The wifes Z recently started issues. I rebuilt the engine earlier this year and included a new optispark. Also have added a new coil recently. The car will run fine drivng around town, then some time after fairly hard acceleration it will choke out and die. It will then restart after a min or so. I pulled #1 plug wire the last time 5 mins or so after it died and checked for spark - which was present. Hooked the wire back up and she fired right up. There was an SES light so hooked up TTS. Found codes 16,32,44,51 and 77. The 32 is to be expected - EGR was removed. I can provide the file if anyone would like to see it. Any ideas to this issue appreciated. Thanks, Bryan

 

'97 is OBD2 , your codes are OBD1 , are codes are from a different car or did you convert to OBD1. Code 32 is OPTI (low res failure), 44 is left O2 lean and 51 is PCM programing error, 77 is fans (do you have a manual switch ??). The 32 would cause it to die, the 51 is scary, could be voltage or ground to PCM. But these are all for OBD1 f-body 1993-1995 only PCM's, if car is something else then they may not apply.

 

Sorry about that, forgot that little detail . The car in question is a 95Z, obviously OBDI. I forgot to state that. FWIW, my car, the 97TA, is converted to OBDI.
I can check all of the wires to the PCM and will make sure all is well. Should be though, it's pretty clean under the hood and very minimal (if any) corrosion on wiring ground points. I can pull the PCM, blow out the connectors to be safe. I did add a fan switch. The fan fault has been coming on periodically for a while now.Thanks, Bryan,

 

Bryan, e-mail me (click on my ID) the DataMaster file and let me know what conditions it was taken from, not starting, dying off or when running OK. I'll take a look at it.. Bob D.