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Author Topic: M42 MAF Conversion: SUCCESS!!!  (Read 44058 times)

bmwman91

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M42 MAF Conversion: SUCCESS!!!
« Reply #75 on: November 22, 2006, 01:49:36 PM »
What country are you in?  That makes a difference in the ECU's programming.  If it has a 1995 M42 in it, then chances are the ECU ignores any input from the LLCO pin as by then I believe they were all running EGO sensors.
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bmwman91

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M42 MAF Conversion: SUCCESS!!!
« Reply #76 on: November 25, 2006, 01:06:51 AM »
UPDATE:

So...I got all the code worked out for the converter.  It has 4x the resolution of the last one, and does 1000 conversions per second (previous one was about the same).  The O-Scope came yesterday...and not a moment too soon.  After a few hours of debugging my code and figuring out which lines were messing things up, things finally worked out and all input/output combinations checked out on the 'scope.

So, now I am jsut waiting on my shipment of the remaining components to arrive from Thailand (where they are made apparently).  Everything checks out thus far, so we may be getting close!!!  Maybe this will be a merry Xmas for the M42 afterall.
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AL GReeNeRy

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M42 MAF Conversion: SUCCESS!!!
« Reply #77 on: November 25, 2006, 08:45:50 AM »
oooooohh cant wait.  your doin a great job with all this development stuff, but hurry and start FABBIN!! and they say there isnt a santa clause....
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DZick

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M42 MAF Conversion: SUCCESS!!!
« Reply #78 on: November 25, 2006, 05:35:25 PM »
Man that sounds great... i cannot wait to get one.

Keep up the good work man!!
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m3someday

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M42 MAF Conversion: SUCCESS!!!
« Reply #79 on: November 26, 2006, 12:29:28 AM »
Quote from: bmwman91;14301
What country are you in?  That makes a difference in the ECU's programming.  If it has a 1995 M42 in it, then chances are the ECU ignores any input from the LLCO pin as by then I believe they were all running EGO sensors.


i'm in Singapore. i beleive, our cars are Euro-specs. i'll keep u guys updated on the LLCO cable once i do a diagnostic next week.
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bmwman91

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M42 MAF Conversion: SUCCESS!!!
« Reply #80 on: November 26, 2006, 10:47:49 PM »
Alrighty...the last component should be in a shipment arriving tomorrow (along with extras to make test units if this one goes off without a hitch).  So, HOPEFULLY I will have the car running off of the MAF by tomorrow evening.  I also ordered a ton of extra components from Digikey...all the filtering and power supply stuff for more units.  Cross your fingers that there are no more...issues with this stupid thing.
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bmwman91

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M42 MAF Conversion: SUCCESS!!!
« Reply #81 on: November 28, 2006, 01:16:18 AM »
Hokay, update eleventy billion.

I got the parts today and soldered up a little prototype dealy.  Works fine, and I got the IAT "dummy" resistor on and at the right value.  Tomorrow after work I will look into installing it.  Cross your fingers, toes, legs, arms, eyes, whatever!
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dbgrubbs

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M42 MAF Conversion: SUCCESS!!!
« Reply #82 on: November 28, 2006, 06:46:03 AM »
Cannot wait for you to finish this. I'm building my paypal account balance in anticipation.
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bmwman91

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M42 MAF Conversion: SUCCESS!!!
« Reply #83 on: November 28, 2006, 10:29:26 AM »
Well, HOPEFULLY I will test soon.....naturally the car barely ran this morning...and that is stock, just trying to go to work.  I do not think I can test the MAF conversion until I figure out why my car was stalling out on the highway and stuff.  Details are in another thread.....a "help me plz" thread lol.

EDIT:
Here is the plea for help...
http://m42club.com/forums/showthread.php?p=14582

So uuuh, if you all help me fix this then ummm that means MAF conversions sooner lol.
« Last Edit: November 28, 2006, 10:50:31 AM by bmwman91 »
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