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28th July 2023, 02:45 PM
#1
Is there a good reason to run extra power to the MAF sensor?
I've got an 03 GU Patrol ZD30 DI and I've discovered a strange bit of wiring.
I'll get a photo when I get home today, but while removing the awful wiring job done by the previous owner I found that they seem to have wired a constant DC voltage into the MAF sensor from an aftermarket converter. Are they trying to keep it out of limp mode or something?
Let me know if we need any additional info other than a proper photo this arvo. Cheers Guys .
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28th July 2023 02:45 PM
# ADS
Circuit advertisement
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28th July 2023, 03:11 PM
#2
I would only assume yes, but usually people just run a diode on one of the wires to achieve the same result.
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28th July 2023, 03:34 PM
#3
Should I just replace the sensor? I'd rather it functioned as intended lol
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31st July 2023, 08:23 PM
#4
Originally Posted by
willbobaggins95
Should I just replace the sensor? I'd rather it functioned as intended lol
If it’s running fine I’d leave it.
Sent from my iPhone using Tapatalk
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1st August 2023, 12:10 PM
#5
Expert
I believe it tricks the ECU into thinking the air is warmer as the EGR won't open above a specific temperature. It may increase the air-fuel ratio too, lower EGTs etc.
Last edited by pollenface; 1st August 2023 at 12:18 PM.
2008 CRD Auto Wagon
Factory snorkel, flashlube catchcan pro, 3" manta exhaust, hpd boost controller, dyno-tuned & egr deleted
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