S300 Socket Testing Problem

s300 and SManager software questions & answers
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hayhursm
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Location: Indiana

S300 Socket Testing Problem

Post by hayhursm »

I purchased a Hondata S300 & P28 ECU from an authorized vendor and could not connect to it with my laptop. I then decided to purchase the socket tester and when I installed it (in the same orientation as shown on the Hondata website) none of the LEDs would light up with the ignition key in the on position. I have a 2000 Civic Si and I am using the OB2b adapter harness if that helps. Any suggestions?
HONDA GHANDI
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Post by HONDA GHANDI »

Was this a known good ecu to begin with? Will the car start on the stock ECU when the Hondata and adapter harness is removed?
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hayhursm
Posts: 18
Joined: Thu Apr 05, 2007 9:23 pm
Location: Indiana

Post by hayhursm »

I?m not sure if the ECU was good, the Hondata S300 was already installed in the P28 when I purchased this system. Yes, the vehicle would start when the stock ECU was installed.
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Spunkster
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Post by Spunkster »

Post a picture of your adapter harness. Did you purchase an OBD2a or OBD2b adaper harness?
HONDA GHANDI
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Post by HONDA GHANDI »

oooh, Good call, forgot about that.
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hayhursm
Posts: 18
Joined: Thu Apr 05, 2007 9:23 pm
Location: Indiana

Post by hayhursm »

I'm using the OBD2b harness. I will post a picture tonight after work.
hayhursm
Posts: 18
Joined: Thu Apr 05, 2007 9:23 pm
Location: Indiana

Post by hayhursm »

Here is a pic of the OBD2b adapter harness
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2000 Civic Si OBD2b adapter harness for S300
2000 Civic Si OBD2b adapter harness for S300
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Spunkster
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Post by Spunkster »

Judging by the fact that the adapter harness has been cut and spliced together, I would suspect a problem with the adapter harness or there has been some change in the vehicle harness. It sounds like your ecu is not getting any power.
hayhursm
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Joined: Thu Apr 05, 2007 9:23 pm
Location: Indiana

Post by hayhursm »

I ordered the harness from horsepowerfreaks.com and the harness came from Hondata directly. I have not altered the vehicle harness in anyway except put GM Weatherpack connectors in place of the OEM injector connectors so I can use the FJO injector driver. I'm hoping to find someone locally that I can test my Hondata system in their vehicle.
hayhursm
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Joined: Thu Apr 05, 2007 9:23 pm
Location: Indiana

Post by hayhursm »

I dug a little deeper into this problem and discovered that none of the connector pins going into my ECU are reading 12 Volts; the pins were tested at the actual harness and not the adapter harness. I looked for ECU fuses but could not find any?any clues as to what might cause this?
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Spunkster
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Post by Spunkster »

What has been done to this vehicle?
hayhursm
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Post by hayhursm »

As far as electrical modifications I clipped the fuel injector connectors and installed GM Weather Pack connectors in their place to run an FJO injector driver. I have not installed the injector driver yet so there is no connection on the injector connectors. The SRS unit has been removed but I have driven the vehicle before without that. Would leaving the injectors unplugged be the problem?
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