What resistance does OBD1 ecu expect from injectors?

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04-29-2003, 09:59 PM

hybridb18

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What resistance does OBD1 ecu expect from injectors?

does anyone know what resistance OBD1 ecu's expect from injectors?

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04-29-2003, 10:25 PM

hybridb18

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Re: What resistance does OBD1 ecu expect from injectors? (hybridb18)

ok, i found on hondata's website it says that the ecu expects 10 ohms. Then why are most stock 240cc injectors read about 12-13 ohms? Or is hondata wrong?

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04-29-2003, 10:54 PM

Sonny

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Re: What resistance does OBD1 ecu expect from injectors? (hybridb18)

The resistance value is a minimum value.

Most peak and hold injectors are 2.5 to 3 ohms. The Honda resistor boxes are 6 to 8 ohms. The ECU expects to see as little as ~8-9 ohms. I've used that combo (DSM injectors [2.5 ohms] + resistor box [6 ohms] = 8.5 ohms) with no trouble. I've used stock Honda injectors (12 ohms) with no problems. The RC 440's that I ran were 16 ohms. No problem there either.

Sonny