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Old 03-15-2008, 10:49 AM   #51
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Maybe add another row for 1996 to capture both?
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Old 03-15-2008, 11:49 AM   #52
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Edited the pic to reflect the note
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Old 03-15-2008, 03:54 PM   #53
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We should drop Curt a PM and see what his MAF is

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Old 04-22-2008, 11:24 AM   #54
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My 90 LN3 is AFH 50M 02C
Can't remember if thats the original, I'm always taking them out, cleaning, or swapping.
I'll check mom'* 88 Park Ave next time I'm over there.
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Old 04-22-2008, 11:39 AM   #55
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I don't think so, unless the -02C was intro'd in 1990. If it works, there must not be a great difference in the MAF curve between the -02A and the -02C...unless there is a difference in the emissions calibration.
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Old 04-23-2008, 09:40 AM   #56
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Now you have me wondering. I'll search my box of parts to see if I have one marked original MAF.
All I know is this one works like a champ.
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Old 04-25-2008, 10:56 AM   #57
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Default MAF

OK guys here'* what I got for 88-91.

My 90 LN3 is AFH 50M 02C This is original. The 2A produces long crank time.

Moms 88 LN3 is AFH 50M 02A - original Maf.

Form JY part in box:

91 LN3 is AFH 50M 02C

I also have a 93 02E in my box of parts. Doesn't fit any of my cars.
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Old 04-26-2008, 07:55 PM   #58
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Quote:
Originally Posted by SSEBONNE4EVA
...My 90 LN3 is AFH 50M 02C This is original. The 2A produces long crank time...
Odd, I don't beleive the maf has anything to do with startup.
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Old 04-26-2008, 09:35 PM   #59
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Yes, It can. It is the air flow meter. The older 02A design might not report air flow rates as fast at the 02C, the faster the ECM/PCM is updated with the airflow rates, which go from none, to normal in a split second...the faster the car can calibrate the correct, optimal air fuel mixture, by adding a certain amount of fuel and voila, you have a faster starting vehicle than one that maybe doesn't know the air rates as often, or possibly doesn't instantly report as soon as it gets power, possibly taking a moment to initialize. A faster updating, and more accurate current flow rate (why we clean the filament), allows for a very quickly adapting, very efficient engine...newer versions of sensors, in many different areas of the engine, and faster, more responsive PCMs are one very good reason that engines got slightly more fuel efficient, faster starting, and more responsive than their previous comparable displacement relatives.

If I'm wrong about anything I just said...guess you're gonna have to break out the wet noodle.
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Old 04-28-2008, 05:07 PM   #60
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Default Re: MAF

Quote:
Originally Posted by SSEBONNE4EVA
OK guys here'* what I got for 88-91.

My 90 LN3 is AFH 50M 02C This is original. The 2A produces long crank time.

Moms 88 LN3 is AFH 50M 02A - original Maf.

Form JY part in box:

91 LN3 is AFH 50M 02C

I also have a 93 02E in my box of parts. Doesn't fit any of my cars.
Whats a madda Sandrock? You don't trust my numba'*. Fogttaboutit.
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