This is an update on my 97 e320 (13000miles) had been in accident air bags deployed, no phisical demage to engine.

I just received my obd II scanner yesterday.
I read the following codes:

1. IAT SENSOR CIRCUIT P0110

2. MAF OR VAF CIRCUIT P0100

3. PURGE VALVE C FAULT EVAP EMMISSION CONT SYSTEM P0443

4. ENGINE COOLANT TEMP CIRCUIT P0115

After reading the codes I erased all of them, ( I think the codes came in when the engine was running and I disconected various sensor plugs) .

I read the codes again after running the car and there was only PASS no codes.

There is no check engine light comming on.

I removed the spark plugs, they were all with black charcoal on their tips.

The car runs but rpm goes from 400-700 rpm, when pressing on gas backfires and or stalls.

I did not check fuel pressure yet, only opened the valve on the fuel rail to see if there is fuel , it is comming like from water house.

Do you have any ideas what I could do next?

I appreciate your help