What have you done to your car today?

ericstell said:
thats a great idea i should do the same:iconwink:
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thanks go for it, its just on two small brackets where the ash tray was mounted. Might want to put it on straight unlike mine :lol:
 
installed a walbro in tank fuel pump yesterday. it only took about 30 mins, very easy. the walbro definitely made a difference to the car, better response, more power and an angrier exhaust note. my only concern now is if the car was running lean before and if that has caused any damage. good upgrade for the h6.
 
I have all the led upgrades too. Love em.I finally got my Hellas installed and mounted where I wanted them. They are on a remote control.

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Gidday Venom

Venom said:
installed a walbro in tank fuel pump yesterday. it only took about 30 mins, very easy. the walbro definitely made a difference to the car, better response, more power and an angrier exhaust note. my only concern now is if the car was running lean before and if that has caused any damage. good upgrade for the h6.
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Very good to hear that it has made such a difference mate.
I would think that the ECU would throw a CEL and code if the engine had been routinely running lean. Probably only happened under stress, and that's really only a tiny portion of an engine's running time, even when it is being stressed.

Not the sort of thing that springs instantly to mind either ... :iconwink:; but makes perfect sense after the event/revelation ... :poke: :)

Has your beastie got the fully sealed fuel system that the later models have got? i.e. fuel system always pressurised?

Probably something Taza should check out as well, going from the 2.0L to 2.5L.
 
Led interior lights were one of the best upgrades I've done, left the door open in the shed for 2 days and still started the car! Great for actually seeing what's in the car at night to
 
mr turbo said:
You're not wrong :eek:

Well done mate, especially, as & like Ratbag said, with a broken arm :cool:

P.S Hope your arm mends & feels better soon :)

Regards
Mr Turbo
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thanks mr.turbo .and i hope it getts better soon aswell .sucks doing so much so darn slow . my baby made it over 300 milles during my camping trip .it sure was cold with no camp fire.good thing we had beer and moon shine .or i would have been supper cold :rotfl:
 
The ecu has no real way of knowing it's running lean unless it detects knock.



Ratbag said:
Gidday Venom



Very good to hear that it has made such a difference mate.
I would think that the ECU would throw a CEL and code if the engine had been routinely running lean. Probably only happened under stress, and that's really only a tiny portion of an engine's running time, even when it is being stressed.

Not the sort of thing that springs instantly to mind either ... :iconwink:; but makes perfect sense after the event/revelation ... :poke: :)

Has your beastie got the fully sealed fuel system that the later models have got? i.e. fuel system always pressurised?

Probably something Taza should check out as well, going from the 2.0L to 2.5L.
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^ I would have thought that at least one of the many sensors in and around the combustion chamber would detect this as an abnormality.

However, it's a question of fact, not opinion, whether this is the case, or not.

In any event, the old fashioned check of one's exhaust pipe end will still allow one to tell. Dry and brown-ish/black-ish deposits indicates correct mixture and no oil burning/loss. Dry and very light-ish brown deposits indicates running lean; dry and very black indicates running rich; "wet" (oily deposits) and very black indicates that one's engine is probably cactus, or on the way out. This latter usually accompanied by the engine using oil consistently.

Roo1 used next to no oil between changes. Roo2 has used none in about 6,000 kms. Don't know what other people's experience is, but mine is that modern engines that are in good condition do not use significant amounts of oil between services (i.e. less than a litre in total).

Of course, if one is having one's oil level topped up with water from leaking head gaskets, the oil level may appear to be normal until the car is taken on a long run, when the water boils off, showing significant oil use. There will be significant evidence of foaming of the oil if the latter is the case. One can easily see the emulsified oil in the inside of the filler cap.

On my last trip to Brisbane in Roo1, it used no oil or water in 4,500 kms with the temperatures in the mid 30s and above most of the way. At 234,000 kms, I was still using the standard grade oil for the car (i.e. hadn't resorted to using a heavier grade to compensate for engine wear).
 
^ Thanks, Thunder.

I assume the ECU will throw a wobbly if it cannot achieve the correct mixture.

Is this so? Will it throw a CEL code?

I am not thinking of the case where one of the O2 sensors fails, but just when something causes the ECU not to be able to achieve the "correct" fuel mixture - e.g. an under-capacity fuel supply chain ... :iconwink:.
 
Nothing in particular to the cars, but I have set up a Flickr account today.

One specially for posting images on this and related sites.
 
Oxygen sensors only detect air fuel ratio in closed loop eg: engine is cruising under no or little load. 90% of cars are only fitted with what we call narrow band oxy sensors these are only capable of detecting a very narrow range of a/f ratio accurately. Usually around the 13.8-14.8 : 1 range, this is to make sure that the closed loop function of the ecu is functioning properly and make slight learning adjustments to the long term fuel trims.

Wide band oxy sensors usually around $1000+ per sensor have only just started to make it into mass produced cars. Basically manufactures have been forced to fit them due to ethernol blend fuels. These can detect a much wider range accurately 10 to around 15:1.

Even cars with wide band oxy sensors i'm pretty sure still completely ignore any reference data from the oxy sensors real time when in open loop. you have to remember in open loop the engine is truly working that hard that any feed back from the oxygen sensor is going to be too slow so manufactures prefer to simply use a complete reference map and rely on the knock retard tables for any running correction. Most manufactures also use now boschs latest dual map where the ecu has a high octane and low octane map.

Basically the ecu can find it's sweet spot between a per set max and min value based on it's knock history, gives much better long running performance then the old single map with a simple live knock retard value.
 
Until very recently the oxygen sensors main job is too make sure your cat/cats are working properly.
 
^ ^

I think that you are somewhat underestimating the speed of "decision making" of a computer running at even very slow speeds (e.g. even a 10 year old Pentium IV is doing around 1.8-4.2 billion clock cycles per second, and then the HPET (High Precision Event Timer) is chopping each of these clock cycles further subdivided. Remember, this is a CPU that's 10 years old ... An engine revs how fast? Let's say 10,000 rpm. That's around 10.8 million clock cycles per revolution. The HEPT effectively makes this calculations per second ...

Even the slowest, cheapest, modern dual core beats this to a pulp ...

My '93 Impreza "tuned itself in real time" according to the info current at the time (workshop manuals and owner's manual). The info was extremely explicit about this. I have experienced evidence of this occurring while driving.

Just a few thoughts ... FWIW.
 
I'm not saying the ecu isn't fast enough after all it's running the show. I'm saying the oxygen sensor isn't fast enough. plus the oxygen sensor is down stream. IE: if there is a lean out by the time the oxygen sensor is onto it. the piston crown has already coped it.

Don't get me started on clock micro code process vs clock speed, especially with regards to old netburst architecture. I really don't know how intel kept market lead with that crap. sure Prescott started to bring it back at a micro code level but only in theory. the applied practice of the way they implemented the threading to try and over come their stupidly long and complex core pipeline it never worked.

They've really come back strong now though.
 
Fitted some "wetseat" set covers.

https://www.thewetseat.com/



T
wetseat.jpg



They are a universal fit for seats with airbags, with an added panel at the back of the seat. This is because the kids love to put their dirty shoes on the back of the front seats. Very well made and fit very well for a "universal" seat cover. will see how they go but thumbs up
 
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