Subject	might just be the ECU cold-start timing
Posted by	zromtech on September 13, 2013 at 11:06 AM
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In Reply To	Cold Start Hesitation posted by CO_Engineer on September 11, 2013 at 07:36 PM
Message	This behaviour could also just be the ECU cold-start ignition timing. On cold-starts the ECU uses different maps and retards the ignition timing quite a bit below ~2500rpm until the coolant temp hits 55°c. The colder it is, the more the timing is retarded. This is most likely to help heat up the cats/turbos faster in cold conditions. Try logging your ignition timing and coolant temp via Consult and see if the hesitation instantly goes away at 55°c.
Follow Ups	Cold Start Hesitation - CO_Engineer 19:36:57 09/11/13 good PM will keep your car running at optimum... - Medallion Man 03:02:08 09/12/13 Also check the ING Coil relay, for corrosion on pins. (n/m) - Medallion Man 05:05:24 09/12/13 When you check and clean the connectors fill with >>> - ZUL8TR 15:19:30 09/12/13 what they all said - 300ZMang 21:08:33 09/12/13 might just be the ECU cold-start timing - zromtech 11:06:57 09/13/13 Stop on by and I can look it over, hook up the laptop, etc. - Woody75 (Denver) 12:07:11 09/13/13
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