LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

unpluged injector for emissions

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Old Nov 26, 2003 | 02:02 AM
  #1  
RickS's Avatar
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From: Maryland
unpluged injector for emissions

i just realized that i have to do emissions, everything is mostly stock, but i want to make shure it will pass,

will my car throw a code if i unplug 2 injectors to turn my 8 into a 6? got the idea from Procharger
will this work to cheat emissions?

Last edited by RickS; Nov 26, 2003 at 02:31 PM.
Old Nov 26, 2003 | 02:16 AM
  #2  
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stock? u'll pass easily.....dont even bother fiddling with anything
Old Nov 26, 2003 | 11:02 AM
  #3  
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great to know, only reason i am worrying, is because my old v6 failed the first time. and that was 6 cylinders,

thanks
Old Nov 26, 2003 | 01:03 PM
  #4  
94 NO TOP Z's Avatar
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I doubt unplugging the injectors will do anything. If you unplugged 2 you would basically be just be pumping air into the exhaust with those 2 cylinders which would be good but, the 02s would detect the extra air and assume it is too lean and the computer would add more fuel to the other cylinders. It would probably end up being the same. I would think a stock car should pass no problem though.
Old Nov 26, 2003 | 01:08 PM
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disable closed loop and the o2s wont do that Then its a good thing
Old Nov 26, 2003 | 02:14 PM
  #6  
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From: Maryland
i swear MD emissions hates me or somethin, i failed
scaming ******... LOL
well heres my results

HC me: i got 1.2220 GPM FAIL
HC state standards: 1.0000 GPM

CO me: 3.9515 GPM PASS
CO state standards: 20.0000 GPM

NOx me: 1.1797 GPM PASS
NOx state standards: 2.2000 GPM

CO2 me 505.9365 GPM
state standard: N/A

any tips for passing HC?
he said the hc's went over the limit during deceleration.

does the "pass emissions in a bottle" fuel additive stuff work?

is she runnin Rich?

Last edited by RickS; Nov 26, 2003 at 03:44 PM.
Old Nov 27, 2003 | 11:25 AM
  #7  
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strange that u failed...b/c I have friends with single cat that pass in cali. yeah get it scanned see if there's anything in there. might have a misfire or running a bit rich?
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