Power FC non seq with 1600cc secondaries wont idle and flooding.
#1
non seq with 1600cc secondaries wont idle and flooding.
My rebuild is running rich, wont idle (dies under 1500 rpm), and floods after shutdown. I've unplugged the secondaries and diled back my 550 primaries to 50 percent or so. still the problem presists. I dont know if im fighting a mechanical problem or computer problem. Just wondering if anyone had any base setting tricks to get my car to lean out and idle? I've got a datalogit but have been having problems with my laptop connecting to it, so ive been battling the commander right now. I'll get the laptop to work when I have some time.
I dont think my fuel is leaking past my injectors since pressure holds after shutdown.
I dont think my fuel is leaking past my injectors since pressure holds after shutdown.
#2
That's strange problems. If in fact nothing is leaking, then your secondaries shouldn't have anything to do with it since they aren't used at idle. Yet with stock primaries you shouldn't need to fiddle with anything on the idle. If you want to try to pull some more fuel out, you can try putting in negative lag for the primaries, but that really shouldn't be necessary for 550s. I assume you know that it's likely to flood anytime you turn it off and the car isn't warm yet.
I guess I'd check to make sure everything is hooked up correctly, especially the MAP sensor, idle control solenoid, and the TPS sensor. If it's fresh after a rebuild, the idle bleed screw might need to be reset too.
I guess I'd check to make sure everything is hooked up correctly, especially the MAP sensor, idle control solenoid, and the TPS sensor. If it's fresh after a rebuild, the idle bleed screw might need to be reset too.
#4
Originally Posted by TailHappy
That's strange problems. If in fact nothing is leaking, then your secondaries shouldn't have anything to do with it since they aren't used at idle. Yet with stock primaries you shouldn't need to fiddle with anything on the idle. If you want to try to pull some more fuel out, you can try putting in negative lag for the primaries, but that really shouldn't be necessary for 550s. I assume you know that it's likely to flood anytime you turn it off and the car isn't warm yet.
I guess I'd check to make sure everything is hooked up correctly, especially the MAP sensor, idle control solenoid, and the TPS sensor. If it's fresh after a rebuild, the idle bleed screw might need to be reset too.
I guess I'd check to make sure everything is hooked up correctly, especially the MAP sensor, idle control solenoid, and the TPS sensor. If it's fresh after a rebuild, the idle bleed screw might need to be reset too.
#6
Fuel pressure might make sense. You really shouldn't be having to do ANYTHING to the PFC for idle if you have stock primaries. I would check everything else rather than trying to use the PFC for a bandaid.
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#8
Shoot, I can't remember offhand. I know the specs are in the FSM, which you can find online. Don't forget you're supposed to set your fuel pressure with the vacuum line removed from your regulator, since the vacuum further reduces pressure. It's been a while since I've driven my car, but my gut feeling is that 28 doesn't sound too low for idle. Maybe someone else here can help more on that...
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