There are all sorts of threads on low fuel pressure, FPRs and CP3s. Other issues aside (fuel line leaks, etc), there are many claiming that a new FPR fixed fuel pressure issues, and at least as many or more claiming that a new CP3 fixed their problem.
As far as I know, CP3s come with a new FPR. If the FPR was the culprit, it wouldn't be known, as the pump was replaced as well.
Short of swapping in (i.e. buying) a new (or known good) FPR, how would anyone know it's NOT the CP3? The price difference when doing it yourself is a few hundred bucks, and a lot of work. I haven't found a definitive test to differentiate between a bad FPR and a worn out CP3. Is there one?
As far as I know, CP3s come with a new FPR. If the FPR was the culprit, it wouldn't be known, as the pump was replaced as well.
Short of swapping in (i.e. buying) a new (or known good) FPR, how would anyone know it's NOT the CP3? The price difference when doing it yourself is a few hundred bucks, and a lot of work. I haven't found a definitive test to differentiate between a bad FPR and a worn out CP3. Is there one?
