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May 23rd, 2008, 10:01 PM
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Help!!
Failed emissions for the second time today. I have a turbotweak emission chip installed, even put heat in the gas tank this time
 . Haven't got a clue what's causing it...any ideas??? Here it is:HC....reading 3.51 limit 0.8 FAIL CO....reading 9.23 limit 15.0 PASS NOX..reading 2.67 limit 2.0 FAIL I also put my stock injectors back in after the first failure and got the HC reading to go down a bit (it was over 4). I have basically the same set up in my car that passed two years ago. Any suggestions would be appreciated.
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87 WE4 Turbo T     
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May 30th, 2008, 02:46 PM
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Is your EGR working? Are you using a catyletic converter? If so, how old is it?
They lose their efficiency the more miles they get on them.
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1987 GN Astroroof Precision 6131BB, BGC 23 row stretch IC, 60lb inj., 212/212 Comp roller cam, T&D rollers, TT Akly chip, Razor's Alky kit, Billet main caps, Speed-Pro forged pistons, port & polished heads & intake, 70mm T/B, Edge 10" 3000 stall L/U, trans built by mikestertwo with PTS parts, 3" THDP, Poston headers, PTS aluminum radiator, etc., etc.
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June 5th, 2008, 01:15 AM
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Took the car in...turns out the intake manifold was leaking
Got that squared away and it passed NOX, still failed HC (but got it down to 2.5). Guy at the shop says the coil may be bad so I'm gonna try that and see what happens... Worst part of this crap is after July 1st their not even testing anything older than 95 anymore! 
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87 WE4 Turbo T
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June 5th, 2008, 12:54 PM
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i was in the same boat but my cat was on but gutted....i overlooked the easy stuff...still havent brought it in for the 4th try yet
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June 7th, 2008, 06:26 PM
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To get mine to pass I turned the fuel pressure down so the car barely ran. It had just enough power for the dyno. As soon as I got outside i turned it back up. You have to turn it down more than the computer can compensate..
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89 TTA #145 Festival car #118 34k miles 11.5@116.11 Best 60' 1.52
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June 8th, 2008, 10:13 AM
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check the cat.i tried 4 times b4 I got my sticker.....same HC readings...cat was gutted....don't overlook the obvious things...it can get costly
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