anyone have/fix a code 42
Thread Starter
Burning Brakes
Joined: Dec 2002
Posts: 1,088
Likes: 0
From: Lakeland fl
anyone have/fix a code 42
I am getting a code 42 (spark control code) after swapping to a 165 ecm, from my 6870. Has anyone had this code, or can anyone point me in a direction of diagnosing the problem??? Thanks
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: anyone have/fix a code 42 (SBNova)
The first step is to see if the connector in the tan/blk wire is in tact.
If you can access the ECM pins you can verify that:
-the By-Pass voltage is non-zero: ECM pin D5 & dist pin B
-the EST voltage is varying: ECM pin D4 & dist pin D
-the Reference voltage: on ECM pin B5 is the same as at dist pin C
These tests should isolate the problem; likely a connection.
If you can access the ECM pins you can verify that:
-the By-Pass voltage is non-zero: ECM pin D5 & dist pin B
-the EST voltage is varying: ECM pin D4 & dist pin D
-the Reference voltage: on ECM pin B5 is the same as at dist pin C
These tests should isolate the problem; likely a connection.
Le Mans Master
Joined: Aug 2003
Posts: 9,884
Likes: 3
From: Magnolia Mississippi
St. Jude '03-'04-'05-'06-'07
Re: anyone have/fix a code 42 (65Z01)
The first step is to see if the connector in the tan/blk wire is in tact.
These tests should isolate the problem; likely a connection.
These tests should isolate the problem; likely a connection.
