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Emissions - one last time
Posted by Doug D [Email] (more from Doug D) on Sun, 24 Oct 2004 07:14:24
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OK - One last time and then I spend my $620 at a certified emissions mechanic and either pass or get a waiver. My '86 SPG (130 K, but heavily maintained) still won't pass emissions in VA. I checked all the vacuum hoses and found the big hose from the canister not connected (fixed that). Checked the O2 sensor - was fluctuating. AAM should be OK - only thing I pass is the CO value which is right on the mark. I got a timing light and found the timing was at 10* BTDC - adjusted to 16* BTDC. Put in 93 octane gas.
I am still getting virtually the same numbers that I did the first time:
15 MPH
HC ppm 170 v. 135 allowed (fail)
CO % 0.61 v. 0.76 allowed (pass)
NO ppm 2553 v.1052 allowed (fail)
25 MPH
HC ppm 161 v. 130 allowed (fail)
CO% 0.58 v. 0.80 allowed (pass)
NO ppm 2526 v. 957 allowed (fail)
Is something completely blown that i haven't touched? Injectors? Catalytic Converter? ECU? PCV? Engine temp from thermostat and fan switch?
I just know I can fix this and I don't want it to beat me. I just need the one right piece of information.
Doug
posted by 4.14.6...
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