Srunner

Looking for techincal feedback. I have a 2002 GT. Check engine light came on 3 weeks ago. Three different repair shops (including the Ford Dealer) have run a diagnostic..each one shows the only thing bad is the "cam sensor." Each mechanic has replaced the senor with Ford factory cam sensor, but the light still comes back on within an hour. The mechanics can not figure it out. Anyone had this issue?? The car has a soft backfire (one pop...then car dies) about 50% of the time when it is first started. Once car starts, it runs smooth at idle and all the way to 6000 RPMs.

I put a new battery in the car because I was told a weak battery could cause a small backfire and check engine light to come on. This was not my problem. Any feedback is appreciated.

Could it be a bad Fuel Pump that is causing the misfire and false check engine light???

tcuallstar

what are your mods?, sometimes if underdrive pulleys are installed wrong it can thow the cam sensor

02StanGT

How so?

JT2000

I went thru 2 cam sensors before I put a washer in as a spacer and I haven't had a problem since. But my problem was that the sensor was rubbing on something (the cam itself i guess) and causing the sensor to crack.

tcuallstar

some of the piggyback models of ud pulleys can cause that if they arent installed properly or seated right

02StanGT

You sure you're not talking bout the crank sensor? I can understand piggybacks making the crank sensor mess up, but not the cam sensor.