odd fuel cuts

[Jdogg]

I have been having issues with an odd fuel cut.. if i'm accelerating at around 50ish % throttle, then let off just a bit, i get a fuel cut.

I have played with the overrun delay.. moved it from 10 to 300 with no real change. Every once in a while i'll get a similar cut even if I dont let off the gas. as far as I can tell there are no other overrun or throttle dependent things that are tunable for this car.

I dont see anything going on in the data logs that would cause this to happen as far as sensor inputs, but I can clearly see the fuel being cut.

I posted my cal and a data log, any help would be appreciated.

you can see the cuts 14 sec 16 sec 37 sec 39.7 sec and at 2:00:7

[Hondata]

We've tested your calibration in our vehicle and it works ok. Try to reproduce the problem with a return to stock calibration. The only other thing I can think of is that the brake sensor is giving a signal upon throttle off and the throttle/brake interlock is cutting the engine.

[Jdogg]

Fuel shouldn't cut when I go from 60% down to 30%.. There are also cuts when I'm accelerating and not lifting.

I don't have the stock intake so going back to the stock calibration isn't really possible. If it was purely due to letting off the throttle I would expect the overrun delay to change things but it doesn't

[Jdogg]

any other ideas here guys.. this is getting reallllllllly annoying.

[Hondata]

Try to reproduce the problem with a return to stock calibration. Even with an aftermarket intake you should be safe as part throttle.

[Jdogg]

I have no provisions for the maf

[Jdogg]

Got another datalog showing the fuel cut. Its at 2:26

It did it coming off idle twice today and actually stalled the car.

[Jdogg]

I put the ecu back completely stock, then re installed the flash pro and modified the stock equiv base cal just enough so the car would run.. same issue.

[Spunkster]

WHat model and year is your car?

[Jdogg]

12 si

[Hondata]

You have an non-stock intake manifold. What else have you changed in the intake system (throttle body, intake tube etc)?

[Jdogg]

I have a 3.5inch cold air intake with no afm, stock throttle body, RBC and full race exhaust, stock exhaust still.

[Hondata]

It is because you have removed the AFM.

[Jdogg]

So can't you guys fix it? I'm not tuning with the AFM so why does it still look for it?

[Hondata]

At this point we're not sure if the ECU will allow the AFM to be completely removed.