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S300 Closed Loop Problem

Posted: Sat Nov 02, 2019 2:34 am
by bruc
Hi guys. I have problem with closed loop in S300 manager. Car was tuned in open loop, and all works perfect. Problem is when I switch to closed loop, car start to shake, rpm drops, car goes full lean and dies. I tried all options, even tested on another ecu, but problem is the same! Can someone help me with this problem?

- Hondata s300 v3 serial number : 46474
- Smanager ver. 2.7.3.0
- Ecu P28 USDM

- Honda civic EG D16Y7 turbo
- Hondata 4 bar map sensor
- Speedfactory 3 port boost controller
- Aem 30-4110 wideband
- D14 wideband input
- Grams 750cc injectors
- Grams 350 fuel pump
- 45 psi base fuel pressure

Re: S300 Closed Loop Problem

Posted: Wed Nov 06, 2019 12:20 pm
by Spunkster
Don't use D14 as the input. Instead us the D10 or one of the other inputs if your ECU has the needed components.

Re: S300 Closed Loop Problem

Posted: Thu Nov 07, 2019 8:10 am
by bruc
Thanks. Will try today and give you feedback.

Re: S300 Closed Loop Problem

Posted: Sat Nov 30, 2019 3:21 am
by murgy
Have any luck with this?
My tuner couldn't get this to work either whenever he turned it on it went 20% lean, so just left it open loop

Re: S300 Closed Loop Problem

Posted: Wed Dec 04, 2019 5:19 am
by boofman11
I could never get closed loop to work correctly either, it works much better in open loop