malfunction code 51

[Velon]

My 87 gn keeps getting a code 51 and idling very rough or going dead and starting back after resetting the computer. the turbo tweak chip is very new so I don't think its that. The ecm is original so I figure its that since a code 51 is primarily ecm or prom related. I just didn't want to buy a ecm if that's not it, anybody experience this?thanks

 

[Blazer406]

My 87 gn keeps getting a code 51 and idling very rough or going dead and starting back after resetting the computer. the turbo tweak chip is very new so I don't think its that. The ecm is original so I figure its that since a code 51 is primarily ecm or prom related. I just didn't want to buy a ecm if that's not it, anybody experience this?thanks

It is super easy to bend a pin when inserting the prom chip.....

I would recommend pulling the prom chip and verifying none of the pins are bent.

 

[87gnguy]

I had the same code come up on mine. I cleaned and checked all the pins and and cleaned them with a pencil eraser. Ended up being the ECM anyway. It was original to the car so I wasn't surprised.

 

[Velon]

thanks for the reply guys.