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Old 12-10-2014, 10:03 AM   #21
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Do not do that!^
Vodka is far too precious to be wasted.
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Old 12-10-2014, 11:19 AM   #22
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why not ask for a basemap that's actually correct for your car? and then maybe like installation instructions so you understand exactly how to sync the timing?

Because here what's going to happen: you'll never get it running right and do stupid things like unplugging the idle valve in an odd attempt to solving the problem. You wont ever tune it properly because you don't really seem to want to learn. You'll start blaming me and/or the ms3 for your issues. Your motor will fail and then in a final fit of frustration you'll end up pulling the MS3 and set it on fire using vodka as a fuel source.
Excuse me? I believe I've been humble this whole time and asking for direction and help. I figured this all out over the weekend and have been looking things up almost every free second trying to learn what I can. I would love a basemap and instructions on how to set everything up, because I havent had any. I'm not sure why you think I dont seem to want to learn, I can assure you the opposite is true. I thought it was clear thats why I came here? Im sure you get tired of noobs asking questions that are simple to you and I apologize if I came off as not wanting to learn but thats certainly not the case and I would very much appreciate instructions and any help your willing to give me. I generated base maps on the MS and have been working with those but I found out my problem is that I have a bad vacuum leak. I thought my MAP reading was normal from looking around online but after checking a second time I realized I was way off, I will inspect and fix it wherever it is. But Braineack, Im sure unplugging the Idle valve was a stupid and simple way to get rid of that noise, but how do I get it to stop causing the buzzing noise it was making? You said out of frequency before but I'm not quite sure what that means or how to fix it. Up to this point I've only ever adjusted it for setting timing and Idle with the stock ECU. In any case, any instructions, explanations or direction is much appreciated. Hope all you are having a good morning.
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Old 12-10-2014, 11:24 AM   #23
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Do not do that!^
Vodka is far too precious to be wasted.
Dont worry! It wouldnt make it out of my hand with any left in the container. I'm not that irresponsible :P
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Old 12-10-2014, 01:02 PM   #24
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I set it to 10 in Megasquirt after everything, but have not physically done it with the CAS...do I need to jump the ten+gnd jumpers and reset it to 10 again? Then I can play with spark advance in MS?
nonononono, that's not how you set timing with a MS. You'll never have to touch the diagnostic box or CAS again for timing.

MS2 and MS3s have a trigger wizard in the "tool" menu that'll tell you exactly what it's idling at. If you're having trouble getting a rock solid idle degree, select the area it's idling in and set it all to the same degree, somewhere in the 14-18 range. You then need to change the "ignition offset angle" so what you're reading with the timing light matches what the trigger wizard is displaying.

The brain, as usual, is right though. You need to start with a base map made for your ecu, and made for your engine. No more guessing should be happening.

Basic install:

1. physical install: plug in ecu, map line, wideband.
2. verify connectivity: make sure you're getting a reading from tps, map, ait, and afr.
3. load base map
4. set req_fuel for your engine/injectors.
5. set timing once started and warmed up
6. don't touch base map ignition.
7. autotune fuel map with street driving
8. go to dyno and tune ignition map for powah.
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Old 12-10-2014, 01:09 PM   #25
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Thank you Curly! As soon as I get a chance I'll figure that out. Tomorrow hopefully. For now I gotta find the vacuum leak. Right now my MAP is telling me I have 35-40kpa at idle. Thats like 10-12 inHg, and it SHOULD be at about 18-20 right?
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Old 12-10-2014, 01:21 PM   #26
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So I just was spraying carb cleaner at the top of the intake manifold in front of/above the injectors and tho no idle was changing at all, it did look like the carb cleaner was moving around and going down, like it was getting sucked in... Wierd the idle didnt change at all though. Ill buy new injector seals and an intake manifold gasket. Maybe all new vacuum hoses while Im at it lol. Im sure I'll be able to get it running well once I fix this stupid leak. Does this sound like Im on the right track?
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Old 12-13-2014, 05:26 PM   #27
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Well I am trying to follow all of your advice here, did a new intake manifold gasket and throttle body gasket and my vacuum leak is finally fixed! Car runs much better now. I was using the tune that came on the car from the guy I bought it from. I was told the best thing to do would be get a stock tune for my motor and put it on there...but if I get the one from DIYAutoTune it wants to change my firmware(to MS2) and all my sensor settings. Is there a way to only transfer the afr, ignition, and fuel VE tables without changing anything else? Or would that be unwise? I appreciate the direction I have gotten so far from you guys so thank you.
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Old 12-23-2014, 07:52 AM   #28
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You'll want to start afresh with a new stock complete basemap for your engine/year. Go through it methodically from the start, setting up timing and calibrating the senders for your engine. As much as anything else this starts to build familiarity with it. DON'T expect to use any of the previous owners map/tune on a different engine.

Maybe Braineack can supply one?

I'm not familiar with Brain's MS3 builds but I assume there would have been some wiring mods required to reconfigure the pinout for your year/engine from the previous owners 1.8?
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Old 12-23-2014, 11:28 AM   #29
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The previous owner had a 1.6 1991, I have a 90, no wiring mods were needed except a modified fuel harness for sequential injection!
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Old 12-23-2014, 11:29 AM   #30
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Originally Posted by JesseTheNoob View Post
The previous owner had a 1.6 1991, I have a 90, no wiring mods were needed except a modified fuel harness for sequential injection!
And your megasquirt is setup for sequential fuel right?
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Old 12-23-2014, 11:35 AM   #31
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...the guy I got it from had 1.8 so I think 265cc?...
?
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Old 12-23-2014, 11:37 AM   #32
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And your megasquirt is setup for sequential fuel right?
Yes definately. I got it with the modified fuel harness, and temp sensor with a prewired plug to the old AFM connector. I added in a wideband the same day.

What I cant figure out is why my vacuum seems so low, what is the NORMAL Kpa for a 1.6 motor? It seems like I have a vacuum leak even though I have replaced everything and cant find it anywhere. On steady throttle it seems to go lean a bit, as well as on starts or light throttle adds. Ive been messing with the accel enrichment a bit and it helps but I think maybe the Vtps I got is iffy. It doesnt change percentage linearly with the throttle and doesnt detect LIGHT throttle, which then is causing it to lean out. Idk if its a tps and accell enrichment issue or a vacuum issue but I'm figuring it out.
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Old 12-23-2014, 11:38 AM   #33
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?
We were talking about injector sizes. He had 1.8 injectors. Maybe I wasnt clear. I changed the settings to the stock 230cc.
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Old 12-23-2014, 11:39 AM   #34
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who'd you buy the MS from? I'm pretty sure I've only made (2) MS for a 1.6L seq. fuel and that was my personal ms3x and ms3-pro.
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Old 12-23-2014, 11:42 AM   #35
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We were talking about injector sizes. He had 1.8 injectors. Maybe I wasnt clear. I changed the settings to the stock 230cc.
Ah gotcha,no worries.

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Originally Posted by JesseTheNoob View Post
Yes definately. I got it with the modified fuel harness, and temp sensor with a prewired plug to the old AFM connector. I added in a wideband the same day.
I believe aidandj is referring to the Megasquirt Map rather than the hardware.

On an MS2 the settings look a bit like this: DIYPNP Sequential Upgrade - DIYAutoTune.com
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Old 12-23-2014, 11:51 AM   #36
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who'd you buy the MS from? I'm pretty sure I've only made (2) MS for a 1.6L seq. fuel and that was my personal ms3x and ms3-pro.
Hey Brain I bought it from user Pmorera on this site. I remember you posted in the listing saying the price was ridiculous or something. Do you remember building it?
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Old 12-23-2014, 12:24 PM   #37
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yeah i remember. he sold it for really cheap.
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Old 12-23-2014, 12:27 PM   #38
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Ah gotcha,no worries.



I believe aidandj is referring to the Megasquirt Map rather than the hardware.

On an MS2 the settings look a bit like this: DIYPNP Sequential Upgrade - DIYAutoTune.com
I also meant the internal MS wiring as well.
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Old 12-23-2014, 12:54 PM   #39
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yeah i remember. he sold it for really cheap.
So was this your personal ms3x at one point then?
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Old 12-23-2014, 12:55 PM   #40
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I also meant the internal MS wiring as well.
I havent opened up the MS at all
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