Re: [DML] Re: Not so hot start problem
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Re: [DML] Re: Not so hot start problem



Don, When the TTS is working correctly it activates the cold start to inject 
gas to start the car when it's cold or under 95 degree F. Then, till the 02 
sensor warms up, the Lambda unit is sending out a fixed pulse to the 
Frequency valve to hold the gas pressure steady in the lower chamber of the 
fuel distributor ( richer )( You should have no seeking at this point. ) , 
then when the 02 sensor heats up and starts measuring the air/fuel mixture, 
the Lambda unit starts adjusting the fuel pressure to the lower chamber of 
the fuel distributor to adjust the mixture. Now is when If your seeking a lot 
the Air flow meter is fighting against the mixture to go rich then lean. 
Adjust the air flow meter when the engine is hot and idling to obtain the 
best smooth idling. That will be close. Best results is with an emissions 
tester.
John hervey
http://www.specialtauto.com/ 

<< Now, what about this business about it not "hunting" for idle after 
started cold? How does this figure in? What is it symptomatic of, not 
slightly over rich on cold start? >>





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