Procedure CO2 % setting

[Bitsyncmaster]

Sorry for the delay, if I have to multiply the standard permanence values by 1.1 the values on the digital device are:

Range by manual:

35?-45? dwell analog

38,85%(35?x1,11) - 49,95%(45?x1,11)

Its correct?

Thaks



Inviato dal mio Redmi Note 8T utilizzando Tapatalk

Correct, but remember your meter is probably inverted. If so your looking to center around 56%. You can verify inverted hitting the WOT switch and if inverted you will read 40%, if not inverted you would read 60%

You may be able to hook your meter up backwards if inverted. (red lead to ground, black to signal)

[alexdmc1]

I took the test. however, the reading remains fixed instead of fluctuating (around 95%). if I remove the connector from the ground the multimeter oscillates. maybe I need to use a correct tool instead of a multimeter.

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[Bitsyncmaster]

I took the test. however, the reading remains fixed instead of fluctuating (around 95%). if I remove the connector from the ground the multimeter oscillates. maybe I need to use a correct tool instead of a multimeter.

Inviato dal mio Redmi Note 8T utilizzando Tapatalk

Does you frequency valve buzz?

[alexdmc1]

Does you frequency valve buzz?

I finally purchased a digital dwell, I'll do some tests again over the weekend. Can you tell me how I can test the frequency valve? A thousand thanks

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[82DMC12]

I finally purchased a digital dwell, I'll do some tests again over the weekend. Can you tell me how I can test the frequency valve? A thousand thanks

Inviato dal mio Redmi Note 8T utilizzando Tapatalk

Using a dwell meter is essentially testing the frequency valve. You're checking to see what duty cycle the Lambda ECU is commanding the frequency valve to follow. If the valve is buzzing like a hornet, and your dwell meter is giving expected readings at given times, it's almost certainly working unless it's gummed up or has debris stuck in the inlet. The frequency valve itself is not a common failure item. The ground reference wire for it can certainly be an issue though.

[alexdmc1]

Hi everyone.

yes, the frequency valve buzzes, you can hear it. during the last measurement this is the result (4 cylinders):

66-67, approximately 65-67.


The idle speed is around 800 rpm.

the result obtained is not correct, right?

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[alexdmc1]

when you press WOT the value is fixed at: 54

Thanks

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[Bitsyncmaster]

when you press WOT the value is fixed at: 54

Thanks

Inviato dal mio Redmi Note 8T utilizzando Tapatalk

That proves your meter is working reading the correct value.

You normal readings should be swinging around 35 to 45 degrees on the 4 cylinder scale. So your 65 reading is telling you it needs to be adjusted.

[alexdmc1]

That proves your meter is working reading the correct value.

You normal readings should be swinging around 35 to 45 degrees on the 4 cylinder scale. So your 65 reading is telling you it needs to be adjusted.

Exactly. I adjusted the 3mm wrench counterclockwise by 1/4 turn but the measurement is still the same. it does not decrease the oscillation. could it be the oxygen sensor? I measured the resistance (ohm) between the black cable and the ground of the Delorean: 0 ohm. Is there a way to check if it works? thanks a lot to everyone

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[David T]

Exactly. I adjusted the 3mm wrench counterclockwise by 1/4 turn but the measurement is still the same. it does not decrease the oscillation. could it be the oxygen sensor? I measured the resistance (ohm) between the black cable and the ground of the Delorean: 0 ohm. Is there a way to check if it works? thanks a lot to everyone

Inviato dal mio Redmi Note 8T utilizzando Tapatalk

If adjusting the mixture screw has no effect on the dwell meter reading the ECU is in "Open Loop" meaning it is not adjusting the mixture according to the O2 sensor. Could be the motor isn't warmed up enough, the mixture screw is WAY off, or the the O2 sensor is not connected or is bad. If it is the original O2 sensor (and it is hooked up) replace it.