Re: Plugs black. Running rich? Why? - Saab 9000 Bulletin Board - Saabnet.com
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Re: Plugs black. Running rich? Why?
Posted by djgw (more from djgw) on Tue, 18 Nov 2008 11:06:04
In Reply to: Plugs black. Running rich? Why?, RayF, Mon, 17 Nov 2008 12:29:25
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No one has mentioned the Manifold Absolute Pressure sensor (MAP) that is on the false bulkhead. It could be off, sensing pressure that is not in the manifold and signaling the Engine Control Module to have an injector open time that is too long for the amount of air in the cylinder to be burnt, resulting in black plugs and a CEL. To check it out Ohms of resistance could be measured with increasing pressure being applied to the pipe.
posted by 207.144.155...
Posts in this Thread:
- Plugs black. Running rich? Why?, RayF, Mon, 17 Nov 2008 12:29:25
- Re: Plugs black. Running rich? Why?, djgw, Tue, 18 Nov 2008 11:06:04 <-- Viewing This Message
- Vaccum hoses /air filter, Saabnutt, Mon, 17 Nov 2008 21:19:41
- Re: Plugs black. Running rich? Why?, oldsaab, Mon, 17 Nov 2008 16:34:38
- Autozone and Advacne Auto, marvinstockman, Mon, 17 Nov 2008 16:34:27
- Re: Plugs black. Running rich? Why?, Bill Davies, Mon, 17 Nov 2008 13:37:43
- Re: Plugs black. Running rich? Why?, paul de k, Mon, 17 Nov 2008 13:32:34
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