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1. [Shop-talk] High Hydrocarbons (score: 1): Author: eric@megageek.com; Date: Mon, 26 Aug 2013 20:06:01 -0400 7.0.1|January 17, 2006) at 08/26/2013 20:05:59, Serialize complete at 08/26/2013 20:05:59; OK, if you remember, I asked about a 1991 2500 Chevy pick up that had been sitting for 5 years. We got it running, and it failed inspection for hydrocarbons being too high (they were 466 and max allo; /html/shop-talk/2013-08/msg00098.html (9,302 bytes)
2. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: Peter Murray <peterwmurray@gmail.com>; Date: Mon, 26 Aug 2013 20:37:40 -0400; Is the crankcase rebreather working? What about the catalytic converter? Oxygen sensors? _______________________________________________ Shop-talk@autox.team.net Archive: http://www.team.net/archive; /html/shop-talk/2013-08/msg00099.html (10,984 bytes)
3. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: Battmain <battmain@yahoo.com>; Date: Mon, 26 Aug 2013 19:01:00 -0700 (PDT); -- (snip) So, I'm guessing that I can get it down with an additive or running really hot (or cold.) What is the collective wisdom of what I can do next to get the last 20 points? Free is best. (snip); /html/shop-talk/2013-08/msg00100.html (9,303 bytes)
4. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: "ElanS4" <ElanS4@cox.net>; Date: Tue, 27 Aug 2013 18:10:34 -0400; After you changed the distributor cap, etc., did you get out the old timing light? Slight changes in the timing can make big changes in the emissions. Also, as far as upping the idle and hoping you d; /html/shop-talk/2013-08/msg00106.html (9,751 bytes)
5. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: "Arvid Jedlicka" <arvidj@visi.com>; Date: Tue, 27 Aug 2013 17:55:26 -0500; When Minnesota had testing I know of an individual that would buy a gallon of alcohol at the paint store, add it to a less than half full gas tank, drive the mile and a half from the Big Box Store to; /html/shop-talk/2013-08/msg00107.html (9,631 bytes)
6. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: eric@megageek.com; Date: Wed, 28 Aug 2013 07:02:18 -0400 7.0.1|January 17, 2006) at 08/28/2013 07:02:18, Serialize complete at 08/28/2013 07:02:18; Is there a way to test O2 sensors? I'm guessing the cat isn't poisoned since it doesn't smell. How do I check a crankcase rebreather? This is a 91, so there is no OBD II Connector. Eric P "Be as bene; /html/shop-talk/2013-08/msg00109.html (10,882 bytes)
7. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: "Karl Vacek" <KVacek@Ameritech.net>; Date: Wed, 28 Aug 2013 07:48:22 -0500; O2 sensors are pretty cheap, and I've changed the one on my '93 Suburban every 50,000 or so. Given the similarity of vehicles and years, I'm guessing it's pretty much identical to the setup on your t; /html/shop-talk/2013-08/msg00110.html (11,156 bytes)
8. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: "Eric J Russell" <ejrussell@mebtel.net>; Date: Wed, 28 Aug 2013 08:58:23 -0400 a=P2oOn6vrs4wA:10 a=8nJEP1OIZ-IA:10 a=S2wpYzp2RsyRkoRNwqcm1Q==:17 a=pw-q824V51wO40Jer7IA:9 a=wPNLvfGTeEIA:10 a=S2wpYzp2RsyRkoRNwqcm1Q==:117 reip=0.000, cl=1, cld=1, fg; A working O2 sensor puts out 0.1-0.9 DC volts. This can easily be measured with a digital voltmeter (even my eL-Cheapo Harbor Freight voltmeter). With the engine warmed up (the sensor has to be hot; /html/shop-talk/2013-08/msg00111.html (10,988 bytes)
9. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: Battmain <battmain@yahoo.com>; Date: Wed, 28 Aug 2013 07:38:08 -0700 (PDT); Pre_OBD II still had a diagnostic connector that you could short to see if there are any codes. (at least my cars did.) Brian _______________________________________________ Shop-talk@autox.team.net; /html/shop-talk/2013-08/msg00112.html (10,053 bytes)
10. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: Michael Porter <mdporter@dfn.com>; Date: Wed, 28 Aug 2013 08:59:57 -0600; Pre-OBD, GM used what was known as the ALDL (Assembly Line Diagnostic Link), usually a 12-pin connector buried in the dash. Jumpering pins A & B initiated flash codes on the check engine light. Cheer; /html/shop-talk/2013-08/msg00113.html (10,569 bytes)
11. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: eric@megageek.com; Date: Wed, 28 Aug 2013 10:53:14 -0400 7.0.1|January 17, 2006) at 08/28/2013 10:51:10, Serialize complete at 08/28/2013 10:51:10; There is a connector that my OBD II connector doesn't fix. How do I 'short' it to get the codes? Eric P "Be as beneficent as the sun or the sea, but if your rights as a rational being are trenched on; /html/shop-talk/2013-08/msg00114.html (10,476 bytes)
12. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: David Scheidt <dmscheidt@gmail.com>; Date: Wed, 28 Aug 2013 10:10:57 -0500; 91 GM stuff sure did, too. But it's specialized, and if you don't have a tool, maybe not worth it. It's pretty easy to monitor the o2 sensor voltages, with a cheap (or not cheap, if you've got one) D; /html/shop-talk/2013-08/msg00115.html (10,231 bytes)
13. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: "Matt" <mbarre@juno.com>; Date: Wed, 28 Aug 2013 16:25:38 GMT; I would think if the O2 sensor was out of range it would turn on a check engine light.I was pleased to learn that my daughter's 91 E30 BMW had a procedure where you short 2 pins on thier special BMW; /html/shop-talk/2013-08/msg00116.html (11,469 bytes)
14. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: "Karl Vacek" <KVacek@Ameritech.net>; Date: Wed, 28 Aug 2013 12:24:44 -0500; The connector is usually mounted somewhere under the edge of the dash near the driver's right knee, though that location isn't guaranteed. There should be two adjacent pins on one end, and the connec; /html/shop-talk/2013-08/msg00117.html (10,736 bytes)
15. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: "Randall" <tr3driver@ca.rr.com>; Date: Wed, 28 Aug 2013 10:51:57 -0700; I agree, if the ECU has gone into limp mode, then it will certainly light the trouble light. But, O2 sensors usually fail gradually, so it still may be that a new sensor will improve tailpipe emissi; /html/shop-talk/2013-08/msg00118.html (9,866 bytes)
16. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: Battmain <battmain@yahoo.com>; Date: Wed, 28 Aug 2013 11:04:21 -0700 (PDT); You'll probably need to dig a bit for the info for your particular car. The connectors on my cars were over on the passenger side. Normally it was a three conductor assembly. The special (read expens; /html/shop-talk/2013-08/msg00119.html (10,090 bytes)
17. Re: [Shop-talk] High Hydrocarbons (score: 1): Author: Benjamin Zwissler <bjzwissler@gmail.com>; Date: Wed, 28 Aug 2013 15:08:33 -0400; Some of the 80's GM cars would show the fault codes on the radio when you put it in diagnostic mode, but you had to have the GM radio. Not sure how far into the 90's that persisted. Ben..... ________; /html/shop-talk/2013-08/msg00120.html (11,550 bytes)

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