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Old 05-22-2019, 10:31 AM   #1
Quay02TypeS
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K24 RSX-S running lean

Hey guys, I am new here but I have a 2002 RSX-S with an 04 k24a2. I've changed my map sensor, tps, and o2 sensor but the car afr goes from 16 to 20. Ive also checked all my vacuum hoses (i am running an rbb intake manifold) and they are fine. Yes i have kpro Help Please!!!
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Old 05-22-2019, 11:41 AM   #2
mfarmakas17
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mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx
Provide more detail and someone might be able to assist you.

How did this start?
Do you have bolt ons?
Are you running the proper tune?
What gave you the impression that the above sensors needed to be replaced?
Etc etc
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Old 05-22-2019, 12:07 PM   #3
Quay02TypeS
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Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx
Car is fully bolt PLM Header, short ram intake, ebay exhaust piping with apexi muffler, and 255 fuel pump. Car starts up fine for about 3 secondw then idles bounces from 300-500 and cuts off. It is on the stock tsx basemap. No CEL lights were on or then. Maybe a bad pcv valve?
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Old 05-22-2019, 12:30 PM   #4
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mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx
I don't see how a bad PCV valve could cause this.
This just randomly started? It sounds like you have a fuel problem.
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Old 05-22-2019, 01:10 PM   #5
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Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx Quay02TypeS is a jewel in the rough of c-rsx
It just randomly happened. I was driving home parked the car. Went to start it and it ran rough and kept cutting off
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Old 05-22-2019, 01:23 PM   #6
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mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx mfarmakas17 is a jewel in the rough of c-rsx
I would start with a fuel pressure test.
Can you hear the pump when you turn on the ignition? What does your short term fuel trim show right before it dies?
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