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Interchangeable ECU's and Cold Start Issue's

posted by  dobber13 on  Sun Feb 28 04:35 CST 2010
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last visit: Sat Oct 18 19:10 CST 2014
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Hi All, My 85 240 Ti B21ft has a cold start problem.I have solved the high idle after warm up but still have a cold start problem.When I start in the morning she stalls at first start.Second start she will run but stumbles to almost die.I don't get a fast idle like I think it should.I have checked the timing,dwell,cleaned throttle body,cleaned air control valve,vac. leaks(none), electrical tests on all- temp. sensor,ECU,air control valve,throttle switch,cold start valve . Even though the ECU test's O.K. I have heard ECU's can test O.K. but still be bad.So I was thinking of trying a different ECU.My ECU is a 0 280 220 005.Any thoughts on this? Charlie






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