Mechanical Filter: Follow-up question: '93 del Sol won't start
February 28, 2013 8:45 AM Subscribe
A few weeks ago I asked this question. Consider this a follow-up question. I have a 1993 Honda del Sol 5-speed Si that has a "mystery" problem of sometimes starting and sometimes not starting. It's always a cold-start problem. I put the key in the ignition, switch it to ON until the check engine light goes on, the fuel pump pressurizes, and the main relay clicks, and then crank it. Sometimes it will fire up right away. Other times the engine will turn over but not ignite. Once it is started, it will start up fine for the rest of the day. It only gives me trouble when the engine has gone completely cold and has been left untouched for upwards of four hours. A new issue has developed since I first posted my question. Even after getting the car started, sometimes just a few minutes later during a sharp acceleration (approaching 4000rpms or more) the engine stalls out. I have to pull the car over and start it up again. It always starts up fine after that and will usually not stall out again. I had this issue looked at by several mechanics, most of whom hadn't the slightest clue what it was or willingness to investigate. The last mechanic I took it to said it was a faulty ignition switch and replaced it . . . but that has done no good whatsoever. Also, just FYI, the spark plugs are relatively new. Any thoughts are appreciated!