Hi Kelvin. So what I understand is that the 1uzfe vvti motor uses the small afm (almost look like the Toyota 1gr) not the big cone tipe. My motor was installed with the big one.
Hey kelv hello from Thailand, do you know the reading ranges for each afm? I have a gen 1 and wondering if I can use another type with similar flow ranges? I know the iat sensor should be more or less the same but the afm sensor may or may not be different. Or is it just cheaper to replace it? They are so old the chances are any 2nd hand ones are already stuffed?
Quick question from 1996 sc400 owner. I'm looking at custom air intake and it appears that, the ECU will go to a factory base setting if the MAF is removed. I've heard that adjusting the TPS 2 clicks counter clockwise and disconnecting the MAF will improve performance/HP. PS I'm in the USA and have no emission testing and not concerned about check engine light.
Ive seen guys running no MAF on stock ecu and they have no idea how good a well setup UZ goes with a correctly working MAF. Removing the MAF drops power. Adjustment of the TPS does not fix this. Cheers Kelvin
@@CartuneNZ Actually, my UZ is pulling hard through all RPM's on stock tune: full back exhaust w/ headers/custom intake, port matched upper and lower intake/head ported(intake only), hydro fan delete, EGR delete and water meth inj. I just read this offers power gains and questioned this myself, so reached out to u guys for better understanding...thanks!
Hey kev i just bought a series one AFM from china for about $50 bucks and plugged it in and it still sucks, it feels like its on a fuel limiter and then afterwards gives you full throttle, have you had any experience with these? Currently running with the MAF unplugged so im at a loss right now
Hey I have a question! I have a 1995 SC400 non-vvti 1uzfe and I’m planning on turboing it soon but I wanted to know what to do with the MAF sensor. Is there a way to delete it ? I was planning on running low boost 5-7 PSI (Single Turbo) and I have a Apex neo AFC that I got from a friend. I’ve seen some stuff about MAF adapters and what not but I’ve seen many other turbo set ups that don’t have MAF sensors or are deleted but many people are running standalone ecu. If you can help me out I’d appreciate it a ton !
Any ecu needs some kind of load sensor, whether it is a MAF or MAP sensor or its tuned with TPS as a load signal. I generally go aftermarket as then I use a MAP sensor and tuning is easy. Cheers.
Did you watch the video and see there are different AFM? Which one do you have? which wires are you testing? I dont normally test with resistance, I use voltage on hotwire units or frequency on the early ones
@@CartuneNZ it’s the karmon with the photo cell ...1992 ls400 (USD) I have the factory manual but the range isn’t too specific. But I did swap out with a reman but the reman did the same thing. Starts up fine idles fine then when hit the accelerator it falls out and drops the 31 code. I think I will have to check the Ecu and compare the readings to the manual. Thank you for replying. The reman however does have a wire it looks like they added it though through the plastic. Mine is all plastic and you don’t see any wire.
I have an original karman-vortex mass airflow sensor on my Lexus SC400 1uz Fe. Evidently it cannot be clean with mass air flow cleaner.I went to the auto shop and they had a Beck and Yardley for $419 with the bass and the sensor but I don't know that it's a karman-vortex do you have any suggestions.I know you said to go to Toyota DYI and order it but I haven't checked those prices yet but I will. The car has the original Fuji MAF. Only has a hundred and Thirty-One thousand miles on it which is great but it is 26 years old.
Toyodiy is a parts number system, nothing is able to be ordered there. If I diagnose a karman vortex afm as stuffed then cleaning cant make it fail, but cleaning it may fix it. We see quite a few very dirty units and I clean them, carefully. Best to view the possible replacement as per the video the difference is pretty easy to tell. Cheers
I bought one of those cans of CRC mass air flow sensor cleaner and it said not to use it on the Lexus and one said even especially the 1uz Fe. Thanks for sharing your knowledge with us out here who are not so knowledgeable.I've just read that it could ruin it and although it's really messing up bad since it's the only one I got since I've ordered two that didn't work I was worried but I'll give it a try thank you.
Can't break something thats broken. Even I struggle to find good ones. Ww used to have a rebuilter in oz that did a great job but they have since stopped.
@@CartuneNZ it's still barely works for now the problem is I can't even see a filament it's just a slit in the plastic running from the top to bottom and at the bottom 1/4 inch rectangle with a piece of plastic over it, I can't even see a filament to clean on the sensor. Thanks for your help and advice. I'll keep plugging that it.other parts they say that will fit it have wires and filaments on the outside that aren't even protected or a wire filament that I can clearly see from the side. Thank you. May try to get in touch with you in a few weeks or whenever this gives out about this Beckk and Yardley piece for $412.if you could leave a way I can order from Toyota or look at their stuff that would be helpful. Have a good one. 👍. Since you're a busy man running your own shop and helping us dummies out hereforget that last part unless I come back begging I'll try to find my own Toyota place here in the US I'm not good with computers or phones but I should able be able to that. 👍
Me neither! Did you work out why you had no power @paulslapcm? @CartuneNZ am I right in thinking there is no idle control valve power either then as comes from same source?
When I use a gen 2 wiring loom on a gen 1 engine I always use the matching gen 2 afm , ignitors and ensure engine has correct injectors. Then they run correctly.
Probably leave the "like comment and subscribe" bit till the end. Feel like it's asking people to subscribe before they have even watched enough to figure out if you are talking trash or actually know what's up. My 2c haha. Nice content, really interesting to me.
Thanks for that. Id prefer not to ask at all but I get more sub's when I ask. Having a short version first some people so I'd miss them. I like all the detail myself, just the sort of person I am. It's hard getting all the stuff out of my head so others can benefit as well.
@@CartuneNZ Haha yeah man I'm the one who fixed your motec the other week. I don't have anything fast, just an mr2 stuck in the shed and a crap daily car
@@ReubenHorner Got it. Awesome job. Did you see the video I did of me running up the Motec on the bench for you , but didn't get it uploaded in time? Although I now have to continue using the old M8 as we have a spare. haha. We are getting a new hull though.
Hey Kelvin. Here in the states, the MAF for the Gen 1 1UZ Non-VVTi is discontinued by Toyota/Lexus and is unavailable for purchase. Do you know of any quality aftermarket sensors, or should I just try to gather sensors from salvage yards/dismantlers? Or if the sensors are available brand new out there in NZ, are you able to ship to the states?
when in doubt, consult video's from the UZ whisperer. Once again found my answer. Thanks Kelvin
thank you!
This helped heaps!
Manage to find the correct part for my 1uzfe.
Glad it helped!
nice, very informative and helpful. just got into the 1uzfe
Welcome aboard. Thanks for the compliment. I'm trying to resolve the issue of too much poor or incorrect information on the internet on 1uz. Cheers
Hi Kelvin. So what I understand is that the 1uzfe vvti motor uses the small afm (almost look like the Toyota 1gr) not the big cone tipe. My motor was installed with the big one.
Ok.
Hey kelv hello from Thailand, do you know the reading ranges for each afm? I have a gen 1 and wondering if I can use another type with similar flow ranges? I know the iat sensor should be more or less the same but the afm sensor may or may not be different.
Or is it just cheaper to replace it? They are so old the chances are any 2nd hand ones are already stuffed?
Quick question from 1996 sc400 owner. I'm looking at custom air intake and it appears that, the ECU will go to a factory base setting if the MAF is removed. I've heard that adjusting the TPS 2 clicks counter clockwise and disconnecting the MAF will improve performance/HP. PS I'm in the USA and have no emission testing and not concerned about check engine light.
Ive seen guys running no MAF on stock ecu and they have no idea how good a well setup UZ goes with a correctly working MAF. Removing the MAF drops power. Adjustment of the TPS does not fix this. Cheers Kelvin
@@CartuneNZ Actually, my UZ is pulling hard through all RPM's on stock tune: full back exhaust w/ headers/custom intake, port matched upper and lower intake/head ported(intake only), hydro fan delete, EGR delete and water meth inj. I just read this offers power gains and questioned this myself, so reached out to u guys for better understanding...thanks!
Hey kev i just bought a series one AFM from china for about $50 bucks and plugged it in and it still sucks, it feels like its on a fuel limiter and then afterwards gives you full throttle, have you had any experience with these? Currently running with the MAF unplugged so im at a loss right now
Thank you very much
Informative as usual
Have a grate 1
Thanks. Im trying hard to get the right info out there. Cheers Kelvin
Hi Kelvin, my 95 SC400 is throwing code 31 not sure why I have the 1st gen AFM.
I would recommend correct diagnosis. Cheers Kelvin
Hey I have a question!
I have a 1995 SC400 non-vvti 1uzfe and I’m planning on turboing it soon but I wanted to know what to do with the MAF sensor. Is there a way to delete it ? I was planning on running low boost 5-7 PSI (Single Turbo) and I have a Apex neo AFC that I got from a friend. I’ve seen some stuff about MAF adapters and what not but I’ve seen many other turbo set ups that don’t have MAF sensors or are deleted but many people are running standalone ecu. If you can help me out I’d appreciate it a ton !
Any ecu needs some kind of load sensor, whether it is a MAF or MAP sensor or its tuned with TPS as a load signal. I generally go aftermarket as then I use a MAP sensor and tuning is easy. Cheers.
My man can you tell me at 80 degrees if 1.7 Kohms means my air flow meter is ok?
Did you watch the video and see there are different AFM? Which one do you have? which wires are you testing? I dont normally test with resistance, I use voltage on hotwire units or frequency on the early ones
@@CartuneNZ it’s the karmon with the photo cell ...1992 ls400 (USD) I have the factory manual but the range isn’t too specific. But I did swap out with a reman but the reman did the same thing. Starts up fine idles fine then when hit the accelerator it falls out and drops the 31 code. I think I will have to check the Ecu and compare the readings to the manual. Thank you for replying. The reman however does have a wire it looks like they added it though through the plastic. Mine is all plastic and you don’t see any wire.
I have an original karman-vortex mass airflow sensor on my Lexus SC400 1uz Fe. Evidently it cannot be clean with mass air flow cleaner.I went to the auto shop and they had a Beck and Yardley for $419 with the bass and the sensor but I don't know that it's a karman-vortex do you have any suggestions.I know you said to go to Toyota DYI and order it but I haven't checked those prices yet but I will. The car has the original Fuji MAF. Only has a hundred and Thirty-One thousand miles on it which is great but it is 26 years old.
Toyodiy is a parts number system, nothing is able to be ordered there.
If I diagnose a karman vortex afm as stuffed then cleaning cant make it fail, but cleaning it may fix it. We see quite a few very dirty units and I clean them, carefully. Best to view the possible replacement as per the video the difference is pretty easy to tell. Cheers
Thanks a lot buddy.
I bought one of those cans of CRC mass air flow sensor cleaner and it said not to use it on the Lexus and one said even especially the 1uz Fe. Thanks for sharing your knowledge with us out here who are not so knowledgeable.I've just read that it could ruin it and although it's really messing up bad since it's the only one I got since I've ordered two that didn't work I was worried but I'll give it a try thank you.
Can't break something thats broken. Even I struggle to find good ones. Ww used to have a rebuilter in oz that did a great job but they have since stopped.
@@CartuneNZ it's still barely works for now the problem is I can't even see a filament it's just a slit in the plastic running from the top to bottom and at the bottom 1/4 inch rectangle with a piece of plastic over it, I can't even see a filament to clean on the sensor. Thanks for your help and advice. I'll keep plugging that it.other parts they say that will fit it have wires and filaments on the outside that aren't even protected or a wire filament that I can clearly see from the side. Thank you. May try to get in touch with you in a few weeks or whenever this gives out about this Beckk and Yardley piece for $412.if you could leave a way I can order from Toyota or look at their stuff that would be helpful. Have a good one. 👍. Since you're a busy man running your own shop and helping us dummies out hereforget that last part unless I come back begging I'll try to find my own Toyota place here in the US I'm not good with computers or phones but I should able be able to that. 👍
Hi kelvin
You are the best
Thanks for the compliment. Cheers Kelvin
Great one, thank you
Glad you liked it!
i got no power going to my air flow meter ion my 1uz
Well its not going to run very well. Might want to address this issue.
Me neither! Did you work out why you had no power @paulslapcm? @CartuneNZ am I right in thinking there is no idle control valve power either then as comes from same source?
@@J444AAAAAD this is all covered in my wiring instructions which I sell.
@@CartuneNZ Thanks Kelvin, is the price 170nzd along with 20 minutes of your time for questions still?
it doesn't go at all I've emailed your company for help
What happens when you use gen2 wiring on gen1 engine, will I need to change the afm and use gen2 afm?
When I use a gen 2 wiring loom on a gen 1 engine I always use the matching gen 2 afm , ignitors and ensure engine has correct injectors. Then they run correctly.
Probably leave the "like comment and subscribe" bit till the end. Feel like it's asking people to subscribe before they have even watched enough to figure out if you are talking trash or actually know what's up. My 2c haha. Nice content, really interesting to me.
Thanks for that. Id prefer not to ask at all but I get more sub's when I ask. Having a short version first some people so I'd miss them. I like all the detail myself, just the sort of person I am. It's hard getting all the stuff out of my head so others can benefit as well.
@@CartuneNZ nice man, the stats don't lie
@@ReubenHorner Yep. Do you have a 1uz powered vehicle? Or have an interest in car related stuff in general?
@@CartuneNZ Haha yeah man I'm the one who fixed your motec the other week. I don't have anything fast, just an mr2 stuck in the shed and a crap daily car
@@ReubenHorner Got it. Awesome job. Did you see the video I did of me running up the Motec on the bench for you , but didn't get it uploaded in time? Although I now have to continue using the old M8 as we have a spare. haha. We are getting a new hull though.
Hey Kelvin.
Here in the states, the MAF for the Gen 1 1UZ Non-VVTi is discontinued by Toyota/Lexus and is unavailable for purchase. Do you know of any quality aftermarket sensors, or should I just try to gather sensors from salvage yards/dismantlers?
Or if the sensors are available brand new out there in NZ, are you able to ship to the states?
Same here, new are discontinued, so we are using tested secondhand units.