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06-16-2022, 12:05 PM | #1 |
Drives: 2007 5dr canadian import Join Date: Dec 2016
Location: pacific north WET
Posts: 1,025
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cold air and throwing maf codes
ive had the cold air on about a week and now suddenly throwing maf codes, is this normal from running the cold air or is the maf just shot?..neering 170,000 kilometers IE about 100k miles
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06-16-2022, 06:08 PM | #2 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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MAF has nothing to do with air conditioning. Can you tell us what the codes are?
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Synthetic Oil: Its All In Your Head |
06-16-2022, 07:41 PM | #3 | |
Gen 3 > Gen 2
Drives: NCP131, F-150 Join Date: Jul 2019
Location: Red Deer, AB
Posts: 501
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Quote:
I have a Blitz intake on from Japan and its fine. What brand is your intake?
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2014 NCP131 5 Speed 2007 F150 4.2L 5 Speed 2013 Rav4 LE AWD Autotragic - Wife's |
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06-17-2022, 11:39 AM | #4 |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,762
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If you are referring to the installation of a CAI, then we are very sensitive to the diameter of the pipe at the MAF. Without searching I'm relying on memory here, 2.25" ID. Anything larger tends to throw MAF codes.
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06-17-2022, 12:10 PM | #5 |
Drives: 2007 5dr canadian import Join Date: Dec 2016
Location: pacific north WET
Posts: 1,025
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ill take a mic to the tubing, i wish i could say it was a top name brand but...its not...but lets face it, at the end of the day its still just aluminum tubing bent to fit the body
2.25 eh, thats a good usefull number, is that at the MAF or everywhere in general? |
06-18-2022, 07:22 PM | #6 |
Drives: 2007 Toyota Yaris 3 door Join Date: Sep 2018
Location: Arizona
Posts: 405
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i know the injen cold air intake throws maf codes, i got the aem instead and its fine now
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06-19-2022, 02:49 AM | #7 |
Drives: 2007 5dr canadian import Join Date: Dec 2016
Location: pacific north WET
Posts: 1,025
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guess ill try and see if i can find an aem
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06-29-2022, 04:05 PM | #8 |
Drives: 2007 5dr canadian import Join Date: Dec 2016
Location: pacific north WET
Posts: 1,025
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one last thing on the maf thats got me wondering...
with some of you guys doing a throttle body swap isnt the cold air restricting the TB if your limited to 2.25 on the filter side of the TB by the MAF? |
06-30-2022, 08:35 PM | #9 | |
Gen 3 > Gen 2
Drives: NCP131, F-150 Join Date: Jul 2019
Location: Red Deer, AB
Posts: 501
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Quote:
Years ago I put a Crown Vic P71 80mm MAF airbox and tube onto a 2003 Lincoln Town Car(70mm MAF) with a dyno tune and picked up like 15whp lol, mind you that was a 4.6L Mod motor, so.
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2014 NCP131 5 Speed 2007 F150 4.2L 5 Speed 2013 Rav4 LE AWD Autotragic - Wife's |
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07-01-2022, 01:46 PM | #10 |
Drives: 2007 5dr canadian import Join Date: Dec 2016
Location: pacific north WET
Posts: 1,025
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having a p71 in the side yard for a friend that ive done a metric ton of work to mostly body work n mods..i know the swap your talking about...but the vics arnt restriced by the air intake tube or the maff tube, the real restriction is at the TB
and thats why i wondered about the cold air size vs the bigger TB in regards to the maf limit of 2.25 |
07-01-2022, 02:36 PM | #11 |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,762
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I could be way out in left field and asleep at my post but I believe we are dealing with volume and velocity metrics. The MAF is sensitive to volume of air which is impacted by tubing diameter. It doesn't care about changes in velocity which would be altered by TB restrictions.
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07-03-2022, 03:14 PM | #12 | |
Drives: 2007 5dr canadian import Join Date: Dec 2016
Location: pacific north WET
Posts: 1,025
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Quote:
a TB is on my todo list as i want to lose the 10% throttle dead spot at the bottom and the slow response |
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07-03-2022, 05:32 PM | #13 | |
Gen 3 > Gen 2
Drives: NCP131, F-150 Join Date: Jul 2019
Location: Red Deer, AB
Posts: 501
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Quote:
All without having to fart around with getting the TB mod to play nice with the car. I wouldn't recommend it if you're over 6ft tall though, you lose a bit of right leg room due to the gas pedal sitting higher than before.
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2014 NCP131 5 Speed 2007 F150 4.2L 5 Speed 2013 Rav4 LE AWD Autotragic - Wife's |
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07-04-2022, 12:31 AM | #14 |
Drives: 2007 5dr canadian import Join Date: Dec 2016
Location: pacific north WET
Posts: 1,025
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that sounded GREAT ..untill you mentioned 6ft...im 6'4 and look like a giant in the yaris
is there any other way round the "dead space" throttle..it annoys both me an my wife ALOT.....makes me miss a cable still its worth looking into i mean im a fabricator so i really just need something thats plug n play..fitment isnt as imporant as i can probably modify the OE parts crossed with the lexus unit....or...if theres any other unit that techincaly works but doesnt fit im all ears |
07-07-2022, 07:57 AM | #15 | |
Gen 3 > Gen 2
Drives: NCP131, F-150 Join Date: Jul 2019
Location: Red Deer, AB
Posts: 501
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Quote:
I still hated how light the stock gas pedals are in these cars(my other vehicle is a manual F150) and the position made it difficult to heel-toe downshift, so I did some digging and thats when I came up with the IS250 gas pedal and Vitz RS adapter bracket combo. https://www.yarisworld.com/forums/sh...ad.php?t=56269 Check out this thread, this is where I got the idea of putting pieces of cardboard in the stock pedal to help eliminate the infuriating 1/4 inch dead spot on the stock pedal. I highly recommend it.
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2014 NCP131 5 Speed 2007 F150 4.2L 5 Speed 2013 Rav4 LE AWD Autotragic - Wife's |
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07-07-2022, 11:19 PM | #16 |
Drives: 2007 5dr canadian import Join Date: Dec 2016
Location: pacific north WET
Posts: 1,025
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that is GREAT information...what i really need to do is hit up a wrecker and rip a pedal assy apart and see if i can "adjust" the pot in it or find another way of fixing it without spacing it...and at the same time see if the spring can be re-worked internaly
im totaly with you on the "light" pedal....EVERYTHING else i own is cable opperated and most of those are CARBS..which ive put even beefier springs on them..i like a semi heavy throttle partialy for feedback partly for my big feet does the IS mod give it a stiffer heavy pedal? |
07-10-2022, 05:22 PM | #17 | |
Gen 3 > Gen 2
Drives: NCP131, F-150 Join Date: Jul 2019
Location: Red Deer, AB
Posts: 501
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Quote:
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2014 NCP131 5 Speed 2007 F150 4.2L 5 Speed 2013 Rav4 LE AWD Autotragic - Wife's |
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07-11-2022, 01:48 AM | #18 |
Drives: 2007 Toyota Yaris 3 door Join Date: Sep 2018
Location: Arizona
Posts: 405
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would this work on a second gen yaris for the is250 pedal swap? you mind taking some pics of it?
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