Car wont start when cold please help
So yesterday when I got out of school my car did not start. I had to call my dad to bring the laptop and change the settings on the cranking stuff, I richened it up and it started. (I was using Braineck's settings).
So I kept the settings that worked but this morning it did not start and I had to walk 20mins to work when I was 10 degrees outside. Can somebody give me something that works, I've mess with them but cant get it right... My setup is 2554 MSPNP 460cc injectors. I may just make the drive from Indianapolis to the DIY shop in GA this monday to dyno tune everything, but in the mean time I need to use the car. |
lower the cranking PWs.
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But I was using your cranking PWs settings (low) and it didnt start then I used other PW values that I made (higher) and it started. But yea maybe the ones now are too high and need to be in between of yours and the current ones, I'll try.
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Start low with your PWs, low enough that you know it won't start. Then increase it .1 at a time till it starts and add another point. Should be golden after that. Only change the PW that correlates to the temp the CLT sensor is reading.
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IIRC last time i checked i used 3-4ms at 50° with 460cc injectors:) the values i gave you were untested in cold weather and i couldnt start my car either.
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Originally Posted by Braineack
(Post 199342)
IIRC last time i checked i used 3-4ms at 50° with 460cc injectors:) the values i gave you were untested in cold weather and i couldnt start my car either.
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Originally Posted by 90turboMX5
(Post 199367)
Just to be clear, I'm not complaining, I took your values and just put them in my MS. Those values were posted by you for someone else, so its my own problem.
chop, chop...get to figuring it out :) |
Originally Posted by 90turboMX5
(Post 199367)
Just to be clear, I'm not complaining, I took your values and just put them in my MS. Those values were posted by you for someone else, so its my own problem.
i think last time i posted any cranking PW values, my fuel rail was also leaking at the same time and i was having trouble in cold mornings under 50° my latest and greatest values are: -40 5.2 -20 5.0 0 4.7 20 3.5 40 3.1 60 3.0 80 3.0 100 3.0 130 2.8 160 2.8 they may or may not work perfectly for you. it's just one thing you'll have to experiment on your own, but start low. if you start backfiring, it's too high :) |
Today it was 33 degrees indicated on IAT.
I started with the following: 20F = 2.5 40F= 2.5 and raised the numbers slowly by .1 up to 3.5 when it started backfiring like gunshots but it wont start!!!!!!!! and I need to go to school tom. I took the plugs out and they are black and covered with gas, what should I do, i think the engine may be flooded. |
yeah, dry the cylinders out and try again.
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Well, I dried the cylinders with compressed air and cleaned the plugs with thinner. Before I put the back in I checked for spark and there's no spark going on any of them. I thought maybe my coils fried and put my spare set in and still no spark. Now it wont start even in the garage which is heated at 70 degrees. Wtf
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:confused: not sure, burning a few settings and trying to start a few times surely wouldn't fry coils.
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should the plugs still work even if the electrode is black? I mean they dont have carbon "deposits" they are just kinda black
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kinda black and kinda wet? You can foul plugs with too much fuel. You either have to dry them out or replace them. If that's the case decrease your fuel alot before replacing otherwise you'll just wet them again.
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yeah they'll work. do you not even get spark from the wire to a ground point? lay the wire near the tow lift hook thing and crank, you should see it spark. I'd have no clue why they would have stopped working. is your ignitor hot to the touch?
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Originally Posted by Braineack
(Post 199649)
yeah they'll work. do you not even get spark from the wire to a ground point? lay the wire near the tow lift hook thing and crank, you should see it spark. I'd have no clue why they would have stopped working. is your ignitor hot to the touch?
If you guys have any tips please let me know, I'm going to get it tune at DIY's shop on Monday but first I need to make my car get there. Can somebody give me their MS file? for 460cc would be best |
Ok I found the problem, the igniter was not working, it burned!! this is really getting to my nerves, first the tachometer stopped working, now the igniter breaks. I put another igniter from my brother's miata on and it started, rich as hell though. I took the car outside the garage and left it in the cold. Started with low PW's (2.5) and went up to 6.0 but it wont fucking start, it probably burn the igniter again.
AND NO, I never uploaded firmware with the igniter connected.... this is bs |
you probably have it set to inverted spark, you don't want that with the mspnp
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Originally Posted by Mach929
(Post 200329)
you probably have it set to inverted spark, you don't want that with the mspnp
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