Pump Secondary Circuit High


i really need someone on NY area who knows the heck they are doing

 

OK IM NOT SURE WHERE TO POST THIS XF FORUM OR TECH!

A week ago I wrote I had a P0232 error code.
Car would immediately crank- catch- the die- like sputter- like no gas.

Had car from 0 miles to 53k miles happened like 2-3 times.

I brought car to JAGPRO in Bellmore - many Jag owners on this board seem to hold him in high regard.

The P0232 secondary circuit high.

The owner spent some time said its all related to "Fuel Trim"
could be as simple as Oxygen sensor or as HUGE as ECU unit failure.
$100-$thousands.

since this happened 2 weeks ago - has not happened once.
did not clear code.
any ideas?

 

Im thinking because its only happened 2-3x in four years-ignore it- running fine.
then i think its like bad tooth- stops hurting comes back from cavity 145. to cap 2k

 

The P0232 basically indicates voltage on the fuel pump circuit when there should not be. Have you tried replacing the fuel pump relay, or looking for moisture or corrosion where the relay plugs in? I do not have enough info to dispute JAGPRO, but I do not see how fuel trim, and the P0232 would be related.

 

jwmcity,

I guess the mechanic at JAGPRO connected you car to an OBD reader (OBD = Onboard Diagnostics)?

Fuel trim is a task managed by the Engine Management System, which is housed in the Engine Control Module (ECM) aka ECU. The ECM reads the values from the upstream O2 sensors, which measure the O2 concentration of the intaken air flow, and the downstream O2 sensors which measure non-consumed O2 behind the catalytic converter. With these values and taking other current values into account too the ECM calculates (reads from persitent memory) the amount of fuel to be injected for the moment's optimal combustion and emission values.

Under normal conditions there's not much to trim for the ECM. The values for the short term fuel trims (stft) and the long term fuel trim (ltft) vary a little bit around 0%.

Now, if the ECM sees that there is more O2 left in the emissions than expected it "thinks" that there's not enough fuel in the mix and raises the amount of fuel injected into the cylinders. stft values accordingly raise to the positive side. If the conditions that lead to the O2 surplus last, ltft rises and remains over normal while the ECM resets the stft to normal.

Vice versa, if the ECM measures too much CO in the emissions, it "thinks" that the air/fuel mix is too fat and lowers the amount of fuel. stft and ltft go to negative percentage values.

All is brilliantly explained in this thread:

https://www.jaguarforums.com/forum/g...ed-quiz-49317/

So the questions are:

• Is the mechanic concerned about the ltft values?
• What are the fuel trim values he measured?
• Were there other fault codes?
• Does one of the O2 sensors constantly give 0V values (which would indicate a failed sensor)?
• Where does the mechanic see the connection between fuel trim values and P0232?

 

I've merged your three threads on this problem into one - it is counter-productive to have multiple threads on one subject.
Hope you get an answer soon.

 

Well done, Steve.

 

A possible connection between fuel trim and P0232 is an internittent fault in the fuel pump circuit. A momentary lapse would see lowered pressure and so a lean condition causing fuel trim to increase fuel supply a bit. As the pump fault is intermittent fuel will be trimmed back as soon as normal fuel pressure is re-established. I'd check all connectors in the fuel pump circuit as a starter.

 

(yes he was using an obi reader) but remember its New Years and I have to bring it back.

I have a new battery installed by jag like 3 months ago.
car sits for 24 hours… I drive 1/2 mile

get back in car starts right up but on the led screen (nab screen)
red battery warning
"PLEASE SWITCH ON ENGINE OR ENTERNTIANMENT SYSTEM WILL SHUT OFF IN 3 MINUTES"

the engine was idling for like 30 seconds…
so now Im thinking maybe the PO232 code plus above might mean the "secondary fuel pump" might be drawing power" even when off?
I dont hear a thing-when i turn off its quiet as mouse

 

Low battery can give all sirts of strange messages and symptoms. If you drive lots of short journeys the charging system may struggle to keep the battery full. Also, a battery being new doesn't mean it cannot be faulty.

 

what KILLS me… I have pinto's to mercedes to bmw to audi….
then Jag 2009 xf.
leased in 39 month…omitting pads and squeaky sun roof which was fixed immediately
BEST MOST TROUBLE FREE CAR I EVER HAD SO BOUGHT IT
IF HIT 51K - I THOUUSAND MILES OVER WARRANY>? PROBLEMS
AND THE DEALERSHIPS INY MY AREA
LONG ISLAND QUEENS - HUNTINGTON
TRULY DO NOT KNOW WHAT THEY ARE ARE DOING SO IM HOPING JAGPRO WHICH U GUYS SUGGESTED CAN FIGURE THIS OUT

AS GOD IS MY WITNESS - NEXT AUTO- THE MOMENT IT HITS WARRANTY IM DONE…… I SEARCHED EVERY CAR AT 48K
NOTHING "DID IT" FOR ME LIKE THIS XF
4 YEARS AGO I SAT IN AND SAID "DONE" THIS IS IT - ALL OTHERS SO GERNERIC

 

I don't own an XF and I don't claim to be an XF expert. However, from what I read online and in magazines the 2009 XF struggles with a couple of teething problems which are overcome in later model years. So you might go for a 2012 or 2013 XF next.

 

Does this happen during cold start (ie morning) or hot start ( after driving car for awhile you stop at store for about 15 mins and try to start car again) or does it not matter?

 

it never really mattered- BUT last 2 times was after a short 8 mile trip reg temp-

now happened that once? never again
but it will- one of my gremlins since first month

 

Xf VIN RANGE R00001- R47153 WITH 4.2L
On vehicles fitted with the 4.2L naturally aspirated engine only, the engine may experience a rough start or stall following a hot soak of 15-20 minutes. there is a ECM reflash for that concern.

 

I called jag they said they see nothing about this

 

IF, I say IF, you have the described condition in the attached......

Ask 'em again.


Cheers,