Okay my car is stalling and won't start it'll crank but not start. In first gear it stalls ( it is been doing this for about3 weeks). It stalled out and then I couldn't crank it. I replaced the cam shaft sensor position because I thought that was the problem. It still won't start though. I use a off brand one, and I read on here that there's only one brand that really works well. Could that new sensor be bad because it's a off brand, or is the cps not the problem?