Subject	Re: Cold start troubles
Posted by	zromtech on February 07, 2015 at 1:29 PM
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In Reply To	Cold start troubles posted by jesusyi123z32 on February 04, 2015 at 07:15 PM
Message	If the problem is a cold-start hesitation that goes away after driving a few blocks, it may just be the (functioning as designed) catalyst warmup system in the ECU. This is an emissions control system that retards the ignition timing under specific warm-up conditions to rapidly heat the catalytic converters up to their 'spark point'. When this system is active there is a lot of hesitation at partial throttle below 2600rpm and bucking during throttle on/off transitions. Does the problem abruptly go away above 2600rpm or once coolant temp hits 55C (130F)?
Follow Ups	Cold start troubles - jesusyi123z32 19:15:43 02/04/15 fill in your profile with more detail. What exactly does the - ZUL8TR 08:01:11 02/05/15 ^What he said - -Grimm- 11:26:22 02/05/15 Oil - aquariuscsm 22:15:06 02/05/15 Re: Cold start troubles - jesusyi123z32 12:08:13 02/06/15 Re: Re: Cold start troubles - jesusyi123z32 07:45:09 02/11/15 as long as nobody responded to a post you can delete - ZUL8TR 05:32:56 02/07/15 Re: Cold start troubles - zromtech 13:29:58 02/07/15
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