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help.. car wont pass smog
hey everyone im in need of some help haha.. my car wont pass smog with a tt smog chip the co's and hydro carbons r way high around 450 to 500s ... i set the fuel pressure to 38 with line off and then set it lower and it still was way to high. my set up is basic mods. 009's with a ta-49,rjc power plate, 3'' thdp, 3'' atr ss exhuast, afpr, big mouth cai, 100 oct vp unleaded fuel.
any help would be much appreciated. thanks. |
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Do you have a catalytic converter? Eric did burn you an emissions chip I assume. Is your EGR valve hooked up and functioning?
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1987 GN 3" ATR downpipe,PTE TA 49 turbo, adj. wastegate,adj. fpr. Art Carr shift kit 2 1/2" Hooker ex. 3" Hi flow gutted cat, aero chamber muffs. 9"K&N filter, 60/65lb. mototron injectors,heads pocket ported, 3 angle valve job, LT1 valve springs, 340 walbro fp.hot wired, plenum spacer, 160 therm. cross drilled slotted rotors, vacuum brake conv. Kirban GNX style rims,48k on car, 93 Turbo Tweak chip, 2.1 scanmaster,knock guage, 3" LT1 Maf w/translator, VDO guages,manual boost controller. |
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Drain the 100 octane fuel, to begin with. Use 93 or lower. Higher octane gas burns at a slower rate.
Then, add two bottles of HEET to a 1/2 tank and re-smog.
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86 Gray T-Type, Bench Seat, Column Shift.... 274 Stage II with Stage II Heads |
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Quote:
And make sure you have a good cat, and fully functional EGR (and the chip must have a fully functional egr table). Get your fuel pressure back where it belongs! The only thing you're doing by messing with the fuel pressure is screwing up the state of tune, and eventually going onto lean mis-fire, which jacks up the pollutants.
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TurboDave EWCS(SW) USN (Ret.) My Photo Gallery Email Us Sevierville, TN TranslatorPro MAFless fuel, spark and boost management 86 GN(TranslatorPro/ExtenderPro on speed density w/boost & fuel pump control,PLX-WB) (original owner) 87 GN (second owner) 84 L69 Z28 (original owner) 01 Excursion LTD 7.3L PSD(Power Stroke Diesel), Turbo, 4X2 08 Honda Accord EX-L, 270HP 3.5V6, AT |
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