Flashing red light; A17 staying on

s300 and SManager software questions & answers
vogue_em1
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Joined: Thu Aug 27, 2020 8:59 am

Re: Flashing red light; A17 staying on

Post by vogue_em1 »

Version is 2.7.5.0

Yes i have been uploading calibrations.

I've attached current calobration and datalog as well.
I can't datalog a/f because if i connect my wideband to D10 the enigine stalls and if i connect to d14 it runs really rough and sometimes stalls
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Sept 15.s3d
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B18C 9.5 to 1 GTX3071 Gen 2.skl
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Spunkster
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Re: Flashing red light; A17 staying on

Post by Spunkster »

You may need to use a different ECU if this is the case as it sounds like the ECU may be damaged.

The only other possibility is that you are not wiring it to the pins you say you are. The pinout can be found at: http://www.hondata.com/help/smanager/ecuconnectors.htm
vogue_em1
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Joined: Thu Aug 27, 2020 8:59 am

Re: Flashing red light; A17 staying on

Post by vogue_em1 »

I’ll try another ecu again and see what happens. The wiring for the wideband is definitely correct.

Thanks for your help
vogue_em1
Posts: 14
Joined: Thu Aug 27, 2020 8:59 am

Re: Flashing red light; A17 staying on

Post by vogue_em1 »

I have swapped the s300 board into a new ecu. The only issue this fixed is I can now hook up my wideband to d10. With the old ecu the eld sensor was always reading voltage even with it completely disconnected, now it seems to be reading fine connected to the wideband and reads 0 when disconnected. However, the car still runs really rough and sometimes stalls when in openloop but runs fine in closed loop. The other this is the red light still flashes but ONLY when connected to my laptop AND SManager is open. If I close sManager the red light stops. I can’t remember if I tried closed loop in the old ecu
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Spunkster
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Re: Flashing red light; A17 staying on

Post by Spunkster »

IS it taking changes you are making using the new ECU? For instance if you set a rev limit of 2000 RPM, does it rev limit at 2000 RPM?
vogue_em1
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Re: Flashing red light; A17 staying on

Post by vogue_em1 »

So I tried changing the idle in closed loop and it worked fine. When I changed to open loop it leans right out(well out of range) I had to add 20% to the fuel map 3 times in order for the a/f to come back to normal. Light still flashing red. Why do I have the flashing red light?
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Spunkster
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Re: Flashing red light; A17 staying on

Post by Spunkster »

Don't worry about what the light is doing if it is allowing changes as it is working as it should.
vogue_em1
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Re: Flashing red light; A17 staying on

Post by vogue_em1 »

Ok. Is having to add that much fuel in open loop to get it to idle a normal thing?
DaX
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Re: Flashing red light; A17 staying on

Post by DaX »

vogue_em1 wrote: Thu Sep 24, 2020 1:36 pm Ok. Is having to add that much fuel in open loop to get it to idle a normal thing?
That depends on what calibration you have loaded and what your setup is. It is entirely possible. Time to get it professionally tuned.
vogue_em1
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Re: Flashing red light; A17 staying on

Post by vogue_em1 »

DaX wrote: Fri Sep 25, 2020 4:26 am
vogue_em1 wrote: Thu Sep 24, 2020 1:36 pm Ok. Is having to add that much fuel in open loop to get it to idle a normal thing?
That depends on what calibration you have loaded and what your setup is. It is entirely possible. Time to get it professionally tuned.
Thanks Dax, looks like that’s the plan now.
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