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300zx TT black smoke and bouncing idle 500-1750rpm when warm


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7 minutes ago, 300zxfishy said:

I’ve seen some comparison videos at 1200-1250 rpm and there mafs are at 1.4v 

i haven’t tried the screw yet seems quite awkward to get to but may try within the week, do you go counter or clockwise to get the idle down ? Also how many turns does it go ? 
 

thanks 

Long screwdriver not that hard, if you need more space take battery out. Clockwise to bring revs down cuts air flow if you have a leak somewhere.

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Edited by Bones28

2002 Porsche C2 996 3.6 
1991 Nissan 300zx TT Project

1995 Nissan 300zx TT Crashed 🥲

1997 Jaguar XK8 Scraped ☹️

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8 minutes ago, Tom-B said:

Apologies if you’ve tried this already, but have you tried an ECU reset? You need to do it on the Z32 if you make any modifications.

By taking the battery off ? Haven’t done it in a while but have tried it a few times since maf replacement 

 

thanks 

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