ive been having some problems with my civic. its a d15b7 engine and manual transmission. So the problem is, i'll be driving down the road (uphill,downhill straightaway, it doesnt matter) and the engine stops accelerating,and it will actually slow the car down. But if i press the clutch down, the problem goes away and then comes back after 5 secs or so. Im thinkin i may have a bad sensor because ive checked my intake, exhaust n fuel injectors. Anyone have any idea what it could be?