Cold Start AFR Tuning
I've had this issue for longer than I can remember and have not yet figured it out. I've tried lots of mechanical fixes but nothing has worked. Here's what's happening:
On cold starts my car lopes and shakes a lot while in open loop. I'm not throwing any codes. Once the car switches over to closed loop it runs perfectly. While it's loping and shaking the RPMs vary a bit, the interior and exterior lights all dim variably and of course its rather embarassing.
I see we have the ability to change Cold Start AFR with a subtractor. I know you want to run a little rich on start ups, but what's a good AFR to start with? And could this be the only problem? If anyone else has any experience with this whether it's tuning or otherwise I'd very much appreciate some help.
Chris
(Attached is my tuning file, most of which is stock)
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