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FAST users
Guys,
My car is driving me nuts. Its very rich at idle, fouling the plugs and using over 5gal of fuel just idling/revving for about 25-30 minutes! It won't rev under load. I have changed/replace the entire ignition system (everything). I would like to compare my FAST setting with what you're using. I have a base program from ASSC.
How did you set your timing? I rev the engine to 2500 and set it at the crank what the fast is showing.
What the range of your TPS? (10-93) Where is it set at idle? (24)
Closed loop parameters
closed loop high rpm- 4000
closed loop low rpm- 3900
cold closed loop delay (s) 10
hot closed loop delay (s) 10
closed loop gain (%) 30
max closed loop step (%) 9
closed loop min temp (%) 121.20
My a/f ratio is set at 13.8 at idle but actual was 9.xx!
My fuel calculation parameters are all correct. Thanks!
MIKE
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Mike,
Just sent a copy of my FAST setup for you to look at.
John
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John,
Thanks alot! I will look at it when I get home. Again thanks.
MIKE
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John,
Thanks I copy your air/fuel table. I lowered my fuel pressure from 50lbs to 40lbs at idle and the car seem to like it there better. Still burning rich 11.xx to 1. My TPS with only go down to 10 so I will change it tomorrow. What does your TPS reads and idle? Thanks again!
Congrats on the feature in MMFF!
MIKE
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No, no, you don't want the TPS to be zero at idle, mine is at 16. It is just a reference number to set some of the other parameters by. My WOT TPS percent is 89.
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John,
I'm thinking the TPS is bad because it wont go to zero. The car loads up as soon as I touch the throttle. What could cause it to do that?
MIKE