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Old 10-06-2007, 06:45 PM   #1
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Default Idle problems - jrsc gsr
I am having problems getting the idle right on my car. Right now its tuned on hondata with a basemap from jackson racing. The car is running stupid rich right now. The car is idling around 1000-1200, but when I rev the car, and then let off the gas, the revs drop down to like 400-500 and seems to bog down, then rises back up. Sometimes it will just stall out. Help!
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Old 10-14-2007, 06:44 PM   #2
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air leaks maybe? bad basemap tuning? how are you sure its rich?
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Old 10-14-2007, 07:00 PM   #3
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I was able to fix most of the problem by increasing the IACV duty cycle up from 25% to 75%. The car is no longer stalling out, and idles round 900. I don't think there's an air leak because its pulling almost 20 in hg of vacuum at 900 rpms. I think its running rich because 1. the wideband is telling me that, and 2. the exhaust reeks of gas. I tried leaning it out at idle with hondata, but the more fuel I took out, the more it ran like shit.
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Old 10-14-2007, 07:04 PM   #4
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is the o2 still telling you its rich? if it is the ecu should be trying to lean it out its self. maybe youre fuel pressure is incorrect.
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Old 10-14-2007, 07:28 PM   #5
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I suspect fuel pressure as well. Could the stock FPR go bad becuase I have a high flow fuel pump putting out alot more pressure? If so, that would explain why the car is so rich during cruising and idle.
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