S300 intermittent issue

s300 and SManager software questions & answers
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Tylenol21798
Posts: 6
Joined: Fri Dec 06, 2019 5:41 pm

S300 intermittent issue

Post by Tylenol21798 »

Blips in ecu car will read fine, but blips randomly and shows the ecu going crazy. I've attached a picture of what it does when It blips
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Tylenol21798
Posts: 6
Joined: Fri Dec 06, 2019 5:41 pm

Re: S300 intermittent issue

Post by Tylenol21798 »

Here is my map and datalog
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crluver123
Posts: 155
Joined: Tue Oct 10, 2006 10:13 pm

Re: S300 intermittent issue

Post by crluver123 »

Check the ecu grounds in the engine harness, and any other grounds you can find.
Make sure you are using Resister spark plugs (R in the plug part number, like BKR7E).
If you have a jumper harness, it may be of bad quality and have a bad wire somewhere.
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Spunkster
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Location: Hondata

Re: S300 intermittent issue

Post by Spunkster »

Post a picture of the bottom of the ECU showing the solder joints for the ECU socketing.
Tylenol21798
Posts: 6
Joined: Fri Dec 06, 2019 5:41 pm

Re: S300 intermittent issue

Post by Tylenol21798 »

It's done with rosin core solder
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Tylenol21798
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Joined: Fri Dec 06, 2019 5:41 pm

Re: S300 intermittent issue

Post by Tylenol21798 »

I'm thinking it may be a bad wire in the jumper harness, I discovered if you more the ecu the car almost dies.
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Spunkster
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Re: S300 intermittent issue

Post by Spunkster »

That sounds very likely.
Tylenol21798
Posts: 6
Joined: Fri Dec 06, 2019 5:41 pm

Re: S300 intermittent issue

Post by Tylenol21798 »

I'm getting a new one this week. I'll update you if it fixes the issue
Tylenol21798
Posts: 6
Joined: Fri Dec 06, 2019 5:41 pm

Re: S300 intermittent issue

Post by Tylenol21798 »

The jumper harness has seemed to fix the issue. Thank you guys for the help.
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