Z31 HPX N1 Blow through MAF wiring

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84z31turbo
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Joined: Fri Mar 30, 2018 3:47 pm

Z31 HPX N1 Blow through MAF wiring

Post by 84z31turbo » Wed Apr 11, 2018 11:05 am

So I switched from a Z32 draw through MAF to a HPX N1 blow through MAF (3" housing). My Z32 MAF worked fine but with the HPX my 84 turbo won't stay running unless I unplug my MAF. I think I wired it correctly. The car starts and idles beautifully for about 10 seconds then dies. I did the MAF change operation for the new MAF from a Z32 to a HPX N1 3". Any help would be appreciated
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Is my wiring right?
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Matt
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Re: Z31 HPX N1 Blow through MAF wiring

Post by Matt » Thu Apr 12, 2018 12:26 am

What does the MAF voltage show at ignition on (should be about 0.3-05V) and running (should be about 1V)

You may need to manually increase the bottom of the table, and of course check mixtures at cruise (0% trim) are around 14.7:1 to make sure base settings are right

84z31turbo
Posts: 2
Joined: Fri Mar 30, 2018 3:47 pm

Re: Z31 HPX N1 Blow through MAF wiring

Post by 84z31turbo » Wed Apr 25, 2018 12:52 pm

Matt wrote:What does the MAF voltage show at ignition on (should be about 0.3-05V) and running (should be about 1V)

You may need to manually increase the bottom of the table, and of course check mixtures at cruise (0% trim) are around 14.7:1 to make sure base settings are right
Thanks Matt, I'll check the voltage on the MAF

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