If you have a check engine light on, have the codes read. It may be as simple as replacing the fuel cap.
Trouble code P0446 means: EVAP Vent System Performance
Trouble Code P1457 means:Evaporative emissions EVAP control system leakage So to fix it you need to replace the EVAP Canister
For sure you can You need to have the evap system inspected. It may be as simple as replacing the fuel cap.
we are still trying to fix the problem
If a smog inspector said that the EGR EVAP and Fuel Pressure sensor are modified on a 1988 Isuzu Trooper II 2.6, then the problem has to be fixed before the smog inspector will approve the vehicle for registration. The EGR EVAP and Fuel Pressure Sensors have to be put back the way they came from the factory.
Remove the dash and replace the evaporator...you might as well replace the heater core while your in there. Its a big job...but can be done a lot cheaper than bringing it to a mechanic
Check for vacuum leaks and good electrical connection at the EVAP vent solenoid
Depends on the problem. If you want to fix the problem, then find the solution and use the solution to fix it.
First you want to smoke test the evap system to find were the problem really is . On a 97 Stratus with a 2.5 motor the charcoal box and purge valve is located under the passenger fender right next to the wiper fluid container.
trying to fix simular problem
There is no problem of gays in the military, so there is nothing to fix.
EVAP, charcoal canister not being purged, usually this is a simple fix a vacuum line