Car is a 2004 RSX-S
Mods: RBC intake manifold, Hybrid Racing CAI, Ktuned 72mm TB, Megan shorty header, Hondata V4, Hasport mounts.
In the datalog you can see right at 2min 20seconds when I go WOT, the A/F ratios start spiking like crazy and it causes a fuel cut like symptom.
No codes are stored and no MIL comes on. Anyone seen this before? or has any tests I could run to help diag? Thank you in advance.
Crazy A/F ratios causing fuel cut like symptom
Crazy A/F ratios causing fuel cut like symptom
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Re: Crazy A/F ratios causing fuel cut like symptom
Sorry! forgot this info~
Car: US 2004 DC5-s
KPRO: KRPO V4
Software version: V4.4.3.0
Build: Windows 10
ECU Part Number: dont have available atm, will get it asap
Calbration: Attached
Got Kpro from church automotive in socal
Car: US 2004 DC5-s
KPRO: KRPO V4
Software version: V4.4.3.0
Build: Windows 10
ECU Part Number: dont have available atm, will get it asap
Calbration: Attached
Got Kpro from church automotive in socal
You do not have the required permissions to view the files attached to this post.
Re: Crazy A/F ratios causing fuel cut like symptom
You are decelerating at 2:20 and it is completely normal for the AF ratio to go full lean at this time.
Re: Crazy A/F ratios causing fuel cut like symptom
Sorry, im talking about the spiking in A/F at WOT around 2:25-2:30. I uploaded a screenshot where you can better see what im talking about.
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Re: Crazy A/F ratios causing fuel cut like symptom
Those are between shifts when you are letting off the throttle.
Re: Crazy A/F ratios causing fuel cut like symptom
Im talking about these zones, not where selection line is
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Re: Crazy A/F ratios causing fuel cut like symptom
It is something to do with the way you have remapped the fuel table rpm index and then difference between the low and high speed fuel tables. Look at the fuel injector change at VTEC and how leans it runs at VTEC on the high cam.
Hondata