Cold Start Problems & the K-Jet Fuel Mixture Adjustment Screw - duty cycle voltage ?
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From: Petaluma, California
1990 300e 3.0L
Cold Start Problems & the K-Jet Fuel Mixture Adjustment Screw - duty cycle voltage ?
I got my 300e back from the tranny shop recently, but the power seems to be a lot less - and now I'm having cold start problems. I turn the key the first time and give it gas but it always dies on the first start like it's not getting fuel, then starts on the 2nd turn just fine. I think some one at the shop messed with my fuel distributor adjustment ; as shown here:
http://www.landiss.com/mixture.htm
...because they told me they 'got it running better', but it seems a lot worse.
I have a voltage meter, but it does not have a duty cycle feature - does anyone know the approx. voltage it's supposed to sit at during idle since I cannot read the duty cycles?
I know there is this this method:
If you have an oscilloscope to measure this timing, fine. If not, it can still be estimated with a voltmeter. Since continuous "0 volts" would be considered 100% and continuous 13.6 V would count as 0%, just measure the voltage between pins 2 and 3 of X11 and divide that by 13.6. Next subtract that ratio from one, and convert the result to percent.
For example, if the meter reads 4.0 V, first divide 4.0/13.6 = 0.294. Subtract 1.0 - 0.294 = 0.706, or 71%. In equation form:
Duty Cycle = [1 - (V{pin 3}/V{max})] x 100%
But I don't know what it's supposed to be at (% wise) and it would be so much easier to just know the voltage it's supposed to read, as I am using a simple voltmeter.
Thanks in advance !!
http://www.landiss.com/mixture.htm
...because they told me they 'got it running better', but it seems a lot worse.
I have a voltage meter, but it does not have a duty cycle feature - does anyone know the approx. voltage it's supposed to sit at during idle since I cannot read the duty cycles?
I know there is this this method:
If you have an oscilloscope to measure this timing, fine. If not, it can still be estimated with a voltmeter. Since continuous "0 volts" would be considered 100% and continuous 13.6 V would count as 0%, just measure the voltage between pins 2 and 3 of X11 and divide that by 13.6. Next subtract that ratio from one, and convert the result to percent.
For example, if the meter reads 4.0 V, first divide 4.0/13.6 = 0.294. Subtract 1.0 - 0.294 = 0.706, or 71%. In equation form:
Duty Cycle = [1 - (V{pin 3}/V{max})] x 100%
But I don't know what it's supposed to be at (% wise) and it would be so much easier to just know the voltage it's supposed to read, as I am using a simple voltmeter.
Thanks in advance !!
