HPT won't log maf
09-30-2007, 07:33 PM
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HPT won't log maf I'm having a little issue logging mass air flow. Its stuck at 2.64 g/s. Switched to another maf, same thing. Raw Hz stick at zero. WTF?
09-30-2007, 07:39 PM
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are you logging all the proper parameters to log the MAF readings?? you can't just have 1 parameter..i believe you have to have 2 or 3 open to read the MAF sensor
09-30-2007, 08:33 PM
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You don't need anything special to log MAF Hz or g/sec, these
are straight PIDs (on a standard OS anyway, dunno about the
speed-density-only ones).
Check the power to the MAF, ENG SEN fuse and the at-the-
connector (should be a +12V and a +5Vish).
are straight PIDs (on a standard OS anyway, dunno about the
speed-density-only ones).
Check the power to the MAF, ENG SEN fuse and the at-the-
connector (should be a +12V and a +5Vish).
10-01-2007, 08:29 AM
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I will check that today, thanks.
There is nothing in the calibration file that I turned off by addicent is there? I look at anything airflow related that seemed relavant and I havent touched anything in there in ahwile, it all seems fine. I did add a pin to the pcm last year to log thru the EGR, but the scanner has worked fine since the re pinning untill now. I am getting a code for insufficient maf frequency hmm. I'll make sure the maf is getting power.
There is nothing in the calibration file that I turned off by addicent is there? I look at anything airflow related that seemed relavant and I havent touched anything in there in ahwile, it all seems fine. I did add a pin to the pcm last year to log thru the EGR, but the scanner has worked fine since the re pinning untill now. I am getting a code for insufficient maf frequency hmm. I'll make sure the maf is getting power.
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10-01-2007, 09:18 AM
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Originally Posted by Checkmate
definitely check the eng fuse. someone else on MM had this same problem and it was the fuse. 
10-02-2007, 07:11 AM
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The ENG SEN fuse was blown. I haven't hooked up the scanner yet but that had to be it. Thanks guys, I probably would have tore the wiring harness out or something before looking there. 
