Gstclipse69
15+ Year Contributor
- 666
- 14
- Jun 30, 2006
-
Columbia,
South_Carolina
I searched and searched but havent found anything yet.
All mods are up to date in profile.
I have recently installed a maft v2 and tial bov due to my previous bov leaking. If I had known about this mess I would have got some sort of recirc bov but the general conscencous was the tial was the best so thats what I'm working with.
Ok, I have an afc and the maft. I was, and did, set the maft to stock 450s. I thought I would merely zero out the maft and tune just like I was with the afc. No no. I reset the fuel trims before I started the car and did a boost leak test as well. My setting was -18% on the afc before at low 1k. I started the car and the stft slowly climbed to over 20. I added some fuel with the afc up to -5% and got the fuel trims in ok shape.
I thought this a bit odd, I didnt expect to mess with the settings that much but ok. Got low 2k and 3k down watched them for a couple days. Now the problem. I keep leaning out the high throttle and whatever I put it at it the wideband goes to rich at about 4k. My setting right now is -40 to -45% at 2k, 3k, 3.6k, 4k etc. And it still goes rich at about 4k.
I find it quite odd the settings vary that much and it still is running rich at wot. Is there something I'm missing?
I thought about setting the maft to 650s and tuning the rest with the afc but with the fuel trims that far apart I cant help but think something isnt right. Any ideas?
Also, for peace of mind, I notice that the tial bov is open at idle. I read one thread that said the vacuum is going to pull it open at idle and another said that it should be closed. Like I said would someone clear that up for me? I know thats an extreme newb question.
Thanks
All mods are up to date in profile.
I have recently installed a maft v2 and tial bov due to my previous bov leaking. If I had known about this mess I would have got some sort of recirc bov but the general conscencous was the tial was the best so thats what I'm working with.
Ok, I have an afc and the maft. I was, and did, set the maft to stock 450s. I thought I would merely zero out the maft and tune just like I was with the afc. No no. I reset the fuel trims before I started the car and did a boost leak test as well. My setting was -18% on the afc before at low 1k. I started the car and the stft slowly climbed to over 20. I added some fuel with the afc up to -5% and got the fuel trims in ok shape.
I thought this a bit odd, I didnt expect to mess with the settings that much but ok. Got low 2k and 3k down watched them for a couple days. Now the problem. I keep leaning out the high throttle and whatever I put it at it the wideband goes to rich at about 4k. My setting right now is -40 to -45% at 2k, 3k, 3.6k, 4k etc. And it still goes rich at about 4k.
I find it quite odd the settings vary that much and it still is running rich at wot. Is there something I'm missing?
I thought about setting the maft to 650s and tuning the rest with the afc but with the fuel trims that far apart I cant help but think something isnt right. Any ideas?
Also, for peace of mind, I notice that the tial bov is open at idle. I read one thread that said the vacuum is going to pull it open at idle and another said that it should be closed. Like I said would someone clear that up for me? I know thats an extreme newb question.
Thanks
