Mazda MX-6 - 22RE AFM Swap :D
#1
Registered User
Thread Starter
Mazda MX-6 - 22RE AFM Swap :D
I just put a 1989 Mazda MX6 2.2L AFM into my 90 22RE. Its the same size as a.... 1982 Supra .
Sadly, it doesn't have the 3" inlet for a cone filter, but it still does the job. Its a direct plug and not play, just need an adaptor for the intake pipe size difference. The diameter is the same size as my supra afm, and the air box has a nice round port on the intake for running a snorkel.
Ill post some pics in a minute....
$20 at the pull yard, found a rubber adaptor to fit it even.
EDIT - after a few days I got an intermittent code from it... seems to run fine, but I'll throw my stock circuit board in it. Oh well, it only takes 10 minutes. It came off a non-turbo car so idk? I didn't test it thoroughly I guess.
Sadly, it doesn't have the 3" inlet for a cone filter, but it still does the job. Its a direct plug and not play, just need an adaptor for the intake pipe size difference. The diameter is the same size as my supra afm, and the air box has a nice round port on the intake for running a snorkel.
Ill post some pics in a minute....
$20 at the pull yard, found a rubber adaptor to fit it even.
EDIT - after a few days I got an intermittent code from it... seems to run fine, but I'll throw my stock circuit board in it. Oh well, it only takes 10 minutes. It came off a non-turbo car so idk? I didn't test it thoroughly I guess.
Last edited by n16ht5; 02-06-2011 at 09:47 AM.
#3
Really? They all "plug" you know? It's the "play" part you need to be concerned with. How were you able to verify the pinouts and voltages were the same? Size isn't the only issue with these things. If they don't match up you could end up frying your ECU.
Did you just take a leap of faith? Possibly off a very high bridge?
Did you just take a leap of faith? Possibly off a very high bridge?
#6
No, you're not listening. I didn't say "will", I said "could". Big difference. And yes, you CAN fry your ECU if the pinouts and voltage requirements aren't EXACTLY the same.
Is that a pic that I'm supposed to be seeing? Because all I see is
Is that a pic that I'm supposed to be seeing? Because all I see is
#7
Registered User
Thread Starter
I was trying show a pic of my fluke meter. I just went around the pull yard looking for one that would work. I didn't know you could fry your ecu, I guess its a good thing I didn't try plugging them all in to see, I checked out about 5 different ones there lol
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#10
Yeah, that and/or continuity would be all you could test. I may have mispoke about the voltage requirement being an issue, but I'm not at all too sure how they might differ in that respect. Being that the donor VAFM isn't from another Toyota. I know Toyota uses two styles of VAFMs, some are 10V and some are 5V. I also know that if the pinouts aren't the same that could definitely cause some issues, 10V or 5V. I believe the VAFM on the 22RE is a 10V(according to the FSM).
So, if it were a 5V VAFM and you tried to put it in a 10V system you could potentially damage the circuits in the VAFM even if the pinouts were the same, and/or the ECU if the pinouts weren't the same. Not the other way around though. Putting a 10V VAFM in a 5V system would probably just cause a DTC or 2 if the pinouts weren't the same, or even if the pinouts were the same. However, the pinouts on a 10V and 5V Toyota VAFM will always be different. So just making sure you're using one with the same voltage requirement as the one it's replacing will minimize the chance of anything catastrophic occuring should the pinouts not match exactly. Atleast that's how I understand it.
Of course I could be totally wrong all together. But I'm not sure I am. Enough so that I'd be very apprehensive about trying and fit a VAFM to a vehicle that I wasn't sure had the same pinout as the one that was in there to begin with. In case it's not plainly obvious, electrical circuits and wiring aren't my strong suit. So pushing my luck, by pretending I'd have a clue whether it'd do any damage or not, isn't something I'd feel comfortable doing.
Most of what I've gathered about the two styles of VAFMs that Toyota uses comes from pages 6 & 7 of this pdf: http://autoshop101.com/forms/h24.pdf
So, if it were a 5V VAFM and you tried to put it in a 10V system you could potentially damage the circuits in the VAFM even if the pinouts were the same, and/or the ECU if the pinouts weren't the same. Not the other way around though. Putting a 10V VAFM in a 5V system would probably just cause a DTC or 2 if the pinouts weren't the same, or even if the pinouts were the same. However, the pinouts on a 10V and 5V Toyota VAFM will always be different. So just making sure you're using one with the same voltage requirement as the one it's replacing will minimize the chance of anything catastrophic occuring should the pinouts not match exactly. Atleast that's how I understand it.
Of course I could be totally wrong all together. But I'm not sure I am. Enough so that I'd be very apprehensive about trying and fit a VAFM to a vehicle that I wasn't sure had the same pinout as the one that was in there to begin with. In case it's not plainly obvious, electrical circuits and wiring aren't my strong suit. So pushing my luck, by pretending I'd have a clue whether it'd do any damage or not, isn't something I'd feel comfortable doing.
Most of what I've gathered about the two styles of VAFMs that Toyota uses comes from pages 6 & 7 of this pdf: http://autoshop101.com/forms/h24.pdf
Last edited by MudHippy; 01-29-2013 at 11:44 AM. Reason: Slightly less conjecture
#11
Registered User
So was your AFM bad and you needed a replacement ?, im not understanding why you swapped it out. You would have been better off looking for the larger AFM from a supra or cressida (P# 22250-43110), you would of had some noticable gains with it, and possibly gained a little better gas mileage.
#12
Registered User
Oh I know how to test em but does he? that's why I asked.
Just because the plugs plug in doesn't mean it's right.
Only plugs that are universal that I can think of off the top of my head is the obdii ports.
Just because the plugs plug in doesn't mean it's right.
Only plugs that are universal that I can think of off the top of my head is the obdii ports.
#13
Registered User
iTrader: (2)
So was your AFM bad and you needed a replacement ?, im not understanding why you swapped it out. You would have been better off looking for the larger AFM from a supra or cressida (P# 22250-43110), you would of had some noticable gains with it, and possibly gained a little better gas mileage.
#14
So was your AFM bad and you needed a replacement ?, im not understanding why you swapped it out. You would have been better off looking for the larger AFM from a supra or cressida (P# 22250-43110), you would of had some noticable gains with it, and possibly gained a little better gas mileage.
Year : 1982
Make : TOYOTA
Model : SUPRA
OEM# : 197100-3020, 22250-43110
Part # : AT31-4054
Description : 2.8L
Make : TOYOTA
Model : SUPRA
OEM# : 197100-3020, 22250-43110
Part # : AT31-4054
Description : 2.8L
Maybe they didn't have any 1982 Supras where he went. I'd assume that's why he got the one from the MX6 that's the same size. Make sense?
Last edited by MudHippy; 01-30-2011 at 09:41 AM.
#15
Registered User
I just put a 1989 Mazda MX6 2.2L AFM into my 90 22RE. Its the same size as a.... 1982 Supra .
Sadly, it doesn't have the 3" inlet for a cone filter, but it still does the job. Its a direct plug and play, just need an adaptor for the intake pipe size difference. The diameter is the same size as my supra afm, and the air box has a nice round port on the intake for running a snorkel.
Ill post some pics in a minute....
$20 at the pull yard, found a rubber adaptor to fit it even.
Sadly, it doesn't have the 3" inlet for a cone filter, but it still does the job. Its a direct plug and play, just need an adaptor for the intake pipe size difference. The diameter is the same size as my supra afm, and the air box has a nice round port on the intake for running a snorkel.
Ill post some pics in a minute....
$20 at the pull yard, found a rubber adaptor to fit it even.
#16
Oh shoot! I hadn't thought about that. I can find the part # for it on the same site I found the other one. Sorry, caught me slippin'.
Here ya go!
Year : 1989
Make : MAZDA
Model : MX6
OEM# : E92Z-A, E92F-A, F201-13-210, 197100-3420, 197100-3440, JE06-13-210A
Part # : AT31-4066
Description : 2.2L, W/TURBO
http://www.autoairflowsensors.com/ca...electyear=1989
With turbo? That worries me a little. I thought I'd heard you shouldn't use the turbo types on a non-turbo engine. I believe it's been done before, but I think I remember reading that he had to swap his old VAFM electronics into the turbo VAFM.
Something about the potentiometer being different between the two. It might work, but the fuelling curve isn't gonna be right. Or whatever you'd call it. Basically the signal doesn't change at the same rate based on the measured air flow, thus the fuelling will be slightly off accordingly. So it'd be telling the ECU to give you too much fuel, or too little fuel, too soon or too late. If that makes any sense. I don't know how to explain it any better. But, it's no stretch of the imagination to figure that the fuelling needs of an NA motor don't necessarily match those of an FI motor(especially if they're the same displacement).
EDIT: I guess there's two 2.2L engines for the Mazda MX6. The F2 and F2T. DX, LX, and LE have the F2, GT have the F2T. So they might not use the same VAFM, but that's all that site has listed for 2.2L MX6s.
RE-EDIT: Then again, maybe they do all use the same VAFM? That's strange....
Makes > 1989 Mazda > MX-6 GT 4WS > Air and Fuel Delivery > Fuel Injection Air Flow Meter Part Number W0133-1756279
Makes > 1989 Mazda > MX-6 GT > Air and Fuel Delivery > Fuel Injection Air Flow Meter Part Number W0133-1756279
Makes > 1989 Mazda > MX-6 DX > Air and Fuel Delivery > Fuel Injection Air Flow Meter Part Number W0133-1756279
Makes > 1989 Mazda > MX-6 LX > Air and Fuel Delivery > Fuel Injection Air Flow Meter Part Number W0133-1756279
http://www.autohausaz.com/search/pro...Air Flow Meter
Well...that's all I've got! Good luck figuring this one out. I'm just glad I don't have a 22RE, so I needn't worry about it.
Here ya go!
Year : 1989
Make : MAZDA
Model : MX6
OEM# : E92Z-A, E92F-A, F201-13-210, 197100-3420, 197100-3440, JE06-13-210A
Part # : AT31-4066
Description : 2.2L, W/TURBO
With turbo? That worries me a little. I thought I'd heard you shouldn't use the turbo types on a non-turbo engine. I believe it's been done before, but I think I remember reading that he had to swap his old VAFM electronics into the turbo VAFM.
Something about the potentiometer being different between the two. It might work, but the fuelling curve isn't gonna be right. Or whatever you'd call it. Basically the signal doesn't change at the same rate based on the measured air flow, thus the fuelling will be slightly off accordingly. So it'd be telling the ECU to give you too much fuel, or too little fuel, too soon or too late. If that makes any sense. I don't know how to explain it any better. But, it's no stretch of the imagination to figure that the fuelling needs of an NA motor don't necessarily match those of an FI motor(especially if they're the same displacement).
EDIT: I guess there's two 2.2L engines for the Mazda MX6. The F2 and F2T. DX, LX, and LE have the F2, GT have the F2T. So they might not use the same VAFM, but that's all that site has listed for 2.2L MX6s.
RE-EDIT: Then again, maybe they do all use the same VAFM? That's strange....
Makes > 1989 Mazda > MX-6 GT 4WS > Air and Fuel Delivery > Fuel Injection Air Flow Meter Part Number W0133-1756279
Makes > 1989 Mazda > MX-6 GT > Air and Fuel Delivery > Fuel Injection Air Flow Meter Part Number W0133-1756279
Makes > 1989 Mazda > MX-6 DX > Air and Fuel Delivery > Fuel Injection Air Flow Meter Part Number W0133-1756279
Makes > 1989 Mazda > MX-6 LX > Air and Fuel Delivery > Fuel Injection Air Flow Meter Part Number W0133-1756279
Well...that's all I've got! Good luck figuring this one out. I'm just glad I don't have a 22RE, so I needn't worry about it.
Last edited by MudHippy; 01-30-2011 at 02:03 PM.
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