I just bought a used 94 Safari van. The problem I am having is with the dome light. The lights will not turn on with both of the front doors. The rear and side doors turn the light on with no problem. The switch on the dash also turns them on. The slider switch on the top center dash also works fine when in the off position the lights do not come on with the rear doors. When I leave the key in the ignition the key buzzer works telling me that the door switches are fine. I suspect that the front doors used to activate a interior light timer ( don't know because I bought it used) Does anyone know where the timer is and what it looks like.
Also I can only get about ten miles to the gallon in the city and fifteen on the hiway. The exhaust smells like an old sixties car. (very strong no pollutin control) I have changed spark plugs, dist cap, rotor, air filter, advanced timing
2 degrees, repaired leaking vacuum hoses etc. There are no stored codes. I removed the six wire EGR and it seems fine moves free and not clogged. I can hear it click open and close when I play with the throttle with the engine cover off. It has very good starting a smooth idle and lots of power. Before doing all the above repairs the mileage was about 30 percent worse. With no code what would be a good guess of parts to replace to get it to smell less rich. There is no rotten egg smell and good power so I don't suspect the catalytic converter as I was told. Could the o2 or other sensor's be out of range just enough to give no code but make it burn ritch? It has 205 km on it. I doubt that any sensors have ever been replaced based on the paper work from the previous owner. Would the o2 sensor at $100.00 be a good guess? The EGR control valve is $450.00 so I would block it before I guesed on that part. Where can I find info to check these sensors with a VOM. Ok to email direct thanks in advance.