I have a 99 camry 4 cylinder that won''t start. I got a code tester and the codes are as follows
1. Crankshaft position sensor A circuit malfunction
2. Camshaft position sensor A bank 1 curcuit malfunction

Some more info. I had the timing bet replaced a few days ago by the dealer. I was told I had a bad valve cover leak. I replaced the valve cover and changed the plugs myself. Afterward there was oil everywhere from the valve cover leak. I sprayed the enine with some degreaser and hosed it off. I drove the car about 2 miles and it quit. I let it set a few hours and it started and ran fine for 2 days( better than it ever had, probably the new plugs). The next morning it did not start. I waited about 10 minutes then it started and ran fine. later that day it did not start and hasen''t since. I checked to make sure I had loose connections on anything and everything loks fine so I ran the codes. Do you think it could be something to do with the timing belt or maybe somethiing shorted out when wet. or could it be something totally different. I hate to take it back to the dealer unless it is something they did wrong. APPRECIAT ANY HELP YOU CAN GIVE

Did you get these codes after you washed the engine? If so, and you used a strong spray to hose it off, you probably got water into one or more electrical connectors.

Check the connectors associated with cam and crank sensors. Make sure they are clean and dry.

BTW, if the ECU does not receive the crank sensor signal, the car won't start. I assume it will crank, but not start.

Yes, it will crank but won't start. How should I clean them

Demate them, and blow out any moisture. Shoot a little contact cleaner in them.

did all that on both, still same thing. any other ideas

Hey guy., Check the distributor cap for water in it. Also check the plg wires at the spark plug and distro.cap. Also redo the sensor plus and if you havent alread squirt just a little bit of WD-40 at the conectors....This will displace water if thetre is anythere...Be sure to wipe off excess. I had an incident with my car after i sprayed to engine and I had some water in the distro cap. It was really cold (germany) so at night it would freeze up and the as it mellted the car would sputter then die . hehehehe Just thought I would pas that on..... Let us know if it works