Originally Posted by sotaku
Sadly I shipped the bung off with the LC1 to Innovate so I'll have to wait for that one to come back before I attempt mangling the thing with JB Weld or worse, complete noob welding skills. Ah well.
edit: Here's a picture of the WBO2 bung on my downpipe. It's an odd perspective, but this is a few inches upstream of the cat. Now pictured is how the cable is routed. The connection point where the sensor cable plugs into the gauge cable is affixed with tie-wraps to a point on the top of the transmission. The cable then goes up the shifter boot and to the gauge, which is in one of the center eyeball vents. https://www.miataturbo.net/forum/att...1&d=1159508417 |
Originally Posted by sotaku
(Post 239322)
This is some excellent information. When I get mine back I think I'll try doing this and see how I fair. Thanks a ton for chiming in.
I guess I hadn't thought of it, I could have called you guys when I had problems since I bought it from you, eh? Doh! Now I know. From all of the replies so far I'm thinking I just had my install jacked on the LC-1. I'm going to give it another go when it comes back before writing it off. It was just unbelievably frustrating to have no trust in such an important piece of equipment. Anything we can do just let us know... |
Originally Posted by Joe Perez
(Post 239360)
Find an independent muffler shop in your area. Not one of the chain stores such as Midas, but a simple mom-and-pop sort of place like "Bob's Muffler". Bring your downpipe in to them (off the car) with the location for the bung marked. Generally, at this sort of shop they will be glad to provide you with a bung and install it for very little money. When I bought my Tony pipe a while back, I had just such a local shop install three bungs (NB, WB, and EGT) for about $25- I supplied the 1/8" EGT bung and one of the two O2 bungs and pre-drilled the holes for those two, they supplied the other O2 bung and drilled a hole for it in the location I marked with a sharpie.
edit: Here's a picture of the WBO2 bung on my downpipe. It's an odd perspective, but this is a few inches upstream of the cat. Now pictured is how the cable is routed. The connection point where the sensor cable plugs into the gauge cable is affixed with tie-wraps to a point on the top of the transmission. The cable then goes up the shifter boot and to the gauge, which is in one of the center eyeball vents. https://www.miataturbo.net/forum/att...1&d=1159508417 |
I agree with everything that Foundsoul is saying, I had constant LC1 problems to the point where I wanted to burn it and get an AEM. But after a proper installation, with a proper +12v and a proper ground, all problems disappeared and it has been trouble free ever since.
Its extremely picky to power and ground. You dont need fat grounds, or fat power for it, just has to be tapped at the right places. |
Originally Posted by PAT!
(Post 239368)
I can't recall the size but you can find nuts the correct size and thread pitch to use as O2 bungs at a hardware store.
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Originally Posted by Saml01
(Post 239379)
I agree with everything that Foundsoul is saying, I had constant LC1 problems to the point where I wanted to burn it and get an AEM. But after a proper installation, with a proper +12v and a proper ground, all problems disappeared and it has been trouble free ever since.
Its extremely picky to power and ground. You dont need fat grounds, or fat power for it, just has to be tapped at the right places. |
Originally Posted by FoundSoul
(Post 239388)
I may have overstated with the word 'fat' when referring to grounding, I think I used an 18-20ga wire and that's plenty. Same for 12v. Location, Location, Location ;).
The power has to be tapped off a switched 12v, specifically one that is hot in run and crank, not one that turns on and off like radio and the blue plug under the hood when transitioning between run and crank(on off on causes errors). It also has to be a clean power source that means either the MAF, ECU or etc. As for the ground. All of its grounds have to be grounded to a single point, that includes a Megasquirt and Gauge ground and that has to be then grounded to the engine. Once I made all these things true, all problems went away. The only time I had to perform a free air calibration in like 3 months was after I changed where the gauge got its power. Yea, that through it off too. After the calibration, again no problems ever. |
Originally Posted by Joe Perez
(Post 239380)
M18 x 1.5
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Originally Posted by Saml01
(Post 239398)
I might as well just type it again, in case someone finds this thread and is having LC1 problems.
The power has to be tapped off a switched 12v, specifically one that is hot in run and crank, not one that turns on and off like radio and the blue plug under the hood when transitioning between run and crank(on off on causes errors). It also has to be a clean power source that means either the MAF, ECU or etc. As for the ground. All of its grounds have to be grounded to a single point, that includes a Megasquirt and Gauge ground and that has to be then grounded to the engine.. |
I like the fuel pump relay-- easily tapped on the bottom of the fuse box at the pass side of the engine compartment. Just do it cleanly...
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Jerry,
Where do you locate the LC-1? I have mine in the center console and run the cable for the 02 sensor through the shifter hole. I picked up the power and ground from the same place I used for my link. I spliced off the main ECU harness. Can you suggest a better place? |
After being exposed to both the AEM and Innovate products, IMO Innovate simply kicks the snot out of the AEM. The Innovate simply does everything better and is more useful. So what if it costs $100 more; it's worth it. (UEGO vs XD/LC package). Going to the UEGO from the LC is a backwards move.
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you guys with all the LC-1 troubles astonish me....
|
Originally Posted by Joe Perez
(Post 239208)
1: The AEM has only one output, whereas the LC1 has two. This is of absolutely no consequence with a MS.
We tried to re-write the code in MS to switch voltage in favor of AFR, but fucking Vista wouldn't let us save the changes. |
Originally Posted by Ben
(Post 239473)
You say that, but when you run the LC with MS, you get AFR target charts in actual AFR. With the UEGO, the target tables are all in Voltage. Not a problem you say? Well, you'd just need an accurate table that shows AFR vs Voltage out. Problem is, the only tables I could find were just plain wrong.
The howto was somewhere in this forum. Lemme search around and see if I can find it... edit Here we are. It was a change to both msns-extra.ini and my MSQ file. The local version: https://www.miataturbo.net/forum/sho...0&postcount=12 and the original inspiration: http://forums.plastikracing.net/view...?p=52097#52097 |
Originally Posted by wes65
(Post 239443)
So, what would you recommend for a 12v? I am using the blue clip right now...
Originally Posted by Braineack
(Post 239471)
you guys with all the LC-1 troubles astonish me....
Originally Posted by jayc72
(Post 239467)
Jerry,
Where do you locate the LC-1? I have mine in the center console and run the cable for the 02 sensor through the shifter hole. I picked up the power and ground from the same place I used for my link. I spliced off the main ECU harness. Can you suggest a better place? |
Originally Posted by Saml01
(Post 239486)
Cmon, have a little sympathy. Its easy when shit works right from the first time, but when it doesnt you start to wonder wtf is going. You would never suspect something simple as power and ground to be the culprit.
2.3 Electrical Grounding Concerns The electrical environment inside a car provides unique challenges, combining high voltages and currents, low-voltage signals, convoluted signal paths, and variable conditions (i.e., fans turning on and off, or starter cranking). When using precision electronics, it is important for ALL electronics to share a common ground. Remember that “Ground” is more than just the return path for any circuit- it is also the reference against which any voltage is measured. Since it is not always practical to ground every device to the exact same location, here are some tips on grounding: 1. The BEST grounding scheme is all grounds (i.e., ECU, Gauges, LC1 heater, LC1 system, etc.) SOLDERED into a single lug and bolted to the engine block. 2. The next best is all grounds attached to the same source, as close as possible, but on separate lugs. This is because even the corrosion between lugs can create ground offset and noise. Incidentally, this is why many ECUs have separate ground wires for injectors vs. ECU system ground- separating high voltages and low voltages reduces noise. 3. Grounding to the engine block is usually better than grounding to the frame. 4. Grounding a gauge to the radio is usually bad- ground offset can vary with volume. 5. Grounding to an ECU housing is generally not optimal- housings are strapped to the frame for shielding, but not necessarily grounded. 6. One of the WORST things to do is to ground most of your electronics to one place (i.e. the engine block), but ground one device somewhere else (i.e., the frame). Not only can this result in ground offsets, it can also create a “path of least resistance” for high currents THROUGH a low-current device. This can result in melted wires and vaporized diodes, when, for example, starter currents flow through gauges. |
Originally Posted by Joe Perez
(Post 239485)
The howto was somewhere in this forum. Lemme search around and see if I can find it...
edit Here we are. It was a change to both msns-extra.ini and my MSQ file. The local version: https://www.miataturbo.net/forum/sho...0&postcount=12 and the original inspiration: http://forums.plastikracing.net/view...?p=52097#52097 |
vista wont let you save things in the program files folder....is lame!
copy the files somewhere else, then open them up and save, then copy and paste them over the files you wanna change. that shoudl work. |
Notepad has a bug in it under Vista (SP1 might fix it?). It doesn't appear to be playing nice with UAC even if you are admin and have access to the file system. It's like Notepad doesn't recognize that you have"authenticated" and ignores the UAC permission. Goofy, but it's Microsoft right?
Fix, turn off UAC until they get their shit together. |
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