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Rb20Det No Injector Pulse

Vl1996

By Vl1996,
in Engines & Forced Induction

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Vl1996 Newbie

Vl1996

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Hey guys, bought a vl with a rb20det in, with only the wiring left to do, ive wired it all up and followed diagrams, everything works fine, except no injector pulse, i have spark and fuel pump primes, i have power to injectors but the computer is not earthin the injectors, it runs on aerostart, i can manually earth the injectors an it works fine, so does this rule out a CAS and ignitor? Any help is greatly appriacted.

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https://www.sau.com.au/forums/topic/407726-rb20det-no-injector-pulse/
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Vl1996 Newbie

Vl1996

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Ive tryed 2 ecus, one a mines garenteed computer has a plaque on it, anyone know anything about them? And they both do the same, no injector pulse but spark, i guess ill have to source a computer. There was a couple wires that he hooke up major dodgedly.

Vl1996 Newbie

Vl1996

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Can anyone help with the wiring, if the ecu is sparking but wont earth the injectors out what rlse could it be, i can pulse the injectors via grounding out the pins in the back of the ecu. What else would the ecu need to pulse the injectors, usually when a cas fails it drops both spark and pulse?

Vl1996 Newbie

Vl1996

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Nah mate just standard injectors, as far as i know everythings standard its auto i dunno if that makes a difference, just wanna get it running to sell before rego runs out, the only thing i can think of is bad earths but ive been trough and supplied new earths to every earth i can find, all have low resistance to the body. Its doing me head in, does the ignitor have any input to the injectors?

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