1G maf-t
Posted By: Blayne Byrne
1G maf-t - July 19, 2011 02:02 pm UTC
Ian has a Maf-t in his car and we dont have the proper manual for it. He has the manual for version 1.3. We need the manual for version 1.7. Does anyone have this kicking around? The reason is that the 1.3 has different tuning knobs and settings. We want to make sure we get it right!
Thanks
Posted By: Blayne Byrne
Re: 1G maf-t - July 19, 2011 02:42 pm UTC
Ok, so apparently the maft we just found out is from an LS1. This may be why we cant build boost. I am guessing that this wont work with the 1G?
Posted By: Kyle Guba
Re: 1G maf-t - July 19, 2011 04:53 pm UTC
maft shouldnt do anything about boost especially if the car is running fine, as Ian says it was... He also said he hadnt done a boost leak test yet.. Do that first.. If its holding then Id say wastegate problem.. If the car is running and revving fine it should build boost...
I have spare BOVs if you need, and I have a spare 2.02 maft here .. unknown if it works though...
Posted By: Blayne Byrne
Re: 1G maf-t - July 19, 2011 06:43 pm UTC
Cool. We tried another BOV and no differance. I think we will drop the O2 housing to make sure the flapper is working on the WG. We will let ya know....and maybe try your Maft.
Posted By: Reza Mirza
Re: 1G maf-t - July 19, 2011 07:34 pm UTC
Maft won't cap the boost either. I don't see the logic behind it, especially since you say the car runs great otherwise.
Sounds like wastegate stuck open
Posted By: Kyle Guba
Re: 1G maf-t - July 19, 2011 08:07 pm UTC
I got wastegates for 16g and 14b if ya need to try them out...
Posted By: Kyle Guba
Re: 1G maf-t - July 19, 2011 08:08 pm UTC
Did you do boost leak test yet??
Posted By: Blayne Byrne
Re: 1G maf-t - July 19, 2011 08:37 pm UTC
Sounds like wastegate stuck open
You know, that seems like it could be. Because, when I get into the boost with the car, it almost sounds like there is ALOT of air leaking.....like through the wastegate....lol. I will check that for sure. And also a boost leak boys....everyone calm down.....lmao.
Thanks guys, I will go from there and see what happens.
Posted By: Reza Mirza
Re: 1G maf-t - July 19, 2011 08:46 pm UTC
Bad wastegate on a brand new turbo ?
Posted By: Jamal Qazi
Re: 1G maf-t - July 19, 2011 08:53 pm UTC
Sounds like wastegate stuck open
You know, that seems like it could be. Because, when I get into the boost with the car, it almost sounds like there is ALOT of air leaking.....like through the wastegate....lol. I will check that for sure.
And also a boost leak boys....everyone calm down.....lmao.
Thanks guys, I will go from there and see what happens.
Stop wasting your time and test for the boost leak. That "A LOT of air" your hearing is a big A$$ boost leak.
check your intercooler couplers, and all your vaccum lines...
Posted By: Blayne Byrne
Re: 1G maf-t - July 19, 2011 09:10 pm UTC
We will do the BLT first, then check the wastegate.
Posted By: Kyle Guba
Re: 1G maf-t - July 19, 2011 10:29 pm UTC
Very first thing you should have done is a leak test.. especially on a fresh build..
Posted By: Jay Stacey
Re: 1G maf-t - July 20, 2011 01:32 am UTC
I do a boost leak test about once a month. Prolly more.
IS it a ebay 16g? I have one here, and it has such a gap between the compressor and the housing.. it prolly wouldnt create more the 5psi neither. Mind you I put an mitsi 16g housing on and it fits perfect.
Posted By: Ian Burnside
Re: 1G maf-t - July 20, 2011 02:42 am UTC
It an actual MHI Evo 3 16g, which is brand new 2 years ago with very few miles on it. I know we have to do a BLT but with the car running so well (other than a few issues) its wasnt top priority. Now, it is.
Seems like the maft (which does control spark for some reason)is a bad idea and I'm going to want to replace it with an actual DSM specific one. I'll have to try yours out Kyle and I'm sure we can work out a deal.
Posted By: Kyle Guba
Re: 1G maf-t - July 21, 2011 08:27 pm UTC
Ill be going SD in my black car so i dont need it.. grab it whenever.. like i said.. unknown working.. can pull the one out of my blue car to troubleshoot.. its known working..
Did you do that leak test yet..?
Posted By: Ian Burnside
Re: 1G maf-t - August 01, 2011 03:35 am UTC
Did BLT today and massive leak found. Gets over 20 psi easily now. Still going to grab the MAFT eventually from you, I'm still thinking other MAFT isnt designed for DSM and might be causing small issues.
Posted By: Kyle Guba
Re: 1G maf-t - August 02, 2011 08:11 pm UTC
Alright, well I bought a 3 bar map and IAT last week so ill be going SD this week sometime.. the maf and maft from the blue car will be going up on the board.
Posted By: Trevor Lam
Re: 1G maf-t - August 09, 2011 12:14 pm UTC
sorry for the hijack but quick question. what would a huge boost leak sound like? when i build boost i hear a load sucking noise. always chalked it up to faster more dense air rushing through piping. i guess a blt is in order. anyone wanna help a noob in the mississauga area do his first blt. don't want to go to a shop, want to learn to do my own work
Posted By: Mike Petro
Re: 1G maf-t - August 09, 2011 01:55 pm UTC
sorry for the hijack but quick question. what would a huge boost leak sound like?
http://www.youtube.com/watch?v=UnHQKB5scSU
Posted By: Kyle Guba
Re: 1G maf-t - August 09, 2011 08:41 pm UTC
Normally it doesnt scream like that lol. although mine was doing almost the same thing lol, the gasket is like putting a blade of grass between your thumbs and blowing.. Had to get my j pipe flange milled flat..
Posted By: Kyle Guba
Re: 1G maf-t - August 09, 2011 08:45 pm UTC
I made my own with an air tire valve, a gauge, fernco plumbing rubber, and 2 inch plastic cap from crappy tires plumbing section, has been working for 2 years.. Slap it on your turbo, and pump it with air till you build 20 or so lbs of boost on the gauge, or till you hear / see / feel the air leak.
Posted By: Trevor Lam
Re: 1G maf-t - August 11, 2011 12:04 pm UTC
time to contribute to you. that is not a 1.7 maft. there is no such thing. what you are seeing is the circuit board's rev number. same as mine. that makes it a version 2, therefore follow the version 2 instructions, i have a link at home i'll post. and for some reason it does affect boost. albeit indirectly but was messing with mine and car would not enter boost in first and wierd in second because i didnt have my aux and base set right. they basically tune for injector size. for a 2g with 450 injectors its aux - 4 base - 2
off the top cant remember what it is for a 1g, again will check chart when i get home. after getting the base tune right and leaning out the lower end of my rpm band a smidge the car is like night and day now. doing it blind with no logger or gauges so dont want to go any further for fear of blowing something out but it's amazing how well it works with just base settings. if anyone wants to rent or loan a scan tool hit me up. and op i've read and tinkered for hours to get mine where
Posted By: Trevor Lam
Re: 1G maf-t - August 11, 2011 12:05 pm UTC
it's at and i feel like i have a pretty firm grasp on tuning these things now, so if you want some help hhit me up
Posted By: Rob Strelecki
Re: 1G maf-t - August 11, 2011 03:54 pm UTC
That sounds like a west coast gangsta horn
Posted By: Kyle Guba
Re: 1G maf-t - August 12, 2011 10:36 am UTC
Thanks trevor, we already figured that out about the maft.
Ian came and looked at the 2 i have, and they are the exact same his.. 2.02 or something.
Posted By: Ian Burnside
Re: 1G maf-t - August 12, 2011 03:17 pm UTC
I think i have to dial mine in a lil better. Car stalls when coming up to a stop now, so I'll have to play with the idle settings. It's weird, but it never once stalled when i had the massive boost leak.
Posted By: Rob Strelecki
Re: 1G maf-t - August 12, 2011 03:25 pm UTC
Where was the boost leak, was it after the MAF? Maybe the ECU is compensating for the leak and now you're getting the wrong fuel. I'd reset it.
Posted By: Trevor Lam
Re: 1G maf-t - August 12, 2011 04:00 pm UTC
also adjust the maft's rpm based tuning for 3000 rpm and lower. fourth dip switches between maf tuning which is just a base setup and the rpm tuning is more fine. also make sure idle enrichment is off. maybe i dont understand it too well but it was causing idle issues for me. anyone wanna loan or rent me a scan tool?
Posted By: Kyle Guba
Re: 1G maf-t - August 12, 2011 05:46 pm UTC
bring it over Ian, we'll get'er going
They are pretty simple to tune .. should get yourself an SAFC if your not gunna run link. Makes it much much much easier to tune, since your tuning each RPMx1000, instead of idle mid and wot.
Can prolly get you my old one for 100$, I sold to a guy in town, and he hasnt used it, let me know Ian
Posted By: Trevor Lam
Re: 1G maf-t - August 12, 2011 06:27 pm UTC
if he doesnt want the safc i'll buy it. mine has a pretty good baseline tune by feel but i want to lock it down a bit more and need to be able to see trims and o2 readings
Posted By: Ian Burnside
Re: 1G maf-t - August 12, 2011 09:24 pm UTC
Leak was before maf. I'm getting link eventually, just running a peckerhead chip for now. Havent driven the car enough to watch A/F's to see if its stalling because of lack of fuel.