Codes P0172 and P0175, stumbles in park and at high RPM's

Tiny
PALOMBA16
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Just changed all fuel injectors and no change. It's got to be the pcm causing this. On a different I also have a 03 liberty and runs and drives fine, but pulling transmission codes. 1775, 870, 987 how many pressure switches on thus thing. 1 code says switch B and another switch E. The on on passenger side rear looks like its brand new and the 2 on the driver side are different sensors. Are these what I need to change the driver side sensors.
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Wednesday, February 10th, 2021 AT 9:59 AM
Tiny
JACOBANDNICKOLAS
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Hi,

I need to ask a favor. Can you copy and paste your new question to a new thread? We try to keep the threads specific to one topic. I hope you understand.

https://www.2carpros.com/questions/new

Take care,

Joe
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Wednesday, February 10th, 2021 AT 1:40 PM
Tiny
PALOMBA16
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My bad, done.
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Wednesday, February 10th, 2021 AT 4:10 PM
Tiny
JACOBANDNICKOLAS
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No problem. Thanks for doing it.

Joe
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Wednesday, February 10th, 2021 AT 7:24 PM
Tiny
PALOMBA16
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PCM reprogramming done and still no change. Still p0172 and p0175 and running bad. Could this all end up being a head gasket?
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Friday, March 12th, 2021 AT 12:05 PM
Tiny
JACOBANDNICKOLAS
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Hi,

Anything is possible, but you should be able to tell. You can either perform a compression test (link 1) or check the indicators in the second link below.

https://www.2carpros.com/articles/how-to-test-engine-compression

https://www.2carpros.com/articles/head-gasket-blown-test

Let me know.

Joe

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Friday, March 12th, 2021 AT 6:14 PM
Tiny
PALOMBA16
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I do notice that it smells of fuel bad. No leaks, but it's just running very rich. I just need to figure out why it's running so rich. New fuel injectors pump filter and regular all in one.
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Tuesday, March 16th, 2021 AT 1:44 AM
Tiny
JACOBANDNICKOLAS
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If the fuel pressure is good and the injectors are new, do me a favor. Check the engine coolant temperature sensor's signal You will need a live data scan tool for this. If the sensor indicates an extremely cold temperature, it will cause a much richer fuel mixture.

Also, let me know what the short term fuel trims are.

Joe
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Tuesday, March 16th, 2021 AT 6:34 PM

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