pulled codes on 94
Thread Starter
Racer
Joined: Jul 2006
Posts: 327
Likes: 1
From: Trenton Ga
pulled codes on 94
ok i pulled the codes today in hopes to find out what is causing the car to run like crap at 1/4 to 1/2 throttle at around 1700 rpms. the bad news no engine codes so i do not know if i need to put a opti on it or check the knock sensor wiring and the codes i got are module one h31 h33 h35 and h37 no other codes in any other module could these be related? to the car running bad? the car is acting light it is getting valve pining at 1700 rpm thanks for the help
Drifting
Joined: Sep 2003
Posts: 1,363
Likes: 7
From: 1994 LT1 Coupe 6-speed with FX3 & 2000 LS1 Vert 6-Speed with F45 Hunterdon County, NJ
ok i pulled the codes today in hopes to find out what is causing the car to run like crap at 1/4 to 1/2 throttle at around 1700 rpms. the bad news no engine codes so i do not know if i need to put a opti on it or check the knock sensor wiring and the codes i got are module one h31 h33 h35 and h37 no other codes in any other module could these be related? to the car running bad? the car is acting light it is getting valve pining at 1700 rpm thanks for the help
h31=LCD data circuit
h33=data clock circuit
h35=data strobe circuit
h37=M Clock circuit
All four's further definition is: 'circuit shorted to battery voltage or CCM internal open'.
Suggest acquiring an FSM or reviewing yours for the troubleshooting approach for these.
