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. |
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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Originally Posted by Techsalvager
(Post 604358)
did you disconnect the coilpacks\igintor before flashing the MS? Also did you reconnect the AFM when testing the stock ecu?
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. |
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. |
i'm thinking about burning my garage down and collecting the insurance money, but i'd lose my ass. plus i think thats illegal
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got spare coil packs to test with?
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Originally Posted by Techsalvager
(Post 604365)
got spare coil packs to test with?
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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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Originally Posted by Techsalvager
(Post 604367)
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.... |
Originally Posted by DrewLGT
(Post 604368)
wires are brand new. i already tried switching the firing order....
and what happened when you switched firing order? did only the other two work? |
Originally Posted by Techsalvager
(Post 604372)
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 |
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? |
Originally Posted by Braineack
(Post 604384)
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? |
minus injector sizing and outputs like fan and a/c relays, it's all more or less the same.
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Originally Posted by Braineack
(Post 604391)
minus injector sizing and outputs like fan and a/c relays, it's all more or less the same.
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So.... 1.6 injectors are smaller, would you not adjust cranking pw's accordingly?
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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? |
Originally Posted by Ben
(Post 604586)
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... |
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. |
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.... |
finally got the pics of the stim uploaded. i borrowed it from a friend who built it for his MS1 that's running his starlett. i was only using it to power my MS so i didnt have to sit outside while i flashed new firmware, and got the laptop talking to tunerstudio....
pics are huge, sorry... http://www.newcelica.org/photopost/d.../DSC002311.JPG http://www.newcelica.org/photopost/d.../DSC002302.JPG http://www.newcelica.org/photopost/d.../DSC002271.JPG |
little update. i got the MS back from Scott a few weeks ago, he said he had reversed the spark outputs, and there was another issue with the fan control.
i finally got a chance to work on it again yesterday. I hooked the MS back up, and hooked up the new coils that i bought. The car still wont start, although it does crank better. Tuner studio still shows intermittent RPM, same as before i sent it to Scott. I swapped the stock ECU back in, and the car fired and ran on the first try. I really need some help here. Any ideas? |
bump
anyone? |
adapter harness? I"d check the wiring for the CAS pickup on the harness
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Originally Posted by Techsalvager
(Post 622557)
adapter harness? I"d check the wiring for the CAS pickup on the harness
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cleaned up the grounds today, they looked pretty good from the start.... i also realized i sent the harness back to :brain: with the MS, so unless he chimes in and says he didnt check it i'm going to assume its fine.
no change. still shows rpm's, acknowledges i'm cranking, then drops to 0rpm, no cranking. i'm considering giving up, installing the stock ecu and running the car NA for the rest of the summer. it's literally been down months because of this MS issue |
anyone?
help |
throw a timing light to make sure its firing spark plugs
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Im going to try to start my buddies moms bone stock miata with my MS. if it does the same thing on her car as mine, then the problem is the ms.
If not I'm back to square one |
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