Help me tune please!!!!

[Kilo_SME]

So I finally got a logger for my car but now I don't know what to do from here. How do I read the narrow band in volts (I think that's what they are in) . I'm get like 14 counts of knock on some pulls then non on others. Also timing adavance like 58%. Is this all bad? I just need a lil guidance.

Thanks

[Steve '92ES]

Here's a couple of links I found helpful when I got my logger:
TMO Datalogger 101 (http://www.vfaq.com/TMO/)
Stealth 316 - TMO Tech (http://www.stealth316.com/2-tmo2.htm)

It's a bit of an art interpreting the data but these should get you started.

[dpartinvr4]

upload your logs, and we can look at them and try and help you. what do you have for "tuning"? the logger just lets you see what is going on, it doesn't let you "change things"

[Kilo_SME]

upload your logs, and we can look at them and try and help you. what do you have for "tuning"? the logger just lets you see what is going on, it doesn't let you "change things"

I have a safc yea I will try to get the logs up here asap. My car is lean missfiring in-between shifts and the logger logged about 28 counts of knock at about 6 degrees advtiming.let me get the logs up here so you can take a look for yourself. Do I have to have Microsoft excel to extract the logs? Also just so you know I'm a atx running on a NA ecu.

[dpartinvr4]

excel would probably work best, my HHH has an export option that just shoots everything to excel.

[Kilo_SME]

excel would probably work best, my HHH has an export option that just shoots everything to excel.

Does HHH Work on plams?

[dpartinvr4]

Hand Held Halo is my logging software, I was just saying, exporting to Excel is an option mine has, yours will probably have something similar.

[Kilo_SME]

Yea I thought hand held halo was PC only.

[Kilo_SME]

Could my bov Be messing with my readings cause I'm getting alot of knock and back fire during shifts. Damn this NA ecu.lol. Also the tps on my logger is at 14% at idel and goes to like 96% but my afc. Goes across the band. I'm going to try and get a video untill I can upload these logs.

[green-lantern]

What injectors are you using?

[Kilo_SME]

Stock tt

[green-lantern]

Resistors? If you don’t have them you might want to put some in soon. Are you sure the injectors are OK? Have they been flow tested?

[Kilo_SME]

Yes the resistors are wired in. They should be ok I mean the car is getting enough fuel just when the transmission goes to shift I get some mean back fire and and about 21 counts of knock. I really need to get these logs up here so you giuys can check them out. Is there any other data loggers for the palm other than mmcd. Also what my logger and safc having different readings? Is that normal and which should I go by.

[B-Man]

What boost? Are you a TT swap? what motor? NA ECU isn't really meant to see the Airflow readings from a TT. Check and make sure those look reasonable.

Sounds like you need someone who knows what they're doing to show you what to do just to get you started.

You should be able to export your logs as CSV (comma seperated values). Otherwise you can use OpenOffice if you don't have excel.

[Kilo_SME]

No its a conversion on wastegate boost 10:1. I know I really need a wideband but this is all I could get for now.

[B-Man]

No its a conversion on wastegate boost 10:1. I know I really need a wideband but this is all I could get for now.

10:1, no WBo2, and NA ECU. I'm sorry, but you're in for a world of hurt.

[RL7]

Don't try to tune off narrowband readings. It's a waste of time. A narrowband is only meant to target 14.7 and communicate to the ecu whether it is above or below that and only at certain times. I'm not convinced the narroband readings aren't just BS in open loop. The atx models have something called a "reduce torque request" or something like that and it's meant to make shifting smoother. I assumed that just reduced timing, but I'm not sure. It could have something to do with your knock. I have an atx tt with a tt ecu, so this communication between the tcu and ecu does not happen. Shifts are jerkier, but no knocking. More likely than that, you are running out of fuel as you get into higher rpms. You will have trouble getting a reasonable tune without a wideband and you have a much greater risk of doing serious damage to your engine. You are also going to want a tt ecu or a way to adjust timing. The na timing maps could be causing the knock.

[Kilo_SME]

Yea I'm starting to think it's the NA ecu. I just can't get the knock out. Its funny cause it wasn't doing this until I got the logger hooked up. I also don't think the wideband is goin to help me with this. Can my bov be messing with how the car shifts.

[B-Man]

Yea I'm starting to think it's the NA ecu. I just can't get the knock out. Its funny cause it wasn't doing this until I got the logger hooked up. I also don't think the wideband is goin to help me with this. Can my bov be messing with how the car shifts.

You've asked for help and ignoring what we've been suggestion.

A blow off event shouldn't happen during a shift on an auto trans. The engine is constantly under load.

[Kilo_SME]

You've asked for help and ignoring what we've been suggestion.

A blow off event shouldn't happen during a shift on an auto trans. The engine is constantly under load.

Oh ok so if I get a wideband I should be able to work it out. Just asking but has anybody ever used a NA ecu on a atx
I know I need both but what would benefit me more right now, a wideband or a tt ecu. I can't find a 1st Gen ecu for reasonable price anywhere so if I could work this out with just the wideband that would be great. Also has anybody ever had problems with the eBay wideband units.

[B-Man]

When I did my TT swap on 10:1, I used a TT ECU, a wideband and MAFT Pro. With the TT ecu there wasn't much I had to adjust on the MAFT Pro to get it running well on wastegate. I would think a TT ECU would help the most, but in reality, to do it right, you need both.

[B-Man]

BTW, did you figure out how to post logs yet? I'm curious to see what the NA ecu does with boost.

[Kilo_SME]

BTW, did you figure out how to post logs yet? I'm curious to see what the NA ecu does with boost.

I'm goin to get those up ASAP. I have to get a adapter for the cable to hook up to the computer. Which ecu do i need? 9966 or 9965? I might be able to get a good deal on a tt Ecu.

[RL7]

ECU should match the harness and the Cam/Crank sensor set up and whether you are cali or fed. Usually fed will be the way to go. You said first gen, so you would want a 91-92 ecu for a single cam/crank sensor and a 93 for separate sensors. I think 9965 is cali 91-92 and 9966 is fed 91-92.

[B-Man]

I ran a cali spec ECU just fine.

ECU Part Numbers...JOHN MONNIN'S PERSONAL 3000GT/STEALTH FAQ (http://www.wrenchmonkey.com/Webpages/ECUpartnumbers.html)

Either of them should work but try to get a 9966

0663 should work, you'll just have to do some work with the radiator fan system.

[Kilo_SME]

I'm a 93 so they won't work for me. I'm ordering a wideband and tt fuel pump ASAP so hopefully I can get this worked out. I think I'm get the lean missfire because the narrowband o 2 is trying to lean the car out at wot. I also found how to get the logs on my computer but its a spreadsheet. Can't I just unplug my narrowband and just plug the wideband in and tune off that cause I want to do away with the narrowband altogether.

[RL7]

You can. That's what I do.

[dpartinvr4]

I'm a 93 so they won't work for me. I'm ordering a wideband and tt fuel pump ASAP so hopefully I can get this worked out. I think I'm get the lean missfire because the narrowband o 2 is trying to lean the car out at wot. I also found how to get the logs on my computer but its a spreadsheet. Can't I just unplug my narrowband and just plug the wideband in and tune off that cause I want to do away with the narrowband altogether.
IIRC the ecu doesn't use o2 sensors at wide open throttle, only maf and tps.

[Kilo_SME]

Can your tps go bad? Or can not having the tps adjusted write cause problems. Because I know for a fact my tps is all off and I really didn't think this could effect anything.

[dpartinvr4]

Can your tps go bad? Or can not having the tps adjusted write cause problems. Because I know for a fact my tps is all off and I really didn't think this could effect anything.
your TPS should read around 13% at idle, and about 98% at WOT, roughly,

[Kilo_SME]

Ok got the wideband and the tt fuel pump is on the way. Now just to be sure can I just leave the narrowband hanging or whatever and put the wideband in place of that.

[dpartinvr4]

Which wideband did you get, mine has 1v and 5v out so I can splice into the old line and not throw a cel, and the 5v is for my logger.

[DrGonzo]

Knocking when shifting is most likely due to the N/A ECU not having the fuel maps to adjust the ACLE "Accelerator enrichment" enough to stop the motor from going lean during shifts. If you pump the gas pedal hard and let off I bet you will see knock also. this is all controlled by the ACLE stored in the ECU. You need to either switch out to a TT ECU or standalone as ACLE is not adjustable with the SAFC.

[RL7]

You probably will want to disconnect the narrrowband rather than just let it hang so you don't risk it getting weird lean readings all the time. Your car will run probably run pretty rich in this condition, it will be in open loop all the time, and you may throw a CEL.

[Kilo_SME]

Ok something is very wrong here!!!! So I haven't had my logger hooked up to the car for about a couple of days and I went from mmcd 1.5 TO 1.8. So I hook the logger up before I head to work and what I see on my there is just crazy. 26 counts of knock at only like 40% throttle l. WTF I wont be able to get the wideband in till this weekend so I can see my a/f ratio. I also haven't changed the plugs yet but I'm goin to try to get everything on this weekend. Also the wideband is a aem from eBay brand new. Let me also add that I was running low on antifreeze and the car was getting kind of hot so I'm goin to let it cool down a little and see what I get than. I would also like to thank everyone for your help. I really appreciate it.
I

[RL7]

You should not be driving the car like this, but since you apparently have to, you really need to baby the crap out of it until you get the fuel pump in. Try to stay under 30% throttle. You should post up your logs or just type up the lines around the knocking. When you install your wideband you can run an output wire to the egrt input on the ecu and log it through mmcd. If there is something rattling around in the engine bay the knock detector could be seeing false knock, but I don't think this is the case here. What are the fuel trims at? With all the extra fuel, the ecu is probably doing it's best to lean things back out. You may be better off unplugging the narrowband(s) now and pulling the negative terminal of the battery for a few minutes to reset the ecu.

[Nihil]

save your logs as .csv files then go to this site Zoho Sheet - Online Excel Viewer (http://sheet.zoho.com/excelviewer) upload your file, it'll convert it to an .xls file which will be a lot easier to read. You could also delete the comma areas where nothing was being logged, then upload to that site and it'll have everything you logged, right next to each other so it's even easier to follow, but that's a lot more work than it's worth (if you understood that)

Anyway, good luck, baby your car and even then...when baby-ing it, keep the load light...

Another thing too, you can just take a screen shot of your log and post up as a picture, so more people will be inclined to view it, since they won't have to download it, to do that (incase you don't know) open log of to full screen, press print screen button, then open up mspaint and press control v

[Kilo_SME]

Finally, I got some logs up. Let me know if this is ok to view. This is from today. It was way cooler today then yesterday and these are just to short pulls. After the second pull you can see when it shifted it got some real bad knock and after the car seemed like one of the cyclinders wasnts hitting for a while then it smoothed back out.
http://i561.photobucket.com/albums/ss54/Kilo_SME/ScreenHunter_11Mar241859.jpg
http://i561.photobucket.com/albums/ss54/Kilo_SME/ScreenHunter_12Mar241859.jpg
http://i561.photobucket.com/albums/ss54/Kilo_SME/ScreenHunter_09Mar241858.jpg
http://i561.photobucket.com/albums/ss54/Kilo_SME/ScreenHunter_10Mar241859.jpg

[DrGonzo]

Where is your front O2 sensor?? Did you not log it??

[Kilo_SME]

its a na ecu remember.lol

[Kilo_SME]

Ok so the fuels pump is here. I'm goin to try to get everything put in this weekend. What spark plug gap do you recommend? Also the wideband doesn't have a 1v output so what should I do about the stock o2? Should i just get the bung that came with the kit welded on and leave the narrowband in too, of can I splice in the wiring harness on the arm sensor?

[Chris@Rvengeperformance]

yes leave the stock narrowbands in and weld the bung after where the 2 pipes come together.

Needs to be between 9 an 12 o'clock to make the sensor stay dry and last longer.