Cadillac Owners Forum banner

1 - 5 of 5 Posts

·
Registered
Joined
·
13 Posts
Discussion Starter #1
Why would my 97 N* stay in open loop when idling? Scanner says one bank
is lean and indicates a misfire, as high as -24 to -26 fuel trim on one cylinder (not all read the same), at higher rpms it is still lean, but much less, -4 to -8 and an intermitant misfire. I really need help, any ideas? Thanks.
 

·
Super Moderator
Joined
·
86,071 Posts
I am not sure if the FPR will cause this but it is an easy check if you haven't done so already.
 

·
Registered
Joined
·
13 Posts
Discussion Starter #4
Thanks, FPR checked and I put in 2 new Delco O2 sensors, didn't do the trick, so I'm thinking O2 ground circuit, does this make sense?
 

·
Cadillac Owners Connoisseur
Joined
·
1,164 Posts
tolooka said:
Thanks, FPR checked and I put in 2 new Delco O2 sensors, didn't do the trick, so I'm thinking O2 ground circuit, does this make sense?
How are your plugs and wires? Had the fuel rail recall work done recently? Did the FPR hold a vacuum?
 
1 - 5 of 5 Posts
About this Discussion
4 Replies
4 Participants
mcowden
Top