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why is my maf irratic?????

Old 04-27-2008, 02:34 PM
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Default why is my maf irratic?????

at wot when in boost my maf is all over the place. does anybody know why? is it maybe a leak or the wastgate or what? it is driving me up the wall. here are a few logs. in one i got kr at only 16* not sure why.
Attached Files
File Type: hpl
leak check1.hpl (13.0 KB, 52 views)
File Type: hpl
long wot to car show.hpl (6.0 KB, 76 views)
File Type: hpl
fixleak.hpl (4.2 KB, 151 views)
Old 04-27-2008, 03:56 PM
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i checked out leak check1 file and it seemed fine

u need to log boost too...seems like your boost is fluctuating to me
Old 04-27-2008, 06:09 PM
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how do i log boost? can i tie my mvpi to my electric boost guage? leak check1 is one of the better ones. i found my injectors were leaking boost and blowing out fuel. so i hook my compressor to my plumbing and fixed the leaks. i need to check it while its hot also.

Last edited by 4.8T; 04-27-2008 at 06:36 PM.
Old 04-27-2008, 07:14 PM
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i rotated the maf and here are the logs.
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File Type: hpl
another maf log 1.hpl (5.8 KB, 109 views)
File Type: hpl
another maf log 2.hpl (2.7 KB, 112 views)
Old 04-28-2008, 04:26 PM
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anybody have any logs i can see? here is a screen shot

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Old 04-28-2008, 08:26 PM
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Mine is like that as well, Turbo LS4 with a LT1 MAF.
Old 04-29-2008, 11:57 AM
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do you know why? what wastegate ae you useing? is your maf right after a bend?
Old 04-29-2008, 07:08 PM
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vid of gauges to se if boost is steady. http://videos.streetfire.net/video/t...lux_159278.htm


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