So I have a '94 with a 5.0. I just swaped in a Mustang Cobra upper/lower intake, and a BBK 75MM. Everything bolted up good, but now I'm having trouble trying to get it to run right.
After it warms up, it likes to stay at 2,000 rpm for a couple minutes, then slowly work its way down to 800 RPM.
I was able to pull 5 KOER Codes. There are:
#8 Cylinder is lean
DTC 172-Hego (HO25) sensor fault/lean
DTC 136-Hego (HO26) sensor fault/always lean
DTC 332-insufficient EGR flow detected
DTC 411-Can't control RPM during KOER low RPM check
The engine does feel like it's running rich, but as an after thought, since I am running a cobra intake, should I change all my sensors to cobra as well?? I don't want to just throw parts and pray it works, but not sure where to go from here.
Oh ya, I did use the fiberglass spacer that goes between the upper/lower intake, but did not use a gasket between those layers, should I go back and gasket those as well??
After it warms up, it likes to stay at 2,000 rpm for a couple minutes, then slowly work its way down to 800 RPM.
I was able to pull 5 KOER Codes. There are:
#8 Cylinder is lean
DTC 172-Hego (HO25) sensor fault/lean
DTC 136-Hego (HO26) sensor fault/always lean
DTC 332-insufficient EGR flow detected
DTC 411-Can't control RPM during KOER low RPM check
The engine does feel like it's running rich, but as an after thought, since I am running a cobra intake, should I change all my sensors to cobra as well?? I don't want to just throw parts and pray it works, but not sure where to go from here.
Oh ya, I did use the fiberglass spacer that goes between the upper/lower intake, but did not use a gasket between those layers, should I go back and gasket those as well??