[rickcioppa]

I have been having a stalling issue with my 2010 Kia Forte EX 2.0. I have checked the MAP, cam shaft and crankshaft position sensors , battery good, oil pressure good, No CEL. Seems to stall when deacceleration, starts right up after.
I was able to capture OBD2 logging when it failed. Anybody got any ideas? You can see where it stalls by RPM, any help will be appreciated

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[ForteGT2]

How many miles on car, Is the MAP original? How did you "check the MAP sensor"? No codes stored?

It is not unusual for a bad MAP NOT to cause a DTC code.

 

[ForteGT2]

Have you accomplished a compression test?

How To Perform a Compression Test - EricTheCarGuy - YouTube

 

[rickcioppa]

Thanks GT2,
Yes compression is good and I did a leak down test which was good, I checked the voltage coming out of the sensors and they were good, Just to make sure I installed a new one from amazon. 155k on the engine.

 

[ForteGT2]

Trying to understand the odd number (57) in both pictures - is this the Intake MAP sensor (all I see is Intake Ma)?

 

[rickcioppa]

it's Intake Manifold Pressure(kpa)

 

[rickcioppa]

and the short term fuel trim went from +5 to -11

 

[ForteGT2]

Get a new factory MAP sensor. Can't hurt.

 

[SPM Garage]

Just wondering why the timing advance went up as the idle went down...

 

[kiaguy007]

Try a test of shifting into neutral as you're approaching a stopping point to find out if it continues to stall with the transmission in N. If it does keep on stalling, then try N again, and see if it will stay running with no hesitation if you give it a bit of fuel to keep the revs up as you're bringing it to a stop.