Code 43 Headache.......

[csucsi]

hey y,all

 

ive been reading as much as possible to figure out this ses dilema so far changed the o2 ,knock sensor, timing chainset, esc, cap, rotor ,plugs , all because of CODE 43 AND IT WONT GO AWAY IT HAUNTS ME IN MY SLEEP and ive developed a twitch

 

the trucks a 93 5.7 suburban 4wd

 

also ...wheres the timing wire for this thing so i can check the timing

[redvett]

Code 43 is ESC Signal to ECM has remained low for too long or the system has failed a functional check.

Since you have changed the knock sensor i would say you need to do a contnunty check between the knock sensor and the ECM. Also is the ign module a good quality like GM one, or a cheapy if its a cheapy get a good one.

 

Thje ign timing wire is under the cover for the buss bar above the heater and is tan wire that has a disconnect. Timing should be at zero or +1.