LT1 Help, throwing a bunch of CEL codes
Thread Starter
Teching In
Joined: Jan 2006
Posts: 12
Likes: 0
From: Moorpark, CA
LT1 Help, throwing a bunch of CEL codes I need some help trouble shooting problems with my rough running LT1. I scanned the PCM and came up with 8 codes and I have repaired all the problems I know of and I am down to 3 codes-
P0412 - Secondary Air Injection System Switching Valve A Circuit Malfunction
P1641 -
P1642 -
I am going to have to double check the last two codes, I was going off memory and I looked them up and it is some thing about a MIL and speed output, and that is not the correct codes that my car is throwing...
I do know I have a bunch of disconnected vacumn lines, could that be causing the Air Injection problem? Does any one have a vacumn diagram for 93-97 Z-28's?
P0412 - Secondary Air Injection System Switching Valve A Circuit Malfunction
P1641 -
P1642 -
I am going to have to double check the last two codes, I was going off memory and I looked them up and it is some thing about a MIL and speed output, and that is not the correct codes that my car is throwing...
I do know I have a bunch of disconnected vacumn lines, could that be causing the Air Injection problem? Does any one have a vacumn diagram for 93-97 Z-28's?
