Finally!! it idled - Miata Turbo Forum - Boost cars, acquire cats.

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Old 07-25-2009, 07:42 PM   #1
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Default Finally!! it idled

I got it to idle. Now it seems to be very rich, while ideling my Air Ratio gauge reads about 9.5 and when I step on the pedal I can see black smoke coming out of exhaust, I managed to control the oscilation by changing the frequency on idle control to something like 200kHz Im not sure if that is ok to do but it seems to work. well now I need to see what else do I need to play with and i stil have oscilations when i step on throtle and let go, it bounces down to about 700 rpm then about 1100 till it fanally sets at about 950 to 1000 rpm. It is by no means perfect but at least it idles enough to play with parameters, and preety much im going blind, experimenting to see what reaction I get. So I will do nothing else today. Ill play with it tomorrow. Any tips and advice will be greatly appreciated.
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Old 07-25-2009, 08:15 PM   #2
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With the car, you want to make sure you learn with the MAP on the high side while the car is keyed on but the engine is not running. Then in order to set the low point, you would need a vacuum generator with a gauge. Its probably not really necessary, close enough is close enough.

As far as idle 2,7,2 in the closed loop idle parameters really works well for me. Changing teh idle frequency is fine. From here its just fuel tuning.
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Old 07-25-2009, 08:29 PM   #3
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thanks Travis.

I will play with it tomorrow and Ill check the local Auto Zone or Oreileys for one of those gauged vacuum pumps.

I see some light at the end of a long tunnel but At least I see something. As soon as I manage to tune it Ill be ordering the 600cc Injectors and right after that BOOST!!!
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