So during, and after getting my car tuned, after i go wide open throttle, it ran so lean that it would bog and the digital wideband would just read "lean". After killing the engine and restarting it, back to normal. Drove normal until i floored it, then same deal. The car would drive just fine under normal conditions, and pulled hard when i floored it, but after letting off the gas, and trying to drive normal again, super lean until i restarted it.

Since the original tune, I reburned the same map, on the same chip, and it helped, but not a lot. Now, after going WOT, the car bogs and studders only from 1500-3000rpms. What would cause the car to only run super lean like this after its been floored???

All i have to do to fix it is a quick restart, but that gets really really annoying really fast.

 

do you have a map we can see? who tuned it? Sounds like you need more fuel up top. Can you datalog to see exactly when it starts to run lean.

 

what kind of wideband?

what tuning program?

please follow the rules of the forum and provide complete information.

 

Tell us about the engine and fuel system. How much power you're making and what mods you have.

 

I'm betting Crome, bump up to 1.5 and rebuild the map. If you don't know how to do that let me know.

 

sorry about the lack of information.

Motor is f20b with complete bolt ons. stock internals besides h22 type s camshafts. street tuned on crome pro. ill try to dig up the map. thanks for the help.

 

Motor is in a 90' accord. Stock fuel pump and lines, h22 injectors, AEM fuel pressure reg.

 

TPS set correctly?

bin/logs of event happening?

 

tps reads 97% at wide open

 

could someone explain to me how to post my map?? i have it saved on my computer as a bin file

 

easy way to fix is to logg and see where it is running then then u can go to the emulator and change them cells.when u see the cells or group of cells u need to change just highlight the group and richen the fuel i bit,but keep an eye on the wideband to see what air/fuel ratio is.

 

host it somewhere and link to it on here, or send it to me and I'll host it. (relic1@gmail.com)

 

its fine all the time, until i floor it, then it messes up. adjusting it doesnt help, it will just lean out again after i floor it again.

 

does TPS log to 100%?
do you get the correct map pressure?

 

WOT TPS reading doesn't matter near as much as idle TPS reading. Especially after a WOT pull.

 

i sent you the map, thanks

 

bin - http://www.b18c5eg.com/images/...l.bin

my critique.
the ignition maps made me laugh, out loud. (the graphs should be smooth not like someone had a seizure while holding a pencil and falling to the right)
the fuel maps look odd also, I doubt your A/Fs are where they should be.

I'm guessing he tuned full throttle only and left the rest to luck. And it's screwing you.

bottom line, get a different tuner. I wouldn't run those maps in a car that I hated. Especially since you're open loop, and everything is disabled. (reminds me of a POS Ebay special)
Sorry if I sound harsh, I get annoyed easily when I see "tunes" like this.

 

wow that map is [freak]ed i wouldnt even run that in my lawnmover.

 

ugh are you serious? He tuned partial throttle as far as i know. I'll ask him about the ignition tuning or whatever

 

he disabled my o2 sensor also as far as i know

 

I'm the tuner and here's a PM I sent him

He's right to a point. The timing graphs do look out of whack. I don't know what I was thinking/doing. I guess I must have been so preoccupied about the fuel cutoff thing that I ignored the timing. If I would have seen that before, I would have shat myself. That is def not a damn tune I'd hand out to someone.

I'll send you a revised map of the timing and see if it helps any. Though, the timing maps were screwed up a bit, I doubt smoothing them out will do any good to resolve your problem.

I did tune your WOT and part throttle. You get good mileage right? Trust me, you would know if I hadn't tuned your part throttle, you'd get horrible gas mileage.

Your car is running fine except this one glitch. I've never had that problem before with anyone else besides you.

Sent it to your email.


His setup is as follows
F20B converted to obd1
Skunk2 IM and TB
H22 345cc injectors(peak and hold)
ESP-net header
2.5" exhaust
JDM Type S cams


We had TONS of issues with this car. The throttle body AND tps were way out of whack before I ever touched it. The TB stop screw had the throttle open quite a bit. I didn't realize this until I had finally gotten frustrated trying to adjust the TPS so many times. I adjusted it as best as I could, with the time I had. (We were at his house, which is 2 hours away from mine)

I spent nearly an entire day installing his header, switching from his previously installed obd2 saturated injectors(he was running them WITH resistor box) and messing with his TPS/TB adjustments.

After we got all the things installed, we spent about an hour doing 3rd gear pulls on the highway. It took so long due to the AFR CHANGING itself. I'd set it for 13.5 AFR at a certain point, and it would either go lean, or go rich. It would always change.

Then finally, we get an IAT code. Pulled it out and come to find out, it's completely fried(iat plug switched with iacv). Pulled the one out of my car and went at it again. This time, afr stayed where I set it to.

I tuned his WOT to a 13.3-13.5 a/f ratio. But during throughout the entire tuning session, we had this stupid problem that he is asking help on. The car would go lean ONLY after doing a WOT run. He had to reset the ignition for it to run normal again. I got in contact with as many people as I could asking about this issue, and only one had had this same problem before. They said all they did was start fresh with a new bin and copied all the values from the old map.

We tried just that, and it seemed to help the problem out some.

I believe he gets pretty damn good gas mileage if I remember correctly. This is with a super short transmission at that(t2w4 I think it is).

I don't know what to do about his fuel cut off issue. My only guess is that he somehow fried the resistor box while he was running the obd2 saturated injectors.


Modified by d112crzy at 7:26 AM 9/7/2008


Modified by d112crzy at 7:32 AM 9/7/2008




Modified by d112crzy at 8:48 PM 9/7/2008

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fatboy1185 &raquo;</TD></TR><TR><TD CLASS="quote">he disabled my o2 sensor also as far as i know</TD></TR></TABLE>


they disable the o2 cause its a narrow band sensor,they shut it off so they can use the wideband.all tuners should be using a wideband to do any tuning.why not get a screen shots of your map and post them up

 

I wish I had some logs of this tune session still.

I just recently got my laptop running again because the mother board AND HDD were screwed up. So I lost ALL my maps and any other info I had on my laptop.

Also, I no longer live in Washington. If I did, I'd still be trying to help him out on this issue.

We're friends, kinda. We met through another friend of mine. We've chilled before, so it's not like I'm some random tuner he heard of and I'm trying to make an easy buck off him. I spent way too much time working on this car to get it running the way it is to make an easy buck. I spent the money he payed me on food/gas and buying random parts he needed to get running right due to him not having any more money.

Modified by d112crzy at 7:37 AM 9/7/2008


Modified by d112crzy at 7:43 AM 9/7/2008

 

thanks for the imput jose.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d112crzy &raquo;</TD></TR><TR><TD CLASS="quote">I just recently got my laptop running again because the mother board AND HDD were screwed up. So I lost ALL my maps and any other info I had on my laptop.</TD></TR></TABLE>

This is why I tell my fellow tuners to make backups of their tunes/datalogs. That way a customer cannot come back to haunt you after you laptop died.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d112crzy &raquo;</TD></TR><TR><TD CLASS="quote">We're friends, kinda. We met through another friend of mine. We've chilled before, so it's not like I'm some random tuner he heard of and I'm trying to make an easy buck off him. I spent way too much time working on this car to get it running the way it is to make an easy buck.</TD></TR></TABLE>

This is just more proof that "no good deed goes unpunished". I feel for you d112crzy, I really do. It seems like everytime I try to help out a "buddy" I end up getting screwed. Thats why now everyone pays full price for any of my services. After I got burned a few times I finally woke up and realized that by helping these people all I was really doing was hurting myself. The funniest part is these same "buddies" will always be the first ones to talk sh*t about you the minute they have a problem with their cars because they have nothing to lose. Whereas a full paying customer will tend to hesitate to talk sh*t because they already spent money and they don't want to risk you getting mad at them and telling them to f-off for talking sh*t.

I have had three "buddies" (you know those guys that are a friend of a friend and want to get "hooked up" on the price) of mine in the past year blame my ecu and or tuning for their car not starting a few weeks after I tuned it. Everytime it was a bad main relay. But by the time they figured that out they had all opened their mouths and talked sh*t about me, blaming me for their problems. Then when they figured out that the main relay was the problem not a single one called to apoligize for being an a-hole.

EVERYONE PAYS FULL PRICE!!!