81 280zxt w/ z31 ecu maf issues
10-26-2014 | 07:36 PM
#1
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Registered User
Joined: Nov 2009
Posts: 37
From: la feria tx
81 280zxt w/ z31 ecu maf issues
Ok i worked on my 81 zxturbo with z31 ecu maf.. when floored it goes to 3-4k and starts poping like Fireworks but if i accel slowly it goes all the way to 5-6k.. when it pops gauge shows rich mixture.. rechecked valve adjustment replaced rotor cap.. it seams like its not getting enough air or spark.. black smokes comes out.. need help
11-06-2014 | 07:52 AM
#4
The Good Twin
Joined: Aug 2005
Posts: 20,639
From: Wild Wild West, UTAH!
This was discussed on FB... not sure if he fixed it yet, but on Jarom's car that I've been working on it was a combination of 3 things:
-Camshaft sprocket was 1 tooth off
-Distributor shaft was 1 tooth off
-Faulty CAS in the distributor
Fixed the timing and replaced the CAS with one from a Z31 and it runs great.
I know datsun280zxt (Guillermo) didn't have the timing mark plate attached to the timing cover, so he couldn't even check the timing. He said he was going to reinstall it.
-Camshaft sprocket was 1 tooth off
-Distributor shaft was 1 tooth off
-Faulty CAS in the distributor
Fixed the timing and replaced the CAS with one from a Z31 and it runs great.
I know datsun280zxt (Guillermo) didn't have the timing mark plate attached to the timing cover, so he couldn't even check the timing. He said he was going to reinstall it.
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