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Cold Idling problem - which sensor to change ? 200

posted by  runwld2 on  Thu Dec 23 15:46 CST 2010
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last visit: Tue Sep 30 13:11 CST 2014
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I may be totally out on this, but AFAIK the CI system does not use a resistive temperature sensor for the injection system, the enrichment job is done by the warm up(aka control pressure) regulator.
The CI has a thermo time switch, which activates the cold start injector during cranking, depending on engine temperature, but the warm up/ enrichment is done by adjusting the control fuel pressure to the fuel distributor.
The thermo time switch is located under the manifold around #2.
Not sure about the gray wire sensor, may be for the dash temp gauge?
If idle is too high I would investigate the CIS system, which DOES have a resistive sensor with 2 wires (blue and red for an 83) connected to pins 9 and 11 on the CIS control box (bottom box in outside of passenger footwell)
According to chart- 5500ohms @ 32F, 800@ 50F, 190 @ 212F.
All this is in the Bentley manual..............
--
84 242Ti IPD bars&springs, 89 745 16v M46 IPD bars, 89 744 16v M46 IPD bars, 93 945 Turbo AW71, 91 245SE AW70 IPD bars, 93 245 CLassic M47






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New Cold Idling problem - which sensor to change ? [200]
posted by  nabramson subscriber  on Tue Dec 21 17:32 CST 2010 >


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