Air Fuel Wideband bung - 2003-04 Mach 1 Registry Owners Club

deancollins · 05-12-2017, 08:48 AM

Hi,

I purchased the Aeroforce air fuel wideband sensor for my gauges.

Quick question, is it possible to use the rear O2 sensor port? Or is it advised to install the bung that came with the kit?

And if so, which side should I have it install on?

Thanks!

NastyNate · 05-12-2017, 05:35 PM

Its advised to weld in a new bung. BUT you can use the rear ...it'll read different though. I forget how much.

deancollins · 05-17-2017, 04:37 AM

OK cool, I will get bung welded in. Thanks.

01yellerCobra · 05-17-2017, 01:10 PM

It depends on if you have cats or not. I think with my O/R pipe I saw about a .2 difference between the rear sensor bungs and the one up front. With cats it was closer to .5 or .6. Either way I'd get the bung welded into the proper spot.

Sent from my SAMSUNG-SM-G935A using Tapatalk

2k4mach · 05-17-2017, 09:12 PM

you can, but id weld a new bung in. i usually saw a .3-.4 difference between the rear port and the bung i had welded in.

311-420 · 05-18-2017, 12:42 AM

And shouldn't the sensor go into the exhaust that is on the side of the engine that gets the fuel first (the passenger side)?

DSG2003Mach1 · 05-18-2017, 08:28 AM

my tuner told me the driver side (my guess is youd rather see the side thats slightly more likely to be lean where something might get hurt vs the other side being a tad rich)

TKat13 · 05-18-2017, 01:03 PM

I have mine on the driver's side as well. Technically, you should have one on both sides and if you were really needing to get even more accuracy then you would have one on each cylinder on the header but that's another conversation.

TKat13 · 05-18-2017, 01:07 PM

Quote:

Originally Posted by 311-420

And shouldn't the sensor go into the exhaust that is on the side of the engine that gets the fuel first (the passenger side)?

With a properly pressurized system, the injectors are controlling the fuel into the motor so it would not matter what side they fuel comes in first; the only thing I could imagine that would have an affect is temp differences in the fuel from the first injector to the last in line with the last having a chance to be warmer, but I cannot imagine that being an issue on our power levels. So, the question then is, would you rather monitor the hot or cold side.

These are the strange conversations I have in my head. lol

deancollins · 06-27-2017, 04:26 AM

Some interesting information here!

Think I will follow suit on the drivers side.

I need to get someone to do this for me, so is it a case of taking the car somewhere and getting it in the air? And welding the bung in with exhaust still on the car or dropped slightly?

Or just remove the section of the exhaust I want someone to work on and take it to them!?

Thanks!

DSG2003Mach1 · 06-27-2017, 08:08 AM

You want to install it with exhaust on the car in normal position to be sure it'll clear. It needs to be installed between 9 and 3 going clockwise otherwise you risk getting moisture in the sensor which can kill them. Replacing them can really add up

deancollins · 06-27-2017, 09:27 AM

oh OK!

I thought I would have to drop it due to the amount of heat welding would cause.

The the sensor will be pointing in a downward direction?

Any pics of where to put it?

Thanks!

deancollins · 07-18-2017, 04:52 AM

Got it all wired up and installed!

What type of readings should I expect to see?

Thanks.

DSG2003Mach1 · 07-18-2017, 08:17 AM

I believe 14.7 is stoich so at idle Id expect to see it floating around there (mid 14s to low 15s or so). WOT I would want to see mid to high 11s personally.

05-12-2017, 08:48 AM	#1
deancollins Registered User Join Date: Apr 2012 Location: London, England Posts: 166	Air Fuel Wideband bung Hi, I purchased the Aeroforce air fuel wideband sensor for my gauges. Quick question, is it possible to use the rear O2 sensor port? Or is it advised to install the bung that came with the kit? And if so, which side should I have it install on? Thanks! __________________ http://www.eurostang.com - American Muscle on Europes Roads

05-12-2017, 05:35 PM	#2
NastyNate Registered User Join Date: Mar 2008 Location: Jersey Shore Posts: 1,349	Re: Air Fuel Wideband bung Its advised to weld in a new bung. BUT you can use the rear ...it'll read different though. I forget how much.

05-17-2017, 04:37 AM	#3
deancollins Registered User Join Date: Apr 2012 Location: London, England Posts: 166	Re: Air Fuel Wideband bung OK cool, I will get bung welded in. Thanks. __________________ http://www.eurostang.com - American Muscle on Europes Roads

05-17-2017, 01:10 PM	#4
01yellerCobra Registered User Join Date: Jan 2013 Location: San Diego, CA Posts: 1,104	It depends on if you have cats or not. I think with my O/R pipe I saw about a .2 difference between the rear sensor bungs and the one up front. With cats it was closer to .5 or .6. Either way I'd get the bung welded into the proper spot. Sent from my SAMSUNG-SM-G935A using Tapatalk __________________ New Ride: 2004 Mystichrome Cobra-Accufab SBTB and plenum, Steeda 2.8" upper, Bassani X, Borla Stingers, Mcleod RXT, MGW shifter, Level 5 halfshafts, chrome FR500's, Stiffler's FIT system and DS safety loop, GT pumps, BA3000, tuned by owner

05-17-2017, 09:12 PM	#5
2k4mach LuLz Join Date: Dec 2003 Location: Cedar Park, TX Posts: 19,294	Re: Air Fuel Wideband bung you can, but id weld a new bung in. i usually saw a .3-.4 difference between the rear port and the bung i had welded in. __________________ 11 Sterling gray GT500 coupe 08 Silver Z06 1058rwhp/1073rwt @ 15psi 14 Silver Q50S Vortech blown 04 DSG Mach 1 (stolen) 03 OW Mach 1 (sitting in a field rotting away)

05-18-2017, 12:42 AM	#6
311-420 Can't be bridled Join Date: Sep 2007 Location: Texas Posts: 7,006	Re: Air Fuel Wideband bung And shouldn't the sensor go into the exhaust that is on the side of the engine that gets the fuel first (the passenger side)? __________________ 2004 Mach 1 #6956 5spd w/IUP Eaton swap, longtubes, built 3.73 SRA 452hp/409tq dynojet🏁

05-18-2017, 08:28 AM	#7
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	Re: Air Fuel Wideband bung my tuner told me the driver side (my guess is youd rather see the side thats slightly more likely to be lean where something might get hurt vs the other side being a tad rich) __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater

05-18-2017, 01:03 PM	#8
TKat13 Mach-T Join Date: Jun 2004 Location: DFW Posts: 2,865	Re: Air Fuel Wideband bung I have mine on the driver's side as well. Technically, you should have one on both sides and if you were really needing to get even more accuracy then you would have one on each cylinder on the header but that's another conversation. __________________ Darrell Black '04 Mach 1 Track Times (bone-stock w/drs):60 ft - 1.90 \| 1/8 - 8.67 (100 shot,E85,4:10s,Street tire):60 ft - 1.67 \| 1/8 - 7.88 New build - 750rwhp; not track tested (yet) Mods: Build Log Paint&Body Tuned by Manny @ HPP

06-27-2017, 04:26 AM	#10
deancollins Registered User Join Date: Apr 2012 Location: London, England Posts: 166	Re: Air Fuel Wideband bung Some interesting information here! Think I will follow suit on the drivers side. I need to get someone to do this for me, so is it a case of taking the car somewhere and getting it in the air? And welding the bung in with exhaust still on the car or dropped slightly? Or just remove the section of the exhaust I want someone to work on and take it to them!? Thanks! __________________ http://www.eurostang.com - American Muscle on Europes Roads

06-27-2017, 08:08 AM	#11
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	Re: Air Fuel Wideband bung You want to install it with exhaust on the car in normal position to be sure it'll clear. It needs to be installed between 9 and 3 going clockwise otherwise you risk getting moisture in the sensor which can kill them. Replacing them can really add up __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater

06-27-2017, 09:27 AM	#12
deancollins Registered User Join Date: Apr 2012 Location: London, England Posts: 166	Re: Air Fuel Wideband bung oh OK! I thought I would have to drop it due to the amount of heat welding would cause. The the sensor will be pointing in a downward direction? Any pics of where to put it? Thanks! __________________ http://www.eurostang.com - American Muscle on Europes Roads

07-18-2017, 04:52 AM	#13
deancollins Registered User Join Date: Apr 2012 Location: London, England Posts: 166	Re: Air Fuel Wideband bung Got it all wired up and installed! What type of readings should I expect to see? Thanks. __________________ http://www.eurostang.com - American Muscle on Europes Roads

07-18-2017, 08:17 AM	#14
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	Re: Air Fuel Wideband bung I believe 14.7 is stoich so at idle Id expect to see it floating around there (mid 14s to low 15s or so). WOT I would want to see mid to high 11s personally. __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater

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