Fordmods Logo

Tricking sensors... 

 

Page 2 of 2 [ 24 posts ] Go to page Previous  1, 2

 
Posted: Sun Feb 13, 2005 10:37 am 
Getting Side Ways
Offline

Age: 35

Posts: 533

Joined: 12th Jan 2005

Location: Melbourne
VIC, Australia

EDXR8 wrote:
The IAT is used as a guide to air density for load calculation and modifying the signal will throw out load but that is already occuring because of the cam. IAT is also used to trigger more timing advance when air intake is cooler (ie denser), this is how you may benefit from changing the output. When it comes down to it though, the potential for damage and engine running problems far outweigh the possible small benefits of modifying sensor readings IMO.


Plus the fact that by tricking the ECU to give you moer advance, if it gives you too much advance, teh knock sesnor will just retard the spark.

And contraty to popular belief, teh best spark advance is not where the engine is about a bees d**k away from pinging.
Top
 Profile  
 
 
Posted: Mon Feb 14, 2005 2:32 pm 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 516

Joined: 20th Dec 2004

Gallery: 4 images

Ride: EL Manual

Location: S.E. Melbourne
VIC, Australia

I think he is modifying the engine temp sensor.

Also I have been working on a device to modify frequency signals, both in frequency and duty cycle + many more features. I will post here soon after I have worked on it a bit more.

 

_________________

Manual EL Gli.
Mods: Crow Stg3, Chiptorque Dynotune. Lukey Exhaust. DBA slotted rotors, EBC Pads. Whiteline Low Susp. EL GT Swaybars, ROH Envy 17 x235 wheels. Vehicle Datalogger Display V2.0,

Top
 Profile  
 
 
Posted: Mon Feb 14, 2005 3:02 pm 
Stock as a Rock
Offline

Posts: 156

Joined: 10th Nov 2004

Ride: EL Fairmont

Location: Mornington Peninsula
VIC, Australia

Hmmmm my EL seems to go better when it has reached normal temp?

be it morning, night, hot, cold etc :?

when its cold (the engine not the air temp) the car just seems lethargic. :?:

 

_________________

Regency Red EL Fairmont - PH4480 - 2.5" exhaust - High flow cat/muffler - K&N panel filter - Mandrel bent air intake - T series intake - wade 1604 cam - 98 EL XR6 ECU - Whiteline lows - 17" ROH RT's - Koni yellows - DBA Slotted's - Green Stuff pads
NEED: LSD, chiptorque

Top
 Profile  
 
 
Posted: Mon Feb 14, 2005 3:05 pm 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 1518

Joined: 6th Nov 2004

Gallery: 14 images

Ride: BA XR6 Turbo

Power: 175 rwkw

Location: The Shire, Sydney
NSW, Australia

Mako wrote:
when its cold (the engine not the air temp) the car just seems lethargic. :?:

Mine is like that but when hot, very noticably.

Dyno time in 2 hours, but after just taking the car out at lunch I'm fearing what sort of a reading I'm going to get after an hour drive in traffic :|

 

_________________

ImageImage

Top
 Profile  
 
 
Posted: Mon Feb 14, 2005 3:08 pm 
Getting Side Ways
Offline
User avatar

Age: 36

Posts: 8655

Joined: 5th Nov 2004

Gallery: 37 images

Ride: V8 EF Futura

Location: Adelaide CBD
SA, Australia

Hyena wrote:
Mako wrote:
when its cold (the engine not the air temp) the car just seems lethargic. :?:

Mine is like that but when hot, very noticably.

Dyno time in 2 hours, but after just taking the car out at lunch I'm fearing what sort of a reading I'm going to get after an hour drive in traffic :|


Probably better to get a realistic view of A/Fs and performance after some "real world" driving.... kw readings may suffer but better than getting a 'picture' of your engine's performance when cold.... as most of your driving will not be under these conditions.

Let us know how you go, post a pic of the graph if possible.... I think we're all pretty keen to see how your machine goes!!!

 

_________________

I promise..... I will never die.

Fordmods Administration Group MINOR PUNKED

Top
 Profile  
 
 
 Post subject: Re: Tricking sensors...
Posted: Mon Feb 14, 2005 4:17 pm 
Stock as a Rock
Offline

Posts: 156

Joined: 10th Nov 2004

Ride: EL Fairmont

Location: Mornington Peninsula
VIC, Australia

Hyena wrote:
As per the megasquirt thread, I'm looking at getting one of those but I'm also keen if trying to trick other sensors in the car for the time being.
The jaycar kit fuel adjuster kit apparently doesn't work with the I6s because of MAP sensors rather than MAFs (and analog/digital) which is unfortunate because they sound really cool for the money :x
Thoughts ?


oh and the jaycar site says it will work with map sensors???

It can be used on 0-5V and 0-12V signals, so it is compatible with all voltage output airflow meters and MAP sensors

edit oh ahhh is it the "voltage output" that kills us :?

 

_________________

Regency Red EL Fairmont - PH4480 - 2.5" exhaust - High flow cat/muffler - K&N panel filter - Mandrel bent air intake - T series intake - wade 1604 cam - 98 EL XR6 ECU - Whiteline lows - 17" ROH RT's - Koni yellows - DBA Slotted's - Green Stuff pads
NEED: LSD, chiptorque

Top
 Profile  
 
 
Posted: Mon Feb 14, 2005 8:54 pm 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 1518

Joined: 6th Nov 2004

Gallery: 14 images

Ride: BA XR6 Turbo

Power: 175 rwkw

Location: The Shire, Sydney
NSW, Australia

4.9 EF Futura wrote:
Let us know how you go, post a pic of the graph if possible.... I think we're all pretty keen to see how your machine goes!!!
No one is keener than I :)
Unfortunately I didn't get to dyno it this arvo so it looks like I'll have a time slip before a dyno chart. I'm heading out to WSID on wednesday night so I'll post up my time slips thursday morning.
edit: dyno is late wednesday arvo now back to back with WSID!

I know what you mean about real world readings, but the heat soak from driving around in start stop traffic on a hot day makes it run worse than otherwise. I'd like a decent peak figure on paper, but at the end of the day its the time slip that counts. That said, performance will be affected just the same, altho I should get a cooler run in later in the night.

 

_________________

ImageImage

Top
 Profile  
 
 
Posted: Thu Feb 17, 2005 10:04 am 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 1518

Joined: 6th Nov 2004

Gallery: 14 images

Ride: BA XR6 Turbo

Power: 175 rwkw

Location: The Shire, Sydney
NSW, Australia

They wouldn't let me race at WSID as per my comments in the events thead as the place packed out in an hour :cry:
I did get the dynoing done though (which is why I was late) but that revealed good and bad results.

Assuming that the ECU switches to these lean/rich maps pretty quickly, the device I made didn't have any effect. I did a runs straight, and then one with it "overheating" and theortically lean and and change the curve or the air/fuel ratio enough to notice no paper.

I have other dyno dramas to sort out now, but that's for another thread!

 

_________________

ImageImage

Top
 Profile  
 
 
Posted: Thu Feb 24, 2005 6:58 am 
Smokin em up
Offline
User avatar

Age: 36

Posts: 258

Joined: 7th Nov 2004

Gallery: 6 images

Ride: '98 EL XR8

Location: Katherine
NT, Australia

I think most people have thought about tricking the sensors, but Im assuming FORD put in multiple sensors to maintain optimum performance. Remember, it was built to adhere to strict exhaust gas emmision regulations as well as produce power.

You run the car rich from the COOLANT sensor, the O2 signal is gonna report running rich and adjust... adjust the ACT signal, is going to have the same effect...

The only one I think would work a little is the O2 sensor.. mine was kinda shot, so it thought it was running lean - which made her run rich. But the ECU knew the sensor was not operating corrctly and may have compensated for it, wether it does this for all the sensors and how it adjusts to compensate I dont know...

You gotta remember, most of these sensors basically adjust the ECUs Pulse Width of the injectors... is that all your trying to do?? Pull off the hose to the MAP then clog it... run it as rich as you want then... lol :lol:

Look at this quote from a Gregorys:
"Adaptive strategy is employed on the EEC-IV system. This feature adapts the system to changing conditions due to engine wear ect and may compensate for certain malfunctions within the system. The operator of the vehicle may not be aware of any problems as the vehicle operation may not be affected to a disceernible degree."

An engines power comes from 2 basic things... Air + Fuel = Power

The only thing that I think will work with these engines are physical mechanical differences... flow more dense cold air, inject more fuel. The ECU fine tunes it... wether it be stock or aftermarket.

 

_________________

"...we can rebuild him, we have the technology... we just dont want to spend a lot of money."
SIX MILLION PESO FALCON

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 2 of 2  [ 24 posts ]  Go to page Previous  1, 2

Who is online

Users browsing this forum: Facebook [Bot] and 15 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Mon Dec 11, 2017 3:26 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names