Yes but you see my driveability is perfect, I have no problems.Installing O2 sensors on a Custom chip tune servs no purpose. They are non-functional at that point.
As perfect as it may seem to be…in all actuality it is far from it. Without your computer being able to make corrections based on your 02 readings, your drivability will suffer. A custom tune does not eliminate the need for 02 sensors. Your computer still needs closed loop mode to make corrections based on 02 readings.
OK its Party time., My car was tuned by Alternative Auto, You being from Michigan May very well know Lidio and his tuning capabilities. Before I took my car there with no tune and O2 sensors it ran like crapp, choppy idle and all unstable. After Lidio's tune with an SCT chip and no O2 sensors everything is perfect. So once again, O2s on a custom SCT tune does nothing. The chip is programmed to tell the compter what to do at this point the O2 sensors have been disabled.
OK its Party time., My car was tuned by Alternative Auto, You being from Michigan May very well know Lidio and his tuning capabilities. Before I took my car there with no tune and O2 sensors it ran like crapp, choppy idle and all unstable. After Lidio's tune with an SCT chip and no O2 sensors everything is perfect. So once again, O2s on a custom SCT tune does nothing. The chip is programmed to tell the compter what to do at this point the O2 sensors have been disabled.
My opinion, your tuner is a hack, and he ripped you off. Here is why I feel this way...
Without the O2's you have lost the Adaptive Strategy. The Adaptive Strategy is what compensates for sensor variation. For example, 2 brand new ECT sensors may be slightly different. OR similarly, a sensors output will vary as it ages.
Both of these types of differences will introduce error into your 'now perfect' custom tune.
What happens when your ACT gets fouled up?
What happens when your MAF gets fouled up?
What happens as you ACT/ECT age?
All of these things will cause small variations in your tune.
Normally, the Adaptive Strategy will correct for that.
However, you will just see your custom tune start to degrade.
You may even see a difference in the tune with weather changes... Others have reported this...
Most often Open Loop tuning is easier for a tuner to figure out and get right. Look at it from the perspective of the shop performing the tune...
The more tunes he can do in a given day, the more money he makes...
If he can cut an 30 minutes off your tune time, then maybe he can squeeze in one more tune per day.
The bottom line is...
Creating a custom tune which does not utilize Adaptive is a short cut.
I seriously doubt that installing O2's will do any good for you now. Unless the tuner took another MAJOR shortcut, you will need to get the car re-tuned in order to get the car into CL.
My advise is to go back to the tuner, and ask him to do the job right.
Actually, no... I would just find another tuner...
But that is just my opinion,
jason
VRISTANG you must not know Lidio either. HE is simpy the BEST Tuner in the Eastern side of the US, I would put him up against anyone in the world Actually. People travel hundreds if not thousands of miles to get their car tuned at Alternative, I was just lucky enough to live right by himThanks for your input though.
If he really is that good then it only makes it worse that he took this short cut on YOUR car.
If he is that good, then you should feel slightly insulted right now
What kind of tuning does he 'normally' do? carbs? chevy? other?
From the reports I have gathered from others, most often this shortcut is done by guys that don't have much experience with the Ford EEC-IV.
I wish you luck with the tune,
If you hook up O2's, please let us know how it works out...
jason
Maybe you guys should check out his shop before jumping in with your theories:
www.alternativeauto.com
He does this type of tune on all cars.
He has been a Ford technician for 15 years as a drivability tech
He only works on EFI Ford EEC-IV and anything else Ford can throw his way
You should see what power he has put out on GT 500 Shelbys with simple tuning
The guy is a mastermind calibrator.
:SNSign:
Maybe he means he has no rear O2 sensors but still has the 1st ones
There are only two O2 sensors on a Mustang, no front and rear.
So basically bottom line is that if I put in new o2 sensors i should deffinately see an improvement right?
Maybe you guys should check out his shop before jumping in with your theories:
www.alternativeauto.com
He does this type of tune on all cars.
He has been a Ford technician for 15 years as a drivability tech
He only works on EFI Ford EEC-IV and anything else Ford can throw his way
You should see what power he has put out on GT 500 Shelbys with simple tuning
The guy is a mastermind calibrator.
:SNSign:
There are only two O2 sensors on a Mustang, no front and rear.
ok, im pretty sure the tuning was just basically just timing and fuel pressure because I didnt have a chip burned. So I think that it was basically tuned as is.
You need O2 sensors for the computer to adjust air/fuel ratio. The O2 sensor provides feedback to the computer letting it know if you are running rich or lean. Without O2 sensors, the computer doesn't have any feedback.
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?