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Problems starting up the car

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doodie

20+ Year Contributor
1,025
1
Aug 11, 2002
Brooklyn, New York
I just recently put in 550cc injecotors in my car and a Keydiver chip to run the 550's. I have my SAFC set at -10% across the board for the high settings. On the first few days, the car started up fine and for a few times, it cranks right on in less than a second.

Now, when the engine is cold, it takes a while to crank the car on. And when it finally turns over, it stumbles to stay on and takes a few seconds to idle like normal. Does it sound like I have a leak somewhere? It almost seems like I'm not getting enough fuel pressure or something. The car runs great and better than ever but its just the start up thats getting bad.
 
interesting thing happened just before. I plugged in the pocketlogger and it showed the Short-terrm Fuel trim to be around -5% to -6% and the car was idling like total dookie. I used the SAFC and leaned out the LO-Settings to -3% and the pocketlogger showed that its 0'd out.

Am I having such a hard time starting up the car because its dumping so much fuel in on ignition that its blowing out the spark?
 
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