PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

pink wire on maf,fluctuating 5v or 12v

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Old Nov 15, 2008 | 05:25 PM
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Default pink wire on maf,fluctuating 5v or 12v

ok heres my issue;

no maf reading, p0102 code, via hptuners i have flatlined .22 on the maf

i have a good ground, black/white, and the yellow has 5v

is the pink wire supposed to be 12v or fluctuating from 1-5volts. Im getting neither. And also what harness connector(red or blue) does that wire go into.

Im getting in the blue connector a pink wire with no voltage, red i have one pink wire with 12volts. Im trying to see if its a wiring issue, or a PCM issue.

also if its the 12volts, the eng sens fuse is good. What would happened if i ran a jumper 12v wire to it, to see if I received a reading?
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Old Nov 15, 2008 | 05:58 PM
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Sounds like you have a break or a short in that power Wire..
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Old Nov 16, 2008 | 12:52 PM
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well i ran a jumper wire, and got maf readings, but i unplugged my pcm, now car doesnt want to run, cranks to about 500 rpm and dies.
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Old Nov 17, 2008 | 06:42 PM
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pink should have 12v when the key is on
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