LMM Weird Start

1dyer9

New member
When its cold out and I make the first start of the day either autostart or normal with the key the pickup will fire up run for 10-15 seconds then like bog down and rev back up then it is fine. Yes I have changed filters and have good fuel its done it now for a good 6 months probably and just very gradually has gotten worse. My injectors bal rates last month all looked good worst one was -1.2. bad fpr or leaky injectors?
 
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