Hi I have a 98 ranger 2.5. I have replaced the camsensor twice but still a miss and the code coming up the same for cam sensor. Any Ideas?

 

Lots of Cam sensor codes, which one did you get?

P0340 Camshaft Position Sensor Circuit Malfunction
P0341 Camshaft Position Sensor Circuit Range/Performance
P0342 Camshaft Position Sensor Circuit Low Input
P0343 Camshaft Position Sensor Circuit High Input
P0344 Camshaft Position Sensor Circuit Intermittent

Sensors rarely fail but are often replaced

 

Hi Ron Thanks for replying. I got P0340

 

My thought is that it may be the timing belt?

 

No, probably not

P0340 Camshaft Position Sensor Circuit Malfunction

Means the computer is not getting a signal from Cam sensor, so most likely a wiring issue or computer issue, since cam sensor has been checked/changed
Computer has "range" plus low and high codes(341,342,343) it could use if it was a "timing" issue, P0340 or 344 tend to indicate wiring/connection issues
You should always look up "codes" on a full list because computer will have several codes it can use for any one system, the codes it does NOT USE can help you diagnose possible problems

There should be a Grey/red striped wire on the cam sensor, this is the common wire that is shared by most sensors, TPS, ECT, IAT, so you can use an OHM meter to test if grey/red wire on TPS, for example, has 0 OHM connection to grey/red wire on CPS

Other wire on CPS runs to the computer, should be dark blue with orange stripe, it runs to Pin #85 on computer
You will need to pull the large connector off the computer and test that wire with OHM meter, 0 ohms is good connection/good wire

Pin numbering seen here: http://mechdb.com/images/0/0e/Ford_EEC5_pinout.png
But just look for wire colors

And just a heads up, P0340 can be caused by failing alternator, leaks AC Volts into the system, Cam sensor generates AC voltage as its "pulse signal" so............
Alternators generate AC Volts then Diodes are used to convert that AC to DC volts which powers the vehicle and charges the battery
So use a volt meter on battery engine off, should be 12.3v to 12.8 volts DC
Then start engine, should be above 14.5volts and stay that way for a few minutes then drop down no lower than 13.5v, should be about 1 volt higher than engine off battery voltage
Let engine idle for 5 minutes or so
Then turn on all lights, door open, radio on, Fan on HIGH
Battery voltage should stay above 13.5volts, with everything on

 

Ok sounds good. I will check that tomorrow and let you know. I hope it's not a computer issue.