Mass Air Meters 1.8, Ideas |
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Mass Air Meters 1.8, Ideas |
nowlings |
Jul 11 2007, 06:52 PM
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#1
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Newbie Group: Members Posts: 28 Joined: 21-March 07 From: sacramento Member No.: 7,615 |
Does anyone know of the serviceability of the mass air meter for the 1.8L. Im sure this was probably covered before, but I couldn't find it using the search feature. Has anyone tried with success to file down the areas where the flap door inside the meter sticks when it moves through its range of motion. I wasn't sure if this still allows unmetered air through causing further driveability issues. Are there any meters out there that interchange with the 1.8L porsche application. These things are still expensive even if they are rebuilds. Thanks for any recommendations or feedback. (IMG:style_emoticons/default/beerchug.gif)
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Katmanken |
Jul 11 2007, 07:20 PM
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#2
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You haven't seen me if anybody asks... Group: Members Posts: 4,738 Joined: 14-June 03 From: USA Member No.: 819 Region Association: Upper MidWest |
The flaps aren't supposed to stick. Your box may have experienced a backfire through the intake which bent the flap.
There are similar air metrers on various cars, but they are tuned for the volume of air for that car, and may have different connections. Some time with a volt ohm meter (VOM) to measure the resisitance across a series of flap angles might give you a resistance curve for your box and a trip to a junkyard with your VOM and measurements might turn up a similar box. Ken |
nowlings |
Jul 11 2007, 07:37 PM
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#3
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Newbie Group: Members Posts: 28 Joined: 21-March 07 From: sacramento Member No.: 7,615 |
That's a good idea with the VOM... I am sure that the lean backfire is the source of the problem as well as some of the used MAFs that Ive looked at. The number of vacuum hoses and connections was not helpful for this set-up.
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Brando |
Jul 12 2007, 01:12 AM
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#4
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BUY MY SPARE KIDNEY!!! Group: Members Posts: 3,935 Joined: 29-August 04 From: Santa Ana, CA Member No.: 2,648 Region Association: Southern California |
It's not a MAF sensor, it's an Air Flow Sensor.
MAF sensors use a heated core element and air passing over it 'cools' the element, telling the engine management system volumetrically how much air is passing through into the intake manifold. The AFS on L-Jetronic uses a 'door' that moves contacts across a board, changing voltage and telling the ECU how much air volumetrically is passing into the intake manifold. That explained... The door on yours should not stick. Look at getting a replacement. I don't know if there is a place that rebuilds them but doing it yourself is not a feasible task. |
Al Meredith |
Jul 12 2007, 12:51 PM
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#5
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Senior Member Group: Members Posts: 960 Joined: 4-November 04 From: Atlanta, ga Member No.: 3,061 |
JC Whitney has these sensors in their VW book. How you know which one is interchangable with the 914 I don't know
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Brando |
Jul 12 2007, 02:35 PM
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#6
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BUY MY SPARE KIDNEY!!! Group: Members Posts: 3,935 Joined: 29-August 04 From: Santa Ana, CA Member No.: 2,648 Region Association: Southern California |
Look at yours to see how many pins in the side of the air flow sensor.
You will also have to calibrate it for your engine (all are different). |
dr914@autoatlanta.com |
Jul 12 2007, 02:43 PM
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#7
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914 Guru Group: Members Posts: 7,885 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
buy a rebuilt one. May suppliers have them for 165 and they are the proper calibrated part
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nowlings |
Jul 12 2007, 06:38 PM
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#8
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Newbie Group: Members Posts: 28 Joined: 21-March 07 From: sacramento Member No.: 7,615 |
thanks for the suggestions all, I guess 165 for part isn't too bad as long as I do everything right to prevent from happening again.
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jim_hoyland |
Jul 12 2007, 09:44 PM
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#9
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Get that VIN ? Group: Members Posts: 9,313 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California |
I had mine rebuilt. (IMG:style_emoticons/default/agree.gif) $165 is a good price.
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