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Old 09-23-2007, 12:28 PM   #1
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Default No spark after MAF delete???

Last night I finally got my car ready (1994) to start and it will not. I did the maf delete, added the IAT, and installed an LC-1. When I put a plug in one of the wires and hold it against the top of the engine it will not spark (do I need to make ground contact somewhere else??).

When I downloaded the new without maf firmware I did unplug the coils. The only thing that I am not sure I did right is load the base map before plugging it back in. Does loading the base map just mean opening megatune and choosing without maf?? Or do I have to download it somehow?

I did feel the coils after cranking a little and the metal bracket around them was getting fairly warm. The tach on megatune still reads when I am cranking though and the resistance in the coils is still the same, at 11.5k ohms.

What should I try, and how do I make sure that the megasquirt has the base map loaded??
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Old 09-23-2007, 01:17 PM   #2
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Here is some more info. When I went to download the firmware it would not work so I coppied the "src" directory from the "with maf" to the "without maf folder, then it woked. Could this cause any problems?? Jerry??

Also when I went to start the car, the glow in the megasquirt box looked dim. Then I restarted my laptop and turned the car of and back on, I think, then it looked bright. When it was dim was at the same time as the coils getting warm. Any thoughts??
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Old 09-23-2007, 01:45 PM   #3
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did you happen to install the new firmware without removing hte coil pack wires? If not you could have shorted them out.
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Old 09-23-2007, 01:48 PM   #4
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I did remove the one plug just to the left of the coils while downloading the no maf firmware, but I may have plugged it in before the base map got loaded?? I am not sure what step loads the base map officially?
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Old 09-23-2007, 02:35 PM   #5
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Opening MegaTune and choosing the 'without_afm' project is just opening MegaTune properly configured for your car. If you powered the car on without loading the base map (as it sounds like) then you ignitors are probably cooked unfortunately. If you've not had them on long (at all, like less than 30 seconds) they may be OK, but longer than a minute and I bet they're toast.

Here are the sections of the MSPNP MM9495 manual on this:

Quote:
Once the firmware download is complete, you MUST reload the base map, or your updated map which was based on the base map, before reconnecting your ignitor. The .msq file for the base map will be located in the same folder as the firmware update above. Load the base map .msq file, and then you can reconnect your ignitor.
--

And then there's a primer on what .msq MegaTune maps are as well since we understand this will be new to many people:

Quote:
Working with MSQ files (MegaTune Maps)

MegaTune stores the information from MegaSquirt in MSQ files. The MSQ file contains all of the adjustments and settings needed to run MegaSquirt on a particular engine. These let you back up your tuning or compare your settings with other MegaSquirt users.

The MSPNP CD comes with a base MSQ file. We’ve tested this one out on a stock Miata, and it should get most cars with basic bolt-ons to start up and run too. Even if your car is stock, you will want to fine-tune it to your particular engine, as every car varies just a bit. If you’ve added any significant mods, you will definitely want to do some good tuning before really pushing your engine to its limits. But if you find yourself getting lost and having trouble with your tuning, you can go back to this default tune to make things work again as a baseline.

The base map is intended as just that however: a ‘base’ map. It was tuned on 93 octane fuel, and in theory is somewhat conservative. Fuel is different from state to state, and pump to pump, so what is in theory conservative here may be aggressive on your fuel. RUN THE BEST PUMP FUEL AVAILABLE, AND GET IT TUNED IN, AND KEEP RUNNING THAT FUEL. On a stock car EXACTLY like ours, in EXACTLY the same condition, this map should make similar power to stock, maybe a bit better—though we recommend only running premium fuel, and getting the system properly tuned for your car as soon as possible. With this EMS you have full control of all aspects of engine management on your vehicle. You will get excellent results when properly tuned. Though giving you that level of control means you also have the power to melt down your engine in a hurry if you don’t tune the engine properly. The power to tune is just that, very powerful… Do it right the first time, and if you’re not confident in your ability to do so get a professional tuner to assist you on a load-bearing steady state dyno where the maps can be properly tuned in for your car. Once that’s done by a qualified tuner, you can rest assured that your engine is safely making all of the power that it can make.

If you go to File -> Open in MegaTune, you can open a MSQ file and it will load it into your MegaSquirt. This will overwrite all the settings you currently have saved in the MegaSquirt’s memory. MegaTune will confirm that you want to do this. If you see a dialog box appear with a warning that there are warnings when you open the MSQ file, you should cancel this until you can investigate further. Feel free to contact our support team and we'll help you quickly determine what may be causing the warning.... or look in your Audit.log file (MegaTune folder) and you can likely determine if it's anything to be concerned about.

If you want to open a file just to examine it, the safest way is to open it with the MSPNP disconnected. Then you can go to the File menu and select Offline. MegaTune will still prompt you if you want to burn the values into the controller. You should tell it No. You can then examine the settings in the MSQ file without loading it onto your MegaSquirt.

The Save command under the File menu will save your settings. MegaTune will automatically suggest a name based on the time you have saved the file, or you can specify your own file names.

You can share MSQ files with other MegaSquirt users, both ones using the MSPNP and standard MegaSquirts. There are a few words of caution when sharing MSQ files. First, you will need to make sure it is from the same firmware release, or at least a compatible one that uses an identical MSQ format. You will see a warning if you try to load one from an incompatible firmware version; don’t ignore this warning.

The other potential source of trouble when sharing MSQ files is that a different owner’s MSQ file may not be right for your engine. It may be tuned for an engine with different modifications, or may have a few mistakes in it's tuning. Loading an untested/untuned MSQ file just before a race and going out for a few laps without tuning it can be a recipe for disaster.
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Old 09-23-2007, 05:59 PM   #6
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Anyone in the bay area have a pair of coils I could buy or try??? I have only a tach readout on megatune and not on the dashboard tachometer. I am pretty sure that I did toast the coils, and it really pisses me off because I tried really hard to do it right but did not know that I had to go.....file -> open!!?? I just thought I had to load megatune with the no maf selection at startup!!!!!!!!!

I am trying to make a track day on oct. 3rd and really need to get the car running so I can tune it. Even some guy on craigslist wants $125 for a used coil.

ANY SUGGESTIONS????
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Old 09-24-2007, 11:05 AM   #7
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I'm checking with my local parts guy for you...
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Old 09-24-2007, 11:50 AM   #8
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Quote:
Originally Posted by FoundSoul View Post
I'm checking with my local parts guy for you...
Just got a reply and all he has are 1.6 coils right now... have you checked Craigslist?
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Old 09-24-2007, 12:04 PM   #9
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yeah, $125....I am going to call the junkyard today. Thanks though.

So to clarify, before I plug the new coils in I need to have opened megatune and done a "file -> open -> .msq" ? That is all I need to do in order to not burn up the coils??

I do know to also never download firmware with it plugged in. Maybe list the common mistakes people make so I can be sure.

Also, add the file -> open to section 4 of the manual to make it more clear.....it would have saved me.
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Old 09-24-2007, 02:41 PM   #10
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Quote:
Originally Posted by kylelind View Post
yeah, $125....I am going to call the junkyard today. Thanks though.

So to clarify, before I plug the new coils in I need to have opened megatune and done a "file -> open -> .msq" ? That is all I need to do in order to not burn up the coils??

I do know to also never download firmware with it plugged in. Maybe list the common mistakes people make so I can be sure.

Also, add the file -> open to section 4 of the manual to make it more clear.....it would have saved me.
Yes, you need to open the MSQ before hooking up the coils. I'll change the manual ASAP.
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Old 09-24-2007, 03:05 PM   #11
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Thanks for clearing that up in the manual Matt- it already says to open up the MSQ, but it didn't get specific about it. Maybe a link to the 'working with .msq files section' would be a good idea from that section. And a mention of use 'File>Open and select the base map .msq file'. Also powering off/on the unit after loading the .msq

It's tough to write technical documentation that works for everyone... if you add all the notes everyone wants added you end up with a document so long that nobody will read it
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Old 09-24-2007, 04:18 PM   #12
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Goto rosenthal Mazdas/Finishline Performance website and order coils form there. They are about 115$ for new ones. Or send a message to lazzer he has some 94 oens he dosent use. Or go cops now.
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Old 09-24-2007, 06:21 PM   #13
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should the tachometer read something when cranking??
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Old 09-24-2007, 06:52 PM   #14
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Yes... both the dash tach and the MegaTune tach should read when cranking
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Old 09-24-2007, 08:03 PM   #15
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Toast!!
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Old 09-25-2007, 03:03 AM   #16
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I put new coils in today and it runs like a champ......ahhhh
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Old 09-25-2007, 10:47 AM   #17
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excellent
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