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EFi injectors


zoltan
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If you are using the standard EFi injectors with the standard resistor pack do you set the PWM Time Threshold to 25.4 msec, and the

PWM Current Limit to 100%?

The injectors are from a 3.5 EFi flapper and measure in around 4 ohms

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If you are using the standard EFi injectors with the standard resistor pack do you set the PWM Time Threshold to 25.4 msec, and the

PWM Current Limit to 100%?

The injectors are from a 3.5 EFi flapper and measure in around 4 ohms

zoltan, HFH and I have had a small chat about injectors and flapper injectors came up... The general opinion was to fit later hot wire injectors and save your self a lot of trouble. I'm sure HFH and others will be along to give full explanations later but it's the resistor pack that's the problem.

jeff

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Thanks.

I brought home from work a manifold with a pair of SU's to hang over the ECU tonight, just so that it knows it is for the chop if it doesn't behave.

Shame if they can't be used as I have now three sets of them :(

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If you are using the standard EFi injectors with the standard resistor pack do you set the PWM Time Threshold to 25.4 msec, and the

PWM Current Limit to 100%?

Yes, because the resistor pack makes them look like high impedance ones to the MegaSquirt. If you removed the resistor pack you'd need set PWM up.

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  • 3 weeks later...

I've never seen a resistor pack die, ever, on many vehicles. If you have them fitted, leave them. One thing that I have noticed is that low impedance injectors with packs have larger dead time then when PWM'd or compared to high impedance.

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I've never seen a resistor pack die, ever, on many vehicles. If you have them fitted, leave them. One thing that I have noticed is that low impedance injectors with packs have larger dead time then when PWM'd or compared to high impedance.

Die ? - No I agree

BUT

The molex plug / socket is one of the nastyest Lucas made, and is hugely prone

to damp / water / connection probs if used in mud / water

Nige

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