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#1
12-25-2002, 06:45 AM
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higher rpm fuelling up + missing
my HR31 GTS-X with RB20DET running 10psi fuels up really bad after 4000rpm or so and u can even see black smoke pouring out the exhaust! When it does it u can certainly feel it, runs like a bag of crap!
Anyone with the same problem or any solutions would be greatly appreciated. Also put flat to floor (in any gear, it's auto) and it revs the guts out of it and wont change gears until i back off??????? 
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#2
12-25-2002, 08:51 AM
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When was the last time you changed the fluids in your auto?
"RB20DET running 10psi fuels up really bad after 4000rpm or so and u can even see black smoke pouring out the exhaust!" I do not really understand? My Stang runs 40psi at idle, and about 90-100 under boost. Sounds like your fuel pump is going, your psi is not there at the higher rpm range. Black smoke sounds like your turbo might be going as well. Just a guess, all your problems seem to be unrealated, meaning you got some work to do  Good luck.
__________________
 R32 GTR w/351w .020 forged, 8.9:1, PTK T76, Turbosmart 40 BC & 45 WG, Tial 40 BV, AFR 205s 310/245, 228/228 550/550 114 Hydro, 1.7rr, Isky RLs, 4" HKS exhaust, ARC 30x16x4 IC, 8 point cage, C2 gauges, 2 step, C4 3200 stall w/ R Manual & Hurst Ratchet shifter, 17" Panasport G7s, CSU 750 & bonnet, Vic Jr intake, 3.63 gears, Corbeau Carrera seats, Custom wide body, Bomex side skirts and rear 1/4 caps, Tommy Kaira bumper.
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#3
12-25-2002, 02:02 PM
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Quote:
 And what friggin supercharger are you using Tony?
__________________
Member of AF's Slide Squad (Member #04) Quote:
Neishlin Motors Soon to be my best friend 
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#4
12-25-2002, 06:51 PM
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Black smoke? Maybe your right. Black is normally based from an oil problem, at least that is what I remember. I could be mistaken. Do a little research, its getting late for me.
I am running a S-trim, 13lbs now.
__________________
R32 GTR w/351w .020 forged, 8.9:1, PTK T76, Turbosmart 40 BC & 45 WG, Tial 40 BV, AFR 205s 310/245, 228/228 550/550 114 Hydro, 1.7rr, Isky RLs, 4" HKS exhaust, ARC 30x16x4 IC, 8 point cage, C2 gauges, 2 step, C4 3200 stall w/ R Manual & Hurst Ratchet shifter, 17" Panasport G7s, CSU 750 & bonnet, Vic Jr intake, 3.63 gears, Corbeau Carrera seats, Custom wide body, Bomex side skirts and rear 1/4 caps, Tommy Kaira bumper.
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#5
12-25-2002, 10:43 PM
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sorry i meant 10psi boost up from factory. It's not white (indicating head gasket problem or blue indicating burning oil) it's black excess fuel being burnt. It just chokes up really bad and runs really rich. I've run carbon cleans through it, had the injectors checked + cleaned. I've even tryed heaps of fuel additives + cleaners. I've replaced just about every electrical conector on the injectors, TPS, coolant temp etc.
It's gotta be an engine management problem or maybe o2 sensor or AFM????
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#6
12-26-2002, 01:19 AM
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You are absolutely right Black is Fuel, Blue is oil.
If your at WOT, o2 do not play. Have you cleaned your MAF?
__________________
R32 GTR w/351w .020 forged, 8.9:1, PTK T76, Turbosmart 40 BC & 45 WG, Tial 40 BV, AFR 205s 310/245, 228/228 550/550 114 Hydro, 1.7rr, Isky RLs, 4" HKS exhaust, ARC 30x16x4 IC, 8 point cage, C2 gauges, 2 step, C4 3200 stall w/ R Manual & Hurst Ratchet shifter, 17" Panasport G7s, CSU 750 & bonnet, Vic Jr intake, 3.63 gears, Corbeau Carrera seats, Custom wide body, Bomex side skirts and rear 1/4 caps, Tommy Kaira bumper.
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#7
12-26-2002, 01:45 AM
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It's gotta be an engine management problem. I totally agree
__________________
R32 GTR w/351w .020 forged, 8.9:1, PTK T76, Turbosmart 40 BC & 45 WG, Tial 40 BV, AFR 205s 310/245, 228/228 550/550 114 Hydro, 1.7rr, Isky RLs, 4" HKS exhaust, ARC 30x16x4 IC, 8 point cage, C2 gauges, 2 step, C4 3200 stall w/ R Manual & Hurst Ratchet shifter, 17" Panasport G7s, CSU 750 & bonnet, Vic Jr intake, 3.63 gears, Corbeau Carrera seats, Custom wide body, Bomex side skirts and rear 1/4 caps, Tommy Kaira bumper.
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#8
12-26-2002, 02:43 AM
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Yes sky, engine managment for sure.
Try resetting your ECU for the hell of it too.
__________________
Member of AF's Slide Squad (Member #04) Quote:
Neishlin Motors Soon to be my best friend
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#9
12-26-2002, 06:17 PM
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I doubt it would be the factory ECU as they are pretty primitave in the R30 and R31's.
If the car idles fine and is fine under normal driving conditions other than at WOT then the AFM will be ok. Assuming your car is fairly standard here, what sort of spark plugs are you running? In the RB20DET you should be using NGK platinums part number PFR6A-11. Set the gap to .9 mm or .035 inch. While your there check the carbon tips on the coil packs. Depending on which style you have there should be a spring with a carbon tip. If the spring is weak then the carbon tip will not make good contact with the plug. You can gentely shave it down to make it square again and good contact with the top of the plug. Which brings me to another thing. Be very careful removing them as the wires and coil packs themselves will be brittle. Another thing to check is for any splits in your induction hoses or loose clamps. What could be happening is a boost leak, a small one will cause you grief. The AFM will be seeing more air than what will actually reach the engine causing an over fueling situation.
__________________
You don't own a Skyline, then don't cry to me about it! 1992 Silver R32 GTR tickled to 450hp. - Sold when I left NZ in 2004 Arguing on the Internet is like competing in the special olympics. Even if you win, you're still retarded. Never confuse kindess with weakness. AF user guidelines, Please remember to abide by them  
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#10
12-26-2002, 07:36 PM
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it had a very fast idle, but i fixed that by pulling my idle speed control motor out and where the little piston runs in the sleeve inside was worn and really sloppy hence letting too much air through. i fixed that by wrapping it with electrical tape, no just runs at base idle of around 600rpm and idles fine and doesn't stall.
Just recently it has a bit of a miss at idle every now & then, i've reset the ECU a few times now, but nothing every seems to help let alone the fuelling up I have put new NGK platinum plugs in it but i didn't adjust the gap
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#11
12-27-2002, 02:17 AM
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Did you check the gap, normally their in the ballpark, but you never know.
__________________
R32 GTR w/351w .020 forged, 8.9:1, PTK T76, Turbosmart 40 BC & 45 WG, Tial 40 BV, AFR 205s 310/245, 228/228 550/550 114 Hydro, 1.7rr, Isky RLs, 4" HKS exhaust, ARC 30x16x4 IC, 8 point cage, C2 gauges, 2 step, C4 3200 stall w/ R Manual & Hurst Ratchet shifter, 17" Panasport G7s, CSU 750 & bonnet, Vic Jr intake, 3.63 gears, Corbeau Carrera seats, Custom wide body, Bomex side skirts and rear 1/4 caps, Tommy Kaira bumper.
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#12
12-27-2002, 04:37 AM
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no, didn't check the gaps but the missing and fuelling up was there before replacing the plugs, the didn't make it any better or any worse
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#13
12-27-2002, 04:51 AM
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It is sound more and more like a leak in your pluming or i/c. Spend some time and pull it all appart checking for cracks or splits.
__________________
You don't own a Skyline, then don't cry to me about it! 1992 Silver R32 GTR tickled to 450hp. - Sold when I left NZ in 2004 Arguing on the Internet is like competing in the special olympics. Even if you win, you're still retarded. Never confuse kindess with weakness. AF user guidelines, Please remember to abide by them
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#14
12-27-2002, 05:31 AM
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I guess using WD-40 will not show anything, looking for the leaks?
__________________
R32 GTR w/351w .020 forged, 8.9:1, PTK T76, Turbosmart 40 BC & 45 WG, Tial 40 BV, AFR 205s 310/245, 228/228 550/550 114 Hydro, 1.7rr, Isky RLs, 4" HKS exhaust, ARC 30x16x4 IC, 8 point cage, C2 gauges, 2 step, C4 3200 stall w/ R Manual & Hurst Ratchet shifter, 17" Panasport G7s, CSU 750 & bonnet, Vic Jr intake, 3.63 gears, Corbeau Carrera seats, Custom wide body, Bomex side skirts and rear 1/4 caps, Tommy Kaira bumper.
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#15
12-28-2002, 03:47 PM
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It would if he could put the car on a dyno and do the checks, then so would soapy water but not sudzzy.
__________________
You don't own a Skyline, then don't cry to me about it! 1992 Silver R32 GTR tickled to 450hp. - Sold when I left NZ in 2004 Arguing on the Internet is like competing in the special olympics. Even if you win, you're still retarded. Never confuse kindess with weakness. AF user guidelines, Please remember to abide by them
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