CM870 Boost issues

[tree98]

I hate to say it but there's no way to know if what you have is a legit part. Parts that are bought anywhere but at a licensed dealer are a crap shoot, especially online places like eBay.

You end up in this exact situation, having problems and trouble figuring it out because you've already changed a particular part so you move on to look for other causes, yet the problem is the aftermarket/rebuilt/ Chinese knock off part you changed that looks exactly the same as the genuine part.

In other words you just don't know exactly what your getting. Here's a great example of this.

https://rawze.com/forums/showthread.php?tid=9128

Unfortunately the only way to rule it out as the cause is to buy one from a dealer. I'm betting it fixes your problem.