Mechanic help

[WildMatt84]

My wife's 2006 matrix is throwing camshaft and crankshaft positioning sensor codes. Anyone able to help with the location of these two sensors?

[WildMatt84]

Also the computer was changed out in this car about a year or so ago on a recall. I guess what im getting at is what are the chances that both of these sensors went out at the same time? could it be a computer issue?

[HTDUCK]

What are the codes by number ?

[WildMatt84]

P0335 and p0340 I believe. Check engine light shutoff after he checked codes. That's the reason I was thinking computer. Almost seems intermittent

[HTDUCK]

Highly unlikely that both sensors failed at once. A crank sensor failure will usually result in a car that will stall or won't start at all.
My suspicion would be some type of timing problem.

[RingSteel]

Was it overdue for a timing belt change?

[dropem]

PM Sent

[BigFoot]

If the codes disappeared after he read them, chances are he cleared them, they probably didn't just "disappear". If there really is a problem these codes will come back on.

[dropem]

Check your battery before you do anything.

[Shiner]

That motor has Vvti (variable valve timing). Vvti actuators and solenoids come into play

[WildMatt84]

Battery tested bad. Guess I'll be starting there