CEL issues
#16
Instructor
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Location: ATL
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#18
Race Car
From what I was told, a scanner or diagnostic machine can not actually pinpoint a problem component, only tell what is out of range possibly indicating the fault.
#19
Race Car
You have been told wrong. Voltage and voltage range along with temperature reading and calculated load is all you need to know if it is working. Nothing mystical about the sensor.
#20
You might try cleaning the MAF first. Here is what I had when I sorted mine.
http://heelix.multiply.com/journal/i...is_on_update_1
http://heelix.multiply.com/journal/i...ack_of_the_MAF
http://heelix.multiply.com/journal/i...the_MAF_sensor...
http://heelix.multiply.com/journal/i...is_on_update_1
http://heelix.multiply.com/journal/i...ack_of_the_MAF
http://heelix.multiply.com/journal/i...the_MAF_sensor...
#21
Race Car
I would like to know before I install the new MAF and waste my money.
#22
Burning Brakes
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Tippy I just finished using the Durametric had some fault codes which it does narrow down your troubleshooting time, I had on o2 sensor fail which showed an almost infinite resistance and the other was my MAF voltage went flat at .97V at any throttle setting, so changed it out. It is a must have for me.
#23
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OK It turns out that the CEL came on because of a leak in the brake booster hose. That part is not in the US and it has to be ordered from Germany. Oh well a week or so and we will see if that was the problem.
If any one wants to buy a MAF let me know.....
If any one wants to buy a MAF let me know.....
#25
Three Wheelin'
#26
Thanks, I did use that site when I ordered/replaced my MAF. Great information!
This is what that site says:
So is the hot film MAF and the MAF two separate devices? Or is the component called the hot film mass air flow sensor and mass air flow sensor later used in the paragraph means those two terms are interchangeable?
Durametric shows two readable values, air mass and hot film MAF. My air mass at idle is ~13.25 kg/h and my hot film MAF at idle is ~1.33 V. Not sure how to apply the kg/h, but my voltage being 1.33 V should relate to what, the 9-7 V range of the operating voltage or the 0-5 V range of the output sensor?
This is what that site says:
The hot film mass air flow sensor is fitted in the air cleaner housing at the outlet of the air cleaner. The operating voltage range is 9 -7 Volt, and the output voltage of the mass air flow sensor (voltage to the DME control module) lies between O and 5 Volt.
Durametric shows two readable values, air mass and hot film MAF. My air mass at idle is ~13.25 kg/h and my hot film MAF at idle is ~1.33 V. Not sure how to apply the kg/h, but my voltage being 1.33 V should relate to what, the 9-7 V range of the operating voltage or the 0-5 V range of the output sensor?
#27
Drifting
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get a tube in one ear and go along the brake booster cable with the other end of the tube and pin point the leak. Then tape around it at that point until your new part arrives from Germany. At least you will know in advance if you wasted your money sending off for as part that you may not have needed. Good luck.
#29
My guess...
I'd like to see a follow up also, if for no other reason than to reverse my pessimism.