Excessive fuel use?
#21
#22
I'm with police666. Earlier S Types had problems with parking brakes binding. It was pretty much licked by 2003, but you never know.
And while it is reasonable to initially think that a car with a a dirty air filter would get worse gas mileage, think about it for a minute. The car automatically compensates for restricted airflow from a dirty filter (MAF sensor), to maintain a near stoichiometric (sp) ratio. So as air flow decreases, so does fuel consumption. So long as you did not try to compensate for the reduced performance, wouldn't you get better mileage?
Or would it be the same?
I am confusing myself here.
And while it is reasonable to initially think that a car with a a dirty air filter would get worse gas mileage, think about it for a minute. The car automatically compensates for restricted airflow from a dirty filter (MAF sensor), to maintain a near stoichiometric (sp) ratio. So as air flow decreases, so does fuel consumption. So long as you did not try to compensate for the reduced performance, wouldn't you get better mileage?
Or would it be the same?
I am confusing myself here.
#23
#24
#25
If you have OBD-II logging capabilities, it may be helpful to log LTFT while in cruise.
It will show whether or not the actual amount of fuel supplied to the engine differs from the amount of fuel the ECM expects to deliver to the engine for the given conditions as programmed into the default tables.
It will show whether or not the actual amount of fuel supplied to the engine differs from the amount of fuel the ECM expects to deliver to the engine for the given conditions as programmed into the default tables.
I carried out the EPB re calibration procedure as detailed elsewhere on the forums two weeks ago, sadly it didn't seem to help
Thanks everyone for the ideas! Very much appreciated!
#26
#27
#28
22 sounds too low. I get over 24 in my STR.
Get an OBD tool with live data (like an elm327) and at least check a ton of things are plausible. Everything else will cost more.
The following 2 users liked this post by JagV8:
Jumpin' Jag Flash (04-24-2013),
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#30
Join Date: Oct 2009
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Grant wrote the 98 RON thing to see who, other then the usual suspects, would take the bait. We all know that extra octanses only works if you add at least 5 different randomly selected miracle-in-a-can additives from the local FLAPS.
#31
I think ... in fact, I know that Grant is perfectly serious in his assertions with regard to both octane and ethanol.
Furthermore, I am in agreement for the reasons stated in multiple other threads in great excruciating detail. The "you're joking of course" was a feeble attempt at sarcastic humour.
And no snake oil thank you very much.
Furthermore, I am in agreement for the reasons stated in multiple other threads in great excruciating detail. The "you're joking of course" was a feeble attempt at sarcastic humour.
And no snake oil thank you very much.
#32
I think ... in fact, I know that Grant is perfectly serious in his assertions with regard to both octane and ethanol.
Furthermore, I am in agreement for the reasons stated in multiple other threads in great excruciating detail. The "you're joking of course" was a feeble attempt at sarcastic humour.
And no snake oil thank you very much.
Furthermore, I am in agreement for the reasons stated in multiple other threads in great excruciating detail. The "you're joking of course" was a feeble attempt at sarcastic humour.
And no snake oil thank you very much.
I just got a nice 750ml Grants Whisky from teh wife for being a "good boy and sorting the brakes on her S Type", so later tonight the keyboard is going to look real weird.
Sense of humour, again, I am the weirdest I know, having gone "upstairs" twice in '92, thanks to a work accident, I have the strangest outlook on life.
YOU ARE A LONG TIME DEAD, AND YOU DONT COME BACK FOR SECONDS. Mess this one up at your peril.
I reckon the "octane science according to Grant", from actually driving the car/s on each spec for 20000kms at a time, and not theorising (whatever that word means) is really SPECIFIC mainly to my XJ-S V12 HE, an ancient 1985 beast, and NO pollution rubbish, hell it dont even have a balance pipe, AAV, PCV system, and certainly DID NOT come with O2 sensors. Basically one step above carbies. Knock sensors, in your DREAMS, Engine management, same DREAMS, its got a Lucas distributor for heavens sake, and we all know their "fine tolerences", dont we??.
I reckon it "may" apply to the AJ16, and certainly the S Type, but at 4c/ltr difference, Grant DONT CARE.
Snake oil, nah, got lots of dead snakes here if you want some to make oil, HAHAHAHA, and I only had one drink.
Ethanol, feed it to the pollies, they need all the help they can get.
#34
Join Date: Oct 2009
Location: Perth Ontario Canada
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#35
#37
I've been looking around at sites like (for example) Service Parts | Jaguar S Type | British Parts UK , to try and figure out which manifold gasket I need to buy for when I replace the spark plugs this weekend, I'm not entirely sure which one I need, can anyone point me at the right one?
Cheers
Cheers
#38
#39
#40
Just in case anyone was interested, so far it turns out that the car had the completely wrong plugs in it, in the end I just left it with an Indy for the day for a service and new plugs, so I don't know what plugs were in it. Even the heat range of the plugs was wrong apparently.
I'd still be interested in anyone can help with the log I posted above.
I'd still be interested in anyone can help with the log I posted above.