Wideband owners... afr question? - Page 2

**defiler** · 5-7-08, 16:39

Quote:

Duh! LOL, cruising at 85mph uses quite a bit of power = quite a bit of load = needs 12.5AFR :-)

What kpa are you at at 85mph?? ie, how far in boost or vacuum?

Whats the bet its like 2psi or 0psi or something similar? Pretty good i'd say

The vaccuum at 85 under cruise is about 5-8 in/hg...

Quote:

My wideband is always running in my car.

Mine is always on... just because I have the gauge blasting the AFR's in bright blue at me

**TR-mx6** · 5-7-08, 20:44

Your idle is stable defiler? Cruising at 85mph you should be at about 10in/hg. I remember quite well that even cruising at 100mph id dip to a maximum of 8in/hg. Possible small vaccum/boost leak.

**Zach** · 5-7-08, 21:30

Quote:

Originally Posted by TR-mx6

Your idle is stable defiler? Cruising at 85mph you should be at about 10in/hg. I remember quite well that even cruising at 100mph id dip to a maximum of 8in/hg. Possible small vaccum/boost leak.

^^^^
This!

Cruising at 10mph or 100mph, maintaining your speed, ie; cruising, you should be showing 10" of Mercury.

**defiler** · 5-7-08, 22:47

I was just going off the top of my head. I checked again while driving today and it was actually around 10in/hg. But yes, my idle is pretty stable.

I should have hooked up the dimmer on the gauge. This is what I get to see driving at night now:

**fredio54** · 5-8-08, 2:08

pick_arse (nicely spelled btw), when is the last time you free air calibrated it? They are a maintenance item, and have a limited life span...

At the least you need to recalibrate it regularly, particularly if you are running rich in boost which all f2t's do hard out...

**ademan** · 5-8-08, 16:40

Quote:

Originally Posted by fredio54

pick_arse (nicely spelled btw), when is the last time you free air calibrated it? They are a maintenance item, and have a limited life span...

At the least you need to recalibrate it regularly, particularly if you are running rich in boost which all f2t's do hard out...

yep you are correct, the innovate wideband need calibrtion, too much calibration thats is not require by other wideband, i do remember while i was tunning my car, as soon as the airfuel ratio went below 9-1 a/r the wideband went crazy, i have to pull over, shut the engine up, disconnect the sensor and re do the recalibration process.

**fredio54** · 5-8-08, 16:52

That's because they sample the sensor differently meaning that when calibrated it is 0.5 more accurate than most other controllers. Sensor wear and tear is real. All wbo2 units need recalibration, this is the first I've heard of it being worse with Innovate.

Fred.

**defiler** · 5-8-08, 22:20

Odd that it would go crazy after 9:1, since the sensor is designed to read as low as 7:1

**fredio54** · 5-9-08, 2:07

Not odd at all :-) rich miss fire = reads lean, but not all cylinders miss fire every time so you get rich, lean, rich, lean etc. common issue.

Fred.

**cuJe5ter** · 5-9-08, 10:45

Quote:

Originally Posted by lundgren420

I guess it only counts if it is hooked up and in use.

+1 lol.

once i go MS i'll toss the wideband on. as long as i'm on the stock ecu i'm not too worried.

**RbluEMx6** · 5-13-08, 3:13

Quote:

Originally Posted by fredio54

That's because they sample the sensor differently meaning that when calibrated it is 0.5 more accurate than most other controllers. Sensor wear and tear is real.

Since were on the subject of calibration, I notice with my innovate LC1 that when I'm cruising it will read a steady afr of 13 or so, but then I'll see it skip straight to 18-20 and back to 13. Not too sure whats going on there.

On a few occasions it has gotten stuck on reading 15+- afrs under all kinds of throttle positions.

I have tried recalibrating according to the manual but it does not seem to help. Could ignition components interfere with sending the proper signal to the gauge. I have looked on the innovate forum but most people there get the error signals and I haven't gotten any error signals yet.

compnut21 · 5-13-08, 3:16

depending on your gauge, it may be reading too quickly. try telling it to average the results. (also check your firmware while in there.)

**RbluEMx6** · 5-13-08, 3:24

I am using the blue DB gauge. Plus I haven't really checked it against the logworks.

**fredio54** · 5-13-08, 9:02

thats a mis fire i bet you! 13 is pretty rich, how are the leads/plugs/cap/rotor/etc and what are you using for engine management? whats dwell set at? can you data log? it could be dropping sync and removing fuel for an instant or something. Can you feel these as kicks or bucks? even slightly?

**fredio54** · 5-13-08, 9:03

Doh, missed the sig ;-) the rest of it still stands though :-)

5-7-08, 20:44	#17 (permalink)
TR-mx6 Rock n' Roll \m/ Join Date: May 2005 Location: , Canada Age: 23 iTrader: (0)	Your idle is stable defiler? Cruising at 85mph you should be at about 10in/hg. I remember quite well that even cruising at 100mph id dip to a maximum of 8in/hg. Possible small vaccum/boost leak.
	Keepin' it Heavy www.myspace.com/trrock Check us out!

5-7-08, 22:47	#19 (permalink)
defiler All lies lead to a truth. Join Date: Aug 2006 Location: Coon Rapids, MN, USA Age: 24 iTrader: (8)	I was just going off the top of my head. I checked again while driving today and it was actually around 10in/hg. But yes, my idle is pretty stable. I should have hooked up the dimmer on the gauge. This is what I get to see driving at night now:
	-Sometimes you have to lie to find out what the truth is.... 89MX6 GT 4WS

5-8-08, 2:08	#20 (permalink)
fredio54 Join Date: Aug 2004 Location: Auckland, New Zealand iTrader: (1)	pick_arse (nicely spelled btw), when is the last time you free air calibrated it? They are a maintenance item, and have a limited life span... At the least you need to recalibrate it regularly, particularly if you are running rich in boost which all f2t's do hard out...
	DIYEFI.org - TRUE DIY engine management Mazda FE3/FE-DOHC Master Index Thread (work in progress) Mazda truck with FE-DOHC/FE3 "BIG like your house" Holset Turbo drinking 2.2 litres of fuel per minute ~= 385hp crank RIP SleepCounter :-( we will miss you! - RIP fredio54 :-( will we miss you?

5-8-08, 16:52	#22 (permalink)
fredio54 Join Date: Aug 2004 Location: Auckland, New Zealand iTrader: (1)	That's because they sample the sensor differently meaning that when calibrated it is 0.5 more accurate than most other controllers. Sensor wear and tear is real. All wbo2 units need recalibration, this is the first I've heard of it being worse with Innovate. Fred.
	DIYEFI.org - TRUE DIY engine management Mazda FE3/FE-DOHC Master Index Thread (work in progress) Mazda truck with FE-DOHC/FE3 "BIG like your house" Holset Turbo drinking 2.2 litres of fuel per minute ~= 385hp crank RIP SleepCounter :-( we will miss you! - RIP fredio54 :-( will we miss you?

5-8-08, 22:20	#23 (permalink)
defiler All lies lead to a truth. Join Date: Aug 2006 Location: Coon Rapids, MN, USA Age: 24 iTrader: (8)	Odd that it would go crazy after 9:1, since the sensor is designed to read as low as 7:1
	-Sometimes you have to lie to find out what the truth is.... 89MX6 GT 4WS

5-9-08, 2:07	#24 (permalink)
fredio54 Join Date: Aug 2004 Location: Auckland, New Zealand iTrader: (1)	Not odd at all :-) rich miss fire = reads lean, but not all cylinders miss fire every time so you get rich, lean, rich, lean etc. common issue. Fred.
	DIYEFI.org - TRUE DIY engine management Mazda FE3/FE-DOHC Master Index Thread (work in progress) Mazda truck with FE-DOHC/FE3 "BIG like your house" Holset Turbo drinking 2.2 litres of fuel per minute ~= 385hp crank RIP SleepCounter :-( we will miss you! - RIP fredio54 :-( will we miss you?

5-13-08, 3:16	#27 (permalink)
compnut21 Bear on the internet. Join Date: Oct 2007 Location: Olympia, WA iTrader: (5)	depending on your gauge, it may be reading too quickly. try telling it to average the results. (also check your firmware while in there.)
	89 GT 4WS/Megasquirt/No Engine/∞ mpg My FE3T Project

5-13-08, 3:24	#28 (permalink)
RbluEMx6 Join Date: Sep 2003 Location: San Antonio, TX, USA Age: 23 iTrader: (0)	I am using the blue DB gauge. Plus I haven't really checked it against the logworks.
	-Rick- 88 MX6 GT Celeste <--Cardomain Page Updated 7-8-08 Boosted on an Electromotive TECII standalone. FE-DOHC rebuild 265hp, 290ft/tq @ 15psi '08 FORD Ranger Sport

5-13-08, 9:02	#29 (permalink)
fredio54 Join Date: Aug 2004 Location: Auckland, New Zealand iTrader: (1)	thats a mis fire i bet you! 13 is pretty rich, how are the leads/plugs/cap/rotor/etc and what are you using for engine management? whats dwell set at? can you data log? it could be dropping sync and removing fuel for an instant or something. Can you feel these as kicks or bucks? even slightly?
	DIYEFI.org - TRUE DIY engine management Mazda FE3/FE-DOHC Master Index Thread (work in progress) Mazda truck with FE-DOHC/FE3 "BIG like your house" Holset Turbo drinking 2.2 litres of fuel per minute ~= 385hp crank RIP SleepCounter :-( we will miss you! - RIP fredio54 :-( will we miss you?

5-13-08, 9:03	#30 (permalink)
fredio54 Join Date: Aug 2004 Location: Auckland, New Zealand iTrader: (1)	Doh, missed the sig ;-) the rest of it still stands though :-)
	DIYEFI.org - TRUE DIY engine management Mazda FE3/FE-DOHC Master Index Thread (work in progress) Mazda truck with FE-DOHC/FE3 "BIG like your house" Holset Turbo drinking 2.2 litres of fuel per minute ~= 385hp crank RIP SleepCounter :-( we will miss you! - RIP fredio54 :-( will we miss you?