Innovative o2 with maf ?
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Innovative o2 with maf ?
I'm getting ready to swap over to MAF on my 89 F250 5.8. So far I have found all my intake parts but might have to pony up and get a new A9L and injector overlay. Anywho, I have just ordered an Innovative wideband O2 with LC-1 and am wondering about placement of that O2. Right now my single o2 is located in my Y pipe seeing both sides. Should I stick the new Innovative sensor there and weld in two new bungs in my header collectors for both banks for the MAF setup?
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From: The blues
Unless your planning on doing any tuning yourself, getting the WB O2 is kinda pointless.
Anyways, when people switch over to MAF yes the proper way is to add another O2 sensor, one for each bank. However, plenty of people have made it work by simply splitting the O2 signal wire from the truck in 2 and connecting it up to both of the MAF EECs O2 inputs.
The LC-1 should have two outputs on it. On mine the programming comes stock for one output to give the WB signal to AFR gauge or datalogging device (whichever you have), and the other output simulates a narrowband sensor to keep the EEC happy. You can use that narrowband output the same way as you would on a stock set-up, just split it in 2 and feed both O2 ports on the A9L.
Anyways, when people switch over to MAF yes the proper way is to add another O2 sensor, one for each bank. However, plenty of people have made it work by simply splitting the O2 signal wire from the truck in 2 and connecting it up to both of the MAF EECs O2 inputs.
The LC-1 should have two outputs on it. On mine the programming comes stock for one output to give the WB signal to AFR gauge or datalogging device (whichever you have), and the other output simulates a narrowband sensor to keep the EEC happy. You can use that narrowband output the same way as you would on a stock set-up, just split it in 2 and feed both O2 ports on the A9L.
Der Postmeister
Joined: Sep 2006
Posts: 6,859
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From: Long Beach, Calimexiforia
Unless your planning on doing any tuning yourself, getting the WB O2 is kinda pointless.
Anyways, when people switch over to MAF yes the proper way is to add another O2 sensor, one for each bank. However, plenty of people have made it work by simply splitting the O2 signal wire from the truck in 2 and connecting it up to both of the MAF EECs O2 inputs.
The LC-1 should have two outputs on it. On mine the programming comes stock for one output to give the WB signal to AFR gauge or datalogging device (whichever you have), and the other output simulates a narrowband sensor to keep the EEC happy. You can use that narrowband output the same way as you would on a stock set-up, just split it in 2 and feed both O2 ports on the A9L.
Anyways, when people switch over to MAF yes the proper way is to add another O2 sensor, one for each bank. However, plenty of people have made it work by simply splitting the O2 signal wire from the truck in 2 and connecting it up to both of the MAF EECs O2 inputs.
The LC-1 should have two outputs on it. On mine the programming comes stock for one output to give the WB signal to AFR gauge or datalogging device (whichever you have), and the other output simulates a narrowband sensor to keep the EEC happy. You can use that narrowband output the same way as you would on a stock set-up, just split it in 2 and feed both O2 ports on the A9L.
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Joined: Jun 2006
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From: Ottawa, Ontario
I gonna suggest you install seperate O2 sensors for the EFI system regardless what you do for the wideband, these things(Wideband) require fairly regular recalibrations that will become a pain in the *** if this is a daily driver.
Der Postmeister
Joined: Sep 2006
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From: Long Beach, Calimexiforia
Is that because he won't get the full effect of SEFI by mirroring the single o2 signal rather than having separate left/right exhaust bank readings?
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Joined: Jun 2006
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From: Ottawa, Ontario
No. When the wideband needs recalibration it goes completely out of whack so if you're using it as the main input to the EFI system obviously the motor won't run as it should. To recalibrate the LC-1 the whole sensor has to be exposed to atmosphere which means you have to pull it out of the exhaust system.. that's the pain in the *** part I talked about.
Using a single O2 to feed both inputs of an SEFI MAF system is no problem at all, matter of fact this is exactly how the Ford MAF conversion kits are setup. I have tested my truck with both single and dual O2 sensors using the TweecerRT for EEC datalogging and the LC-1 to monitor A/F ratios and there is no difference in the way the engine runs. There are tiny instantaneous differences between the banks with dual sensors but overall this doesn't amount to any measurable performance difference and both banks closely parallel each other in terms of injector duty cycle and O2 cycles so IMO it's a waste of time to install dual O2, the system will run just fine with a single sensor in the passenger header collector.
Using a single O2 to feed both inputs of an SEFI MAF system is no problem at all, matter of fact this is exactly how the Ford MAF conversion kits are setup. I have tested my truck with both single and dual O2 sensors using the TweecerRT for EEC datalogging and the LC-1 to monitor A/F ratios and there is no difference in the way the engine runs. There are tiny instantaneous differences between the banks with dual sensors but overall this doesn't amount to any measurable performance difference and both banks closely parallel each other in terms of injector duty cycle and O2 cycles so IMO it's a waste of time to install dual O2, the system will run just fine with a single sensor in the passenger header collector.
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Yes I do plan on messing with the tuning myself. Plans are to convert the 351W to MAF and learn as much as possible. Once I am confident with the programing I plan to pull the windsor in favor of a carbed 466 that I have in the garage. Only it won't be carbed when I put it in the truck. That's where the MAF will come into play.
So what I gather is I need to isolate the Innovative O2 from the MAF O2's. Put the innovatives sensor in my Y pipe so it can see both banks and put atleast 1 O2 in the pass side collector. One question I have is if I run 2 O2's for the MAF then when one messes up it will still run, right? It seams if I have both sides piggybacked to one sensor, when that sensor fails I'd be up a creek. I already have to drop the exhaust to weld a bung so it wouldn't bother me to do another and just put a plug in one till I do the conversion
So what I gather is I need to isolate the Innovative O2 from the MAF O2's. Put the innovatives sensor in my Y pipe so it can see both banks and put atleast 1 O2 in the pass side collector. One question I have is if I run 2 O2's for the MAF then when one messes up it will still run, right? It seams if I have both sides piggybacked to one sensor, when that sensor fails I'd be up a creek. I already have to drop the exhaust to weld a bung so it wouldn't bother me to do another and just put a plug in one till I do the conversion
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From: The blues
Right on then, What do you plan on tuning with? I went with a completely new engine management system with MegaSquirt. If you plan on running a gauge And your tuning hardware has a slot for a WBO2 signal (for datalogging or EGO correction) then you'll need to reprogram the second output to give a wideband signal. It's easy and the LC-1 should've came with everything you need.
I'm not sure what happens on a dual O2 set-up when one goes out, IF they were smart they should've just programmed the EEC to throw an error code and run off the good one until the faulty sensor is replaced. If you loose the signal to all O2 readings then your EEC will just stay in Open loop and won't attempt to correct the AFR (cause it has no idea what it is). You'll run a bit rich but it'll still run.
I'm not sure what happens on a dual O2 set-up when one goes out, IF they were smart they should've just programmed the EEC to throw an error code and run off the good one until the faulty sensor is replaced. If you loose the signal to all O2 readings then your EEC will just stay in Open loop and won't attempt to correct the AFR (cause it has no idea what it is). You'll run a bit rich but it'll still run.
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I am not fully decided up to this point as to which tuner I will run. How do you like the megasquirt? Read a little of it on 460 ford. Seems like a good option. I was thinking of going with moates.
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From: San Tan Valley, AZ
Just FYI- this is what the Quarterhorse comes with, everything that came in the box.
I couldn't find a picture of what it looked like out of the box, and not installed yet. Pretty much everything you need- minus the WBO2, and a software program to program it with.
I couldn't find a picture of what it looked like out of the box, and not installed yet. Pretty much everything you need- minus the WBO2, and a software program to program it with.
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I am assuming, actually more hoping, that this is different from doing a conversion where you swap the computer and wiring harness. im plannin on using a MAF sensor matched to #24 injectors and harness and computer out of 94 e4od f150. my prior understanding was that i can do i direct replacement but now yall are making me nervous and think twice about all this
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