Need help with trouble codes for a 94
Thread Starter
Racer
Joined: Apr 2003
Posts: 383
Likes: 0
From: triangle NC
Need help with trouble codes for a 94
Im getting h13 and c13 in module 1 , h77 and h78 in module 4, I thought that code 13 was bank 1 02 so I replaced the drivers side o2 and am still getting h13. h77 and h78 I know are for the fans. I have a switch that grounds them. What does h13 and c13 mean? And can having the fans grounded cause the computer to change fuel or timing? whats the difference between c and h?
Drifting
Joined: Nov 2002
Posts: 1,365
Likes: 3
From: Huntsville AL
Re: Need help with trouble codes for a 94 (87Z-ya)
"H" is "history". I'm not sure how long the code has to be stored before it becomes an "H" though. Maybe we should be asking this stuff in Scan and Tune.
