Calibration test connector color code. - Saab 900 Bulletin Board - Saabnet.com
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That three prong female connector is wired thus; The gray and red wire, which is the odd prong, the one that lays 90 degrees to the other two, is just 12 volts from the fuel pump relay, the violet and white wire is the "limp home test point" and is connected to pin 19 of the ECU (which also goes to the "check engine" light), the green wire goes to pin 22 of the ECU and is the "base line calibration" lead. That's the one you are interested in. If you are looking at the end of the connector, looking down into the blade holes with the odd one on top, it's the one on the left. What the Saab Master tech's where I used to work found out (so they told me) was that you can adjust the CO screw all day long on a defective AMM and it will never be right (because it's busted). The adjustment can be performed successfully on a good AMM of course but rarely needs to be. It's worth a try if you want to do it but don't expect it to be a magic bullet. Get someone to lend you a good AMM to test with.
posted by 198.233....
Posts in this Thread:
- Cold idle hunting. '88t, is this really the AMM? I have, nicknick , Thu, 15 Dec 2011 18:11:26
- Re: Cold idle hunting. '88t, is this really the AMM? I have, CBS , Fri, 16 Dec 2011 13:52:17
- nicknick , it doesn't seem like you read my long ......, johnd, Fri, 16 Dec 2011 12:39:44
- to me it's more question about tools and knowledge, Siegfried, Sat, 17 Dec 2011 08:17:22
- Calibration test connector color code., Cmyles , Fri, 16 Dec 2011 14:05:23 <-- Viewing This Message
- I'm sorry, i actually meant to have someone else, nicknick , Fri, 16 Dec 2011 13:14:29
- Thanks all. Obviously, i don't have access to a known, nicknick , Fri, 16 Dec 2011 09:01:06
- Hey Nick, been thru similar issues recently, nateh89spg , Fri, 16 Dec 2011 05:54:10
- How about, vvack0matic , Fri, 16 Dec 2011 03:19:18
- Re: Cold idle hunting. '88t, is this really the AMM? I have, JET AIR 900, Thu, 15 Dec 2011 23:12:37
- OK, that was confusing! It always starts fine. Only, nicknick , Thu, 15 Dec 2011 18:12:47
- Re: OK, that was confusing! It always starts fine. Only, vvack0matic , Thu, 15 Dec 2011 18:24:42
- Only one car has a dashpot, and this happens even, nicknick , Thu, 15 Dec 2011 18:49:59
- Re: Only one car has a dashpot, and this happens even, Saabnutt, Thu, 15 Dec 2011 19:43:52
- o2 sensor, 85turbosled, Thu, 15 Dec 2011 22:37:14
- Re: Only one car has a dashpot, and this happens even, Hans, Thu, 15 Dec 2011 21:32:17
- What about the NTC sensor?, whitesaab, Thu, 15 Dec 2011 21:00:07
- Re: Only one car has a dashpot, and this happens even, Cmyles , Thu, 15 Dec 2011 20:57:08
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