Definitely check for leaks to be sure. Just as an aside, what elevation do you live at? Some electronic gauges will zero themselves at the current barometric pressure so your boost reading remains consistent, whereas manual guages and some electronic gauges are calibrated specifically at sea...

Any exhaust leaks in the bay are a significant concern as the exhaust gasses can easily exceed 1000°F just cruising, which makes anything in the vacinity incredibly hot extremely fast. A small exhaust leak can lead to pretty crazy heat output, especially under boost.Not going to lie, it's...

The IAC and throttle body are unlikely to be your culprit for crap fuel economy, it's most likely boost leaks as Chrysler Kid noted. Your TSi is a '96 and therefore OBD2 compliant; pick up a Bluetooth (Android) or wifi (apple) OBD2 adapter on Amazon (I use/recommend VeePeak) and Torque Pro or...

Raising boost certainly increases your exhaust temps, but it shouldn't be too drastic. I've melted a couple fans after running for years without heat sheilds, and it was very frustrating. I found it hard to believe that they would melt as I had never had any sheilds, nor could I explain why they...

Alright I'm home, so info dump incoming! Assuming the issue is indeed the O2 sensor and therefore fuel trims:The long and short of what's happening is that the ECU is leaning out the fuel when it goes to closed loop due to insufficient/erroneous O2 input, but lets dig a bit deeper:What...

I'm also a 6-bolt swap into my '98; it did it on both motors until I fixed the 02. I can explain why the ECU does it if you'd like including why swapping ECUs won't change it. I never had any error codes at all for it. Too much to type from my phone to explain everything.If you're looking to...

My car used to do this after I originally purchased it, it was the O2 sensor not reading (never had a code for it either). Wide-band did the exact same thing you describe, right down to randomly going crazy lean while cruising. It idled fine, but never quite stoich so it took me forever to...

Hoping to keep this idea alive; I'd love to have meet in the next month or so! I feel like DSM's used to be plentiful around here, but now I can't find anyone in the area with one. I'm down for a meet just about anywhere in the state, so if anyone has anything planned out keep us posted!

There are 3/S forums but iirc he's permanently banned from the majority of them. They actually just got done flaming another one of his secondary accounts on 3Si about aweek ago... http://www.3si.org/forum/f1/met-guy-who-said-he-owned-100-carbon-fiber-3000gt-does-200mph-685202/Cool project...

Alright, finally got a chance to look through some of your logs here. Honestly, I'm no hardcore tuner, but I'll do what I can. First and foremost Ceddy's reference to using actual flow numbers is only for the H8 Stock ECU, the Evo ECU will always use a smaller number (long story, but that's how...

Alright, I got your message so I'll see what I can do for you :) Looking this all over it looks like you're obviously running rich like crazy (at least at idle anyway). I see that you've installed a fpr and your fuel pressure is correct, so you should already be set on that. So if you're running...

I've had the same idea in the past. When I got my Stealth the clutch booster was plugged off by the previous owner. The clutch felt extremely heavy, and I have no clue what clutch/pressure plate is actually in it. Reconnecting that booster made a world of difference with my clutch, and I'm not...

I used a calk-gun of black rtv on the carriers for my Stealth, and it stiffened them right up. Been rolling with it now for two years. Only downside was after they were solid I got some vibration from the drive-shaft, though this is common when you do this on the 3/S platform. I still get some...

I'm a bit confused as to what you're asking here, but I think you're wondering what ROM and definition you're supposed to use to tune your car? The short answer is that you use the Ceddymods 1v9C from the store page (it'll actually be 1v9Cb when you open it). Ceddy used the last ROM Mitsubishi...

Innovate is the best choice hands down! LC2/MTXL both have better refresh rates than AEM, play perfectly with Link and Flash ECUs, and support two analog outputs to run narrowband-sim and log via the ECU simultaneously (AEM only supports one). The MTXL can also have the display range adjusted to...

I take from this that you're running a 2g MAF with Evo9 settings? That's interesting...In any case, the top-right of the timing map is for situations in which you are producing high load at very low rpm. This can occur when you're cruising and happen to go up a hill without shifting, or if...

Short Version: Are they scaled right? If you used the numbers in Merlin's guide, probably not. Our ECU uses a different scaling/multiplier and our numbers should be similar to the injector's actual flow. Use your Wideband at WOT to get your scaling number, and LTFT low/mid to get the correct...

I live out by Saginaw and work there, but I'm in school at Big Rapids for the semester. I have the Stealth out for the summer, but the Talon will be back on the road once it gets close to snowing. I'm only home every other weekend to work my internship, but if you happen to have a get-together...

I'm not sure if you've already discovered the answers on your own, but I'll post up for future reference. You cannot connect under DSM; the ROM setup, and Evoscan XML afaik are not configured for use with Ceddymods. The DSM/3000GT/MUT over OBD2 is largely unfinished and designed to work with the...

This is not completely correct. The lower scaling values used in the Evo ROMs are a result of an incorrect scaling value, but at this point the Evo crowd is so used to it, that they won't change it. Ceddymods has the correct scaling values and you should use the injectors actual flow rate as...

IMHO I'd say to rock the stock box and reap the benefits: Cool air from the fender, heat-shielding from under-hood temps, less heat transfer from materials, bolt-on convenience, proper air-flow over the MAF, and more accurate data in the MAF Smoothing table within the ROM if you want to get...

A lot of people got rid of their flashable ECUs back when they were pretty much worthless; it's too bad really. As it stands, I'd say doing the Evo swap is the best way to go, but it's a significant amount of extra work. Not so much anything tough, just time consuming. The wire swap is easy, but...

I assume you've figured this out by now, but I'm guessing you're logging load and not 1Byte Load. The ECU does not stop at 160 load, but the standard load output is capped at 160 as that is its output bit limitation. For example, say you're really pushing 200 load, the ECU on the inside will...

Update! So it will suffice to say that I think my problem is pretty much solved! After receiving multiple PMs from other members who *gasp* have the exact same problem, I set out to try again to tune all this knock out. This time however, I have found success! Based on my work and research I...

Just to add for those who find this thread later on with the same question. I have an AEM UEGO that I log with Evoscan; I'm looking to upgrade to the Innovate MTX-L. I like my AEM and all, but I only got it instead of the LC1 because I didn't want to deal with the controller. Plus, the MTX-L...

Alright, sorry for the delay, I've been stuck at work and haven't had any time to poke at the car. I've got some good news for a change! I decided that since I didn't have knock on the DSM stock map I'd interpolate the values from its fuel table to see if it'd make a difference, and it did! The...

My bad, I guess I wasn't near as thorough as I thought, :ohdamn:. I previously did some logs and tried richening it up a bit as well as pulling a few degrees of timing from the area; it made no noticeable difference. I then decided to change Roms, to see if it would change anything; it did not...

As stated in the title I've swapped in the Evo 8 ECU w/MAF and done the initial setup on the Tephra V7 rom: injector scaling/latency, knock multiplier adjustment, fan correction, etc. I've been rolling waste-gate (~10psi) getting everything set: injectors hold within +/- .2 of target AFR at WOT...

You are 100% correct good Sir! As noted at the start of the post it was a quick copy/paste job of an old post of mine on 3Si from almost a year and a half ago. I wasn't as keen on all the details then and I'm still no guru now, so imperfections were sure to arise. Luckily for me I have the...

In its simplest form load = airflow. The more air flowing through the MAF, the larger the load number. It is mainly pulled from the MAF reading, and then tweaked slightly by some other variables. Here's a quick snipet of a post I made on 3Si concerning the fuel/timing tables:The ECU mainly...

Glad to see you got this all worked out; have fun tuning!

Your exhaust is basically pressurized when your waste-gate is open, so it's not likely you'll have back-flow to give you bad readings. You also don't have to have to worry about the exhaust that you're dumping. The exhaust you dump has the same general O2 content/density as what stays in the...

I meant that it worked fine for narrow-band simulating in response to Nate:I do not endorse AEM's wide-band; with other better options in the same price range there's no reason to get a sub-par gauge. I don't feel it's a bad unit, but reviews and testing have shown that it is not the best of...

I was using my AEM wideband as a narrow band for a while when my stocker crapped out. It works just fine. The downside is that it has only 1 extra output which I need for logging.If you run it as a narrowband simulater the gauge still shows wideband output and there's a rotary switch on the...

I have edited my previous post to reflect that the ECU was not pre-flashed for your car. I misread that, my bad. Please re-read my updated post above.The wideband is important indeed; I wouldn't suggest the swap without it. However, you're not the first to do so without one. Honestly you...

Judging by what you have going on here, there's a problem with your reflash port. If the car runs and drives, then your ECU install was likely a success; if Evoscan can read the MUT addresses and datalog then you're getting OBD2 functionality. If the OBD2 port works, you can datalog; it doesn't...

I did this swap a few weeks ago to coincide with my Evo 8 ECU swap, so I thought I would share and include a general how to. Sorry for the crappy pictures, I'm using my old cell phone because I couldn't find my real camera, but they should be good enough to get the job done.First off, why...

Thank you so much for the response! I don't want to come off as dense; I've read, and read, and read, but I just want to be 100% sure. I'll try to start out at ~18psi then and adjusting assuming I don't get any knock. I figured it'd be best to start around what Evos run stock, but I didn't want...

I just got done doing the Evo 8 ECU swap, along with my 16g and I'm ready to get my Talon back on the road. I already scaled my injectors/maf, changed the knock multiplier, etc. Question though; what are you all using as your initial boost setting after the swap? I looked through the thread and...

Alright, I did the Evo 8 swap while I drove my summer car for a few months; I'm getting my Talon back out and have started to roll my initial settings (mods in profile). I got the injector/maf scalings, adjusted the knock multiplier, etc, as per the guides in the massive original swap thread. I...

To set your timing properly, you'll need a timing light. Since you're '96 you can ground the timing set plug to lock the timing at 5* or you can use Evoscan's actuators to lock the timing at 5*. If you want to use Evoscan, start the car, let it come to operating temp, and then engage the...

As Synthetek said, mostly they let you turn things on and off to test them. The most useful, and probably the only two we really make use of are the BISS set, so you can properly adjust your base idle, and if you're like me and have done the 6-bolt swap, the 1G 5deg BTDC so you can properly set...

6-bolt swap with green top CAS here, no problems with Ceddymods before, and haven't had any issues with the Evo 8 swap either. Supposedly there's a slight latency issue with the optical sensors (Green Top CAS) vs the hall-effect (Black Top CAS and 2g sensor) that effects the timing especially at...

You're absolutely sure there's no vacuum leaks? That's sure what it sounds like: lean under vacuum, rich under boost, jacked up idle. Reset your base idle first off, that's a lot of air going around the BISS to idle at 2k. Check your IAC, make sure it's functioning properly (ohm it out, check...

I've been flashing my ECU for some time now, and I've been contemplating doing the swap to my Stealth. While browsing their forums I came across this thread:It dawns on me that we have a similar setup when doing the 6-bolt swap, but I've never seen anyone bring it up with flashable ECU's. I...

After converting over to the Evo8 ECU it dawns on me that I have 3 98/99 DSM ECU's hanging around that I've stockpiled over the last few years. With Ceddymods at a dead halt and the extensive capabilities of the Evo8 ECU I don't think I'll ever be switching back, so it's time for these to go...

There is basically no benefit to removing it short of having a cleaner intake and less chance for leaks (as Jimmy said). It's not open in any performance situations, you'll throw a CEL, it can cause you to fail emissions testing, and you may lose a little gas mileage. It is one less thing to...

Anymore word from Ceddy? My taxes ought to be back here in a week or so, and I'm trying to decide whether to stick with the 98/99 ECU or move up to the Evo 8 ECU. One way or another I'll get the features I'm after, but I'd prefer to pay another DSMer for their hard work. Let us know if you hear...

^^ I agree. I have the Prosport premium peak/hold green/white in my a-pillar and I love them. Luckily for you, you've chosen blue, so you'll have a lot more options, there's no love for green these days :cry: Not that I don't have my complaints with my gauges (seriously who doesn't; even with...