1984 corvette hard starting and stalling after headers installed
Thread Starter
Heel & Toe
Joined: Feb 2011
Posts: 21
Likes: 0
From: Mayaguez Puerto Rico
1984 corvette hard starting and stalling after headers installed
Hi All
decided to install a set of short headers on my 1984 corvette,after that took it to a garage to weld all mufflers,when pick it up at the garage start stalling and stumbling took it home and let it there until week end,change wires burned by headers,installing new oxygen sensor(broke it at garage)
set an elbow on the knock sensor (new) in the opposite side of block due to space,check everything and start but stalling and stumbling, Jump OBD but no codes at all,change ECM because I have another but still no codes neither lights on the center dash, disconnecting coolant sensor and work better, bought a new one crank it runs ok move it,wash it and later did not work still stalling and stumbling, disconnect EGR close opens on TBI and EGR valve nothing still the same.
stalling,stumbling and smoking a lot
any ideas?
decided to install a set of short headers on my 1984 corvette,after that took it to a garage to weld all mufflers,when pick it up at the garage start stalling and stumbling took it home and let it there until week end,change wires burned by headers,installing new oxygen sensor(broke it at garage)
set an elbow on the knock sensor (new) in the opposite side of block due to space,check everything and start but stalling and stumbling, Jump OBD but no codes at all,change ECM because I have another but still no codes neither lights on the center dash, disconnecting coolant sensor and work better, bought a new one crank it runs ok move it,wash it and later did not work still stalling and stumbling, disconnect EGR close opens on TBI and EGR valve nothing still the same.
stalling,stumbling and smoking a lot
any ideas?
Safety Car
Joined: Nov 2005
Posts: 3,532
Likes: 1,185
From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
Hi All
decided to install a set of short headers on my 1984 corvette,after that took it to a garage to weld all mufflers,when pick it up at the garage start stalling and stumbling took it home and let it there until week end,change wires burned by headers,installing new oxygen sensor(broke it at garage)
set an elbow on the knock sensor (new) in the opposite side of block due to space,check everything and start but stalling and stumbling, Jump OBD but no codes at all,change ECM because I have another but still no codes neither lights on the center dash, disconnecting coolant sensor and work better, bought a new one crank it runs ok move it,wash it and later did not work still stalling and stumbling, disconnect EGR close opens on TBI and EGR valve nothing still the same.
stalling,stumbling and smoking a lot
any ideas?
decided to install a set of short headers on my 1984 corvette,after that took it to a garage to weld all mufflers,when pick it up at the garage start stalling and stumbling took it home and let it there until week end,change wires burned by headers,installing new oxygen sensor(broke it at garage)
set an elbow on the knock sensor (new) in the opposite side of block due to space,check everything and start but stalling and stumbling, Jump OBD but no codes at all,change ECM because I have another but still no codes neither lights on the center dash, disconnecting coolant sensor and work better, bought a new one crank it runs ok move it,wash it and later did not work still stalling and stumbling, disconnect EGR close opens on TBI and EGR valve nothing still the same.
stalling,stumbling and smoking a lot
any ideas?
There could be a lot of different things causing your issue.
Thread Starter
Heel & Toe
Joined: Feb 2011
Posts: 21
Likes: 0
From: Mayaguez Puerto Rico
cat converter is connected to the main system but the connection in the side that goes to the manifold is close due to the installation of the headers.
Thread Starter
Heel & Toe
Joined: Feb 2011
Posts: 21
Likes: 0
From: Mayaguez Puerto Rico
Thread Starter
Heel & Toe
Joined: Feb 2011
Posts: 21
Likes: 0
From: Mayaguez Puerto Rico
Success
I may found the problem,when disconnect EGR valve and close outlets on TBI and valve did not disconnect the sensor and apparently keep connecting and troubling the electronics,after several tfy outs it is running ok, will need to keep checking for any code or ECM situation.
Thanks all for your support will let you know any news
Thanks all for your support will let you know any news
