hey truck

what is a rebreather system and is there any way to reset my computer if that would help.

Well the Rebreather system is the way the engineers regulate exhaust fumes by recirculating back into the engine intake. (Hence "Rebreather"-I think it's more technically known as the P.ositive C.rankcase V.entilation System. (PCV)) When you check your "plumbing" on your 80's-Present models, you will notice a few places that go in an "opposite" direction than you would expect. (That is, it goes to the intake when it "should" go to the exhaust.)

The main problems associated with the system are #1) Computer controls. The amount of unspent fuel in the exhaust is measured by the computer, which adjustes the amount of recycled air your engine is getting. The sensors in the system often collect 'dirt' and after some years, may need
replacement. A car can't regulate properly with a bum sensor.

The #2) is Vaccuum leaks. As with #1, the places where the exhaust gas are routed often introduce vaccuum leaks, which hampers the engines ability to control it's air intake. (Like a straw with more than 2 holes in it.) Check the rubber fittings that you find on the Intake manifold. These are often plastic lines with rubber fittings. Either one or both can develop heat-stress and fracture. You may be surprised how one of these little lines can contribute to a poorly running engine. (Auto parts stores can stock those lines by the foot, or you may opt for the 'Cut-all-that-$#!+-off' method.)

The computer can be resest by unplugging the battery for about 10 mins. (If you know how to run a code-scan, do it once, then do it again. The second time, all you have to do is cut the engine in the middle of the test to reset.)