Helloooo all
I have 2 problem
Cel 67 bad cat system blah blah
What sould i do with this? just get a o2 simulator so i bypass the cat and de sensor it self ? or trying to push more to found is the cat is wrong or sensor ...ect ... I have headers and a cat back but stock cat.
tryed search but too many things comming out

2nd
Gauge temps
I had 2 itr before and the gauge niddle was standing close to 1/2 but on this one gauge can't stock moving from the 1st line to the middle but never goes over 1/2. I dont know if the car have stock thermostat. If i push the car lil bit the gauge stay a 1/2 as soon as i let the gas off and runing on hishway exemple the gauge is near the 1/3 no more. Vtec working. I dont think its normal need your help
Tryed search to but no good information or things to fix this

Ty