S300 loosing calibration after ignition off

s300 and SManager software questions & answers
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L-BB2
Posts: 2
Joined: Sat Mar 01, 2014 1:34 pm
Location: Switzerland

S300 loosing calibration after ignition off

Post by L-BB2 »

Hello,

I am desperately looking for support as my ECU/S300 is not working properly any more:

After a longer standstill period I started up my Honda Prelude again. Wondered, that the calibration got lost and I had to upload it. Did so, and the engine started. Then I regognized, that after turning ignition off (and on again) I got CEL and was not able to start the engine any more. Made a download of the calibration - see attachment.
I am able, to upload calibration again: CEL goes off and I am able to run the engine. But again I loose the setting after ignition off.
It seems, that the S300 is loosing the calibration each time when ignition is switched off.

So I tried to erase ECU. Took a long while for the bar to go through. At the end message appeared, that ECU could not have been erased.
I had some Datalog files on the ECU. Tried to delete as well. First, it looked like I had success. But after switching ignition off and on again, they appeared again in the SManager.

First, I tried with SManager 2.2.7, then updated to 2.2.8.

S300 Ser.No.: 12796; Firmware Ver.1.04

Car is a 1992 Honda Prelude. Engine is a H23 VTEC.
P72 USDM ECU with Hondata S300
- ECU prepared for Analog Input 1 (EGRL D12): Capacitor 0.1uF in C42
- ECU prepared for Analog Input 2 (B6): R2 & R3 removed
- ECU prepared for Wideband Lambda Input (ELD D10): R136 & R138 removed
- Wideband Lambda Innovate Motrosports LC1
- Analog 1 as narrowband connected to O2 in D14 (original cable removed)
- Analog 2 as wideband connected to ELD (D10)
- Exhaust Gas Temperature Measurement: PLX Devices

This setup was running before the standstill period. Now, I treid with my map, as well as with a new map from the templates (stockjdmp72.skl). All with same effect: Lost calibration after ignition off.

Looking forward for your feedback.

Best regards,

Lars
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Spunkster
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Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: S300 loosing calibration after ignition off

Post by Spunkster »

Send an email to support <at> hondata.com with the following and I will issue an RMA and give you further
instructions (include a link to this thread):

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L-BB2
Posts: 2
Joined: Sat Mar 01, 2014 1:34 pm
Location: Switzerland

Re: S300 loosing calibration after ignition off

Post by L-BB2 »

Done.
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