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Check PC solonoid valves, springs, and checkballs. Had identical issue, worth a try

I know this is a faily old thread, I've only recently been reading in the section after i bought a regal gs, if you're still looking for a 2.0 turbo tune i'd be willing to send you one

I agree 100%, i thought it over after I had an Lmm come in that had all 8 sticks brutally fail gm's 18 ML spec at 140 mpa, After replacement of those injectors, fuel temp dropped nearly 100 degrees,...

Hello, I am currently working on a 07 lly c5500 that has an issue i can't seem to work out. Truck came in with p0087 code and obvious rail pressure concerns. Diagnosis of low pressure yeilded a new...