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Old 07-20-2010, 07:24 PM   #1
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Default problems getting car started on the MS

I installed the megasquirt in the miata last weekend. i had braineack build me an MSII, which he sent to me with a map for my setup (bone stock 1.8).

i installed the AFM delete, ran a vacuum line off the back of the IM, and plugged in the stock harness.

I thought that it was going to just start right up and idle, but i was wrong. it cranked but didnt fire. So i hooked it up to the laptop and tunerstudio wouldnt connect because of mismatched firmware. i then upgraded the MS to 3.03 firmware and flashed the DIYPNP startup map.

car still wont start, i pulled this log of me cranking...

http://www.megaupload.com/?d=EBEUEUQE


after this i hooked it back up to the stock ECU, and it still wont start. it barely turns over, and makes some strange noises when i crank it.


sorry for the long post, but i really dont know where to go from here.
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Old 07-20-2010, 08:19 PM   #2
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did you disconnect the coilpacks\igintor before flashing the MS? Also did you reconnect the AFM when testing the stock ecu?
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Old 07-20-2010, 08:23 PM   #3
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Quote:
Originally Posted by Techsalvager View Post
did you disconnect the coilpacks\igintor before flashing the MS? Also did you reconnect the AFM when testing the stock ecu?
i did all the MS flashing on a stim.

i forgot to hook the AFM back up after i reconnected the stock ECU, cranked it over once. it popped, then i reconnected the AFM, still no start.
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Old 07-20-2010, 08:26 PM   #4
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i checked for spark the other day, i'd get one nice big spark the first time my wife turned the key, then nothing until she turned the ignition off and back on again on cyl 1 & 4. nothing on 2 & 3...


i found a few threads via search where others had this same issue. one guy's MS wasnt connected securely, and the other never posted if he got it fixed or not.
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Old 07-20-2010, 08:27 PM   #5
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i'm thinking about burning my garage down and collecting the insurance money, but i'd lose my ***. plus i think thats illegal
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Old 07-20-2010, 08:30 PM   #6
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got spare coil packs to test with?
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Old 07-20-2010, 08:35 PM   #7
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Quote:
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got spare coil packs to test with?
i dont know how the coils would be blown. it ran before i started dicking with the MS... but no i dont have any spare coils
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Old 07-20-2010, 08:36 PM   #8
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swap plug wires around and see if now the other two get spark and hte other don't
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Old 07-20-2010, 08:40 PM   #9
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Quote:
Originally Posted by Techsalvager View Post
swap plug wires around and see if now the other two get spark and hte other don't

wires are brand new. i already tried switching the firing order....
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Old 07-20-2010, 08:52 PM   #10
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Quote:
Originally Posted by DrewLGT View Post
wires are brand new. i already tried switching the firing order....
what do wires being brand new have to do with this?
and what happened when you switched firing order? did only the other two work?
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Old 07-20-2010, 08:57 PM   #11
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Quote:
Originally Posted by Techsalvager View Post
what do wires being brand new have to do with this?
and what happened when you switched firing order? did only the other two work?


i thought you were implying i wasnt getting a spark due to bad wires...



i get spark (sort of) from one coil, not the other
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Old 07-20-2010, 09:17 PM   #12
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something looks really off on the log, can you upload the msq you are using?

was this a diypnp or v3.0 msII I cant remember?
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Old 07-20-2010, 09:21 PM   #13
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Quote:
Originally Posted by Braineack View Post
something looks really off on the log, can you upload the msq you are using?

was this a diypnp or v3.0 msII I cant remember?

it's a v3 MSII

i downloaded the msq from here:

http://www.diyautotune.com/diypnp/ap...5-18bp-mt.html

i used the .msq tuned for the stock injectors

edit: i apparantly downloaded the .msq for the 1.6. would that cause the car to not start?
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Old 07-20-2010, 09:35 PM   #14
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minus injector sizing and outputs like fan and a/c relays, it's all more or less the same.
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Old 07-20-2010, 09:38 PM   #15
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Quote:
Originally Posted by Braineack View Post
minus injector sizing and outputs like fan and a/c relays, it's all more or less the same.
i'm using the injectors from my 1.6...
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Old 07-20-2010, 10:25 PM   #16
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So.... 1.6 injectors are smaller, would you not adjust cranking pw's accordingly?
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Old 07-21-2010, 10:07 AM   #17
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You'll first need to get with Scott and see if your basemap is configured for how he built your hardware. There are critical settings that may not transfer over correctly from our DIYPNP basemap to your MS2. One example would be the setting that determines how the coils charge and fire.

You have a stim right? Do you see proper operation on the stim?
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Old 07-21-2010, 11:00 AM   #18
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Quote:
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You'll first need to get with Scott and see if your basemap is configured for how he built your hardware. There are critical settings that may not transfer over correctly from our DIYPNP basemap to your MS2. One example would be the setting that determines how the coils charge and fire.

You have a stim right? Do you see proper operation on the stim?


I don't see any RPM on the stim...
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Old 07-21-2010, 12:21 PM   #19
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If you don't have any reading on the stim, then you're probably not going to get any reading on the car either. The first thing I'd like you to do is get a couple of clear pics showing how the stim is set up, as you'll need to get the pullups, tach mode dip switches, and 2nd trigger input all situated correctly. We'll also need to know which pin on the MegaSquirt is set up for 2nd trigger input.

Also, what I'd like you to do is power up the MegaSquirt on the Stim, open up TunerStudio and go to Communications > Mini Terminal, then turn the MegaSquirt off and on again. Do this and let me know if Mini Terminal reports anything.
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Old 07-21-2010, 08:02 PM   #20
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i just brought the MS in and hooked it up to the stim to turn it on and off via mini terminal, and it was freaking out. rpm's were fluctuating between 1 and 46 thousand. everything else seemed to work normally.


im looking for my camera to take some good pics of the stim right now....
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