35thT-Bird
Registered User
hi, i recently did the heads on my 1990 supercoupe and it hasn't been running right. It sounds like a vacuum leak, but i double checked the vacuum lines and they seemed to be good, so i scanned it and came up with the following codes:
41) EGO(H025)NOT SWITCHING RICH +LEAN
91) LEFT EGO SENSOR LEAN OR NOT SWITCHING
72) NO MAP/MAF CHANGE ON THROOTLE SNAP
73) NO TPS CHANGE ON THROTTLE SNAP
25) NO KNOCK SIGNAL DURING SELF TEST
do you think there are many problems or one root problem thats causing all of these errors?
if you have any suggestions or possible solutions, they are EXTREMELY appreciated! thank you,
-Jeff
41) EGO(H025)NOT SWITCHING RICH +LEAN
91) LEFT EGO SENSOR LEAN OR NOT SWITCHING
72) NO MAP/MAF CHANGE ON THROOTLE SNAP
73) NO TPS CHANGE ON THROTTLE SNAP
25) NO KNOCK SIGNAL DURING SELF TEST
do you think there are many problems or one root problem thats causing all of these errors?
if you have any suggestions or possible solutions, they are EXTREMELY appreciated! thank you,
-Jeff