So my car wont start.
Ok so I have a 99 Miata with virtually no mods, the only "mod" it has is the over clocked ecu and the cat has been hollowed out.
Ok on with the problem, it just started today about an hour ago. When I go to give it almost any amount of gas it wants to cut out. I replaced the plugs, fuel filter about a year ago and i just replaced the fuel pump like 4 months ago. If I slowly give it gas it will rev up but any abrupt throttle increase and it cuts out, not stumbles but just cuts out. Also when I go to start it it wants to stumble when starting. It idles kinda high at first but then it will go down to a normal idle and sit there perfectly. Any ideas? |
any stored codes? smell like fuel?
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Originally Posted by Braineack
(Post 331947)
any stored codes? smell like fuel?
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Ground a plug on the head and try to start it. See if there is consistant fire.
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Originally Posted by Toddcod
(Post 331981)
Ground a plug on the head and try to start it. See if there is consistant fire.
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somehow it was/is flooding...
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afm no good maybe?
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Originally Posted by Braineack
(Post 332014)
somehow it was/is flooding...
Originally Posted by levnubhin
(Post 332020)
afm no good maybe?
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Originally Posted by redrumracer
(Post 332055)
well then thats not good cause over-clocking the ecu supposed to actually lean it out slightly
i actually have a maf but i thought about that too and unplugged it and the car changed the way it acted. Your car actually ran with the MAF unplugged?! |
Originally Posted by johnwag
(Post 332226)
Why exactly are you overclocking the stock ecu on a stock car? Are you referring to the "rpm crystal mod"?
Your car actually ran with the MAF unplugged?! |
That crystal mod is great! I need to do that to my car, since I have the 4.30 gears, but I'll probably just wait until MSPNP.
When you went out to restart the car today, had the battery died down completely? |
Originally Posted by redrumracer
(Post 332237)
i overclocked(yes the "crystal mod") it so i wouldnt have to do an extra shift at the drag strip(dont flame) and yea it ran with the maf unplugged.
so you overclocked your ECU, which should lean the mixture, then unplugged your MAF so the engine doesn't know how much fuel to compensate with? What's the temps like is GA, based on your "smelling fuel" statement, you're probably flooding it since the ECU doesn't know the intake temps and the correct amount of fuel to inject....it probably fails to 60*F. and doesnt the MAF drive the alternator? |
Originally Posted by johnwag
(Post 332239)
That crystal mod is great! I need to do that to my car, since I have the 4.30 gears, but I'll probably just wait until MSPNP.
When you went out to restart the car today, had the battery died down completely?
Originally Posted by Braineack
(Post 332240)
so you overclocked your ECU, which should lean the mixture, then unplugged your MAF so the engine doesn't know how much fuel to compensate with?
What's the temps like is GA, based on your "smelling fuel" statement, you're probably flooding it since the ECU doesn't know the intake temps and the correct amount of fuel to inject....it probably fails to 60*F. and doesnt the MAF drive the alternator? Also it somehow is running right now, i dont know how or what happened but i would like to try and figure it out. mainly because if it happened once it will happen again and saying "oh well it went away" is not a solution to me. |
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