I have an '89 Civic 1.5l. It starts fine, runs fine, but after I've been driving it for a while (long after I'd normally say it's "warmed up") it starts to bog and stall whenever I give it the gas. It's OK at high RPMs, but to get it there I need to veeeery gently rev it up, or it will stall. Once I get it up to highway speeds it's mostly fine, but it will miss every couple seconds when going up hill. This started suddenly but has been getting slowly harder to drive since then. The car sits a lot; I only drive it like three times a month. Anybody have any hints?