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Old 02-18-2007, 08:13 PM   #1
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Default Plug and prayed, dead in the water.

I get nothing. I finally get my IAT welded into my crossover pipe near the TB and decided to try and start the car with my 'plug and play' MS setup from Kingofl337. Nothing. No lights lit on the MS unit either. I am sure it is something simple but it has reminded me of what I might be getting into. I started this mainly to fix my midrange power but I am really having second thoughts. I might just trade it for a better FMU and a bipes. I know I am a loser but when it comes down to it, I am hurting for money and I just want a reliable 6psi until I can go crazy with fmic, rear end, clutch, etc.. Any ideas on what to check? I am already frustrated and I haven't even started!
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Old 02-18-2007, 08:20 PM   #2
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hmm is it turning over. Is the FP turning on? do you have spark?
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Old 02-18-2007, 08:20 PM   #3
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i take it you have already gave kingofl337 a call?? and got no answer, e-mailed and got no reply. I would unplug everything, and plug it back in the way you had it and make sure everything is good... then if that works, plug the MS back in and see what happens..
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Old 02-18-2007, 08:26 PM   #4
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if you go step by step and figure out what you have then you can figure out what you need and this is most likely gonna be your problem one system at a time. do you have the sensors set up right on MS tunning software? do you have a base map laoded?
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Old 02-18-2007, 09:06 PM   #5
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Originally Posted by magnamx-5 View Post
hmm is it turning over. Is the FP turning on? do you have spark?
The car turns over fine, but I didn't listen for the fuel pump. The fact that none of the LEDs on the MS came on so I figured I wasn't going to have any luck. Kingofl337 said it had a base map but I can't verify it because I can't connect to it. The car runs fine when I switch it back to stock ecu fuel and spark. I would try one at a time but I really don't think either will work.
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Old 02-18-2007, 09:22 PM   #6
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sounds like the MS isnt getting power, if you cant connect to it..
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Old 02-18-2007, 09:22 PM   #7
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are you using the serial connector or a usb? or serial to usb adapter?
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Old 02-18-2007, 09:28 PM   #8
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I bought the USB to serial from diyautotune but my old laptop didn't connect either and I thought it was a problem with the laptop. The main reason was because I couldn't connect to the wideband either. Still working on that one also. Funny, I never had problems wiring my 89 turbo rx7.
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Old 02-18-2007, 10:01 PM   #9
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sounds like the MS isnt getting power, if you cant connect to it..
X 2, time to get out the ole' multimeter.
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Old 02-18-2007, 10:23 PM   #10
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I really hope its obvious or its getting sold. I was hoping to not have to take it apart, but I guess it was inevitable.
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Old 02-18-2007, 11:40 PM   #11
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Originally Posted by rotaryjunky View Post
The car turns over fine, but I didn't listen for the fuel pump. The fact that none of the LEDs on the MS came on so I figured I wasn't going to have any luck.

LEDs don't work with the spark mods, no worries there.
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Old 02-18-2007, 11:45 PM   #12
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So what purpose do the LEDs serve?
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Old 02-19-2007, 02:23 AM   #13
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So what purpose do the LEDs serve?
In our setups, they serve no purpose at all.

In a 'regular' setup they will do 'squirt', 'warmup' and 'acceleration'.

Do you have MegaTune installed on your computer? That question can be easily answered by looking at Basic Settings, then Codebase and Outputs Function

As to your problem of not starting, have you looked at the .msq that was loaded onto the MegaSquirt? There can be about 20 different reasons why it won't start just because of slightly incorrect variables.

If your first instincts are to sell your MegaSquirt then I would strongly suggest that you run with those feelings. The MegaSquirt is a DIY ECU, not a cheap ECU. If you bought it because it is cheap and can't DIY to save yourself then cut your losses, sell it, and buy a 'customer' setup like a FM Link. Running with a DIY ECU that you don't understand is a recipe for failure/disaster.

Last edited by Aussie Driver; 02-19-2007 at 03:45 AM.
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Old 02-19-2007, 05:37 PM   #14
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Originally Posted by Aussie Driver View Post
In our setups, they serve no purpose at all.

In a 'regular' setup they will do 'squirt', 'warmup' and 'acceleration'.

Do you have MegaTune installed on your computer? That question can be easily answered by looking at Basic Settings, then Codebase and Outputs Function

As to your problem of not starting, have you looked at the .msq that was loaded onto the MegaSquirt? There can be about 20 different reasons why it won't start just because of slightly incorrect variables.

If your first instincts are to sell your MegaSquirt then I would strongly suggest that you run with those feelings. The MegaSquirt is a DIY ECU, not a cheap ECU. If you bought it because it is cheap and can't DIY to save yourself then cut your losses, sell it, and buy a 'customer' setup like a FM Link. Running with a DIY ECU that you don't understand is a recipe for failure/disaster.
Very well said. I can definitely do this, and I really wanted to make myself learn ecu tuning, but can I really justify the time I will spend when I can't afford more than 6/7 psi anyways? Who wants a vacation in Traverse city, michigan?

I learned VB and I used all of that knowledge to make some stupid math games for my class. Now, I've forgotten most of it.

And I have trouble committing to anything car related.
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Old 02-19-2007, 11:33 PM   #15
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Well, for some reason my wideband connected and is working fine with the car running off of the stock ecu. Now I can't wait to datalog a run with the ole fmu. Stupid snow.

Unfortunately, I still can't connect to the MS. Fuel pump is running but the car wont start with either fuel or spark switched on. I still don't know what the map looks like because I can't see it. It's not the com port because the wideband works. I am sure it has a base map. I will take it apart and take some pictures when I can.
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Old 02-19-2007, 11:55 PM   #16
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sounds more like a wiring problem or communication problem if Megatune is completely dead. messed up board mods would sitll show something.
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Old 02-20-2007, 12:17 AM   #17
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http://i70.photobucket.com/albums/i1...y/DSC00801.jpg
I will get more pictures of the inside soon.
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Old 02-20-2007, 01:42 PM   #18
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Who wants a vacation in Traverse city, michigan?
I was gonna PM you and see where you live in Northern Michigan. My wife grew up in Rapid City/Kalkaska.

I'll be up there for Easter, maybe. I would be more than happy to lend a hand if you havent figured it out by then.
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Old 02-20-2007, 06:26 PM   #19
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Unfortunately, I still can't connect to the MS. Fuel pump is running but the car wont start with either fuel or spark switched on. I still don't know what the map looks like because I can't see it.
It would be a hugely bad idea to try and start the car with no knowledge of what any of the settings are. The dwell could be too large and fry the ignitor, injector settings could be wacky, who knows.
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Old 02-20-2007, 08:22 PM   #20
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It would be a hugely bad idea to try and start the car with no knowledge of what any of the settings are. The dwell could be too large and fry the ignitor, injector settings could be wacky, who knows.
The base map is for a 1.6 miata, I just don't know all of the specifics until I can look at it. Kingof1337 made it for me in the early days.
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