Blowing lots of black smoke...y?
#1
Blowing lots of black smoke...y?
hey guys...I have a 18C1 transplant in my 93 si civic running a p28 comp that is chipped. I have been experiencing a lot of black smoke coming out of my exhaust when I'm stepping on it...my fuel pressure is set to about 44 psi....I know black smoke represents unburnt feul..therfore I lowered my feul presure to about 42 psi....however the black smoke still persists....can anyone give my any advise on this situation?? My sohc motor had the same symptoms before I spun a bearing and I 'm a little worried about this motor? anything opinions?? thks
#2
got nothing to do with spinning a bearing
you need to get tuned... your chip might be pure *** for your car, or one of the sensors is not reporting correctly. Time to start troubleshooting, from cleaing your filter, to new plugs, wires, distributor cap, rotor, O2 sensor... and if that doesn't make it go away... then you have to look at other items that determine fuel trim.
you need to get tuned... your chip might be pure *** for your car, or one of the sensors is not reporting correctly. Time to start troubleshooting, from cleaing your filter, to new plugs, wires, distributor cap, rotor, O2 sensor... and if that doesn't make it go away... then you have to look at other items that determine fuel trim.
#4
Originally posted by 1SicCiv
Engines running rich...go directly to the source of this problem...something with fuel management
Engines running rich...go directly to the source of this problem...something with fuel management
#5
my h22 actually runs kinda "rich" when I give it ofcourse.. It's not a LOT, but after a month of driving I got black carbon on my bumper.
I get about 450 KM to the 40 L civic tank. That's with booting it into vtec quite often. So I think i'm running pretty good.
Isn't some carbon expected though when you push a car hard?
I get about 450 KM to the 40 L civic tank. That's with booting it into vtec quite often. So I think i'm running pretty good.
Isn't some carbon expected though when you push a car hard?
#6
rat, you are chipped, it's to be expected.
even stock, the car goes into the first two green LEDs on the Autometer a/f gauge under two unrelated conditions:
1. TPS>75%
2. or high load at any time
I'm unsure of the ratio at the first two LEDs but it's just slightly richer than stochiometric. This is a bit of a safety measure against detonation and prolly for lower Oxides of Nitrous (NOx) emissions too.
Too much black smoke is prolly no good though - your mileage is quite excellent, though any swap should get better mileage since you don't push the motor as hard to move such a lightweight chassis.
in other words, no problem at all rat, you're running top notch, I say you should keep the car.
even stock, the car goes into the first two green LEDs on the Autometer a/f gauge under two unrelated conditions:
1. TPS>75%
2. or high load at any time
I'm unsure of the ratio at the first two LEDs but it's just slightly richer than stochiometric. This is a bit of a safety measure against detonation and prolly for lower Oxides of Nitrous (NOx) emissions too.
Too much black smoke is prolly no good though - your mileage is quite excellent, though any swap should get better mileage since you don't push the motor as hard to move such a lightweight chassis.
in other words, no problem at all rat, you're running top notch, I say you should keep the car.
#11
Originally posted by Cablerat
yeah your right Bruno.. It'll be a lot easier to do another one though
lol donate it to u punk? if you want I'll finance you!
yeah your right Bruno.. It'll be a lot easier to do another one though
lol donate it to u punk? if you want I'll finance you!
hahaha deal
as for the original topic... my car puff nice smoke when revving high and maintaining an rpm like 6500... its kinda cool and scares people behind me but its been happening forever and nothing sounds or smells weird so i just go with it....
a while back my oil drain plug was mis threaded (idiot mechanics) and it would drip lots... and i got mybuddies car with like 15 drips of oil on a drive once...
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