Hello I have been having problems with my fuel system. The check engine light pops on all the time and I ignored it for a month or so. I had trouble starting my car for a few days so I changed the fuel filter... that didn't work. I put injector cleaner in with the fuel and I thought that it was cleared up. The other day it wouldn't start again. Now today my engine light came on when I was at a stop light and the rpm's dropped low and the car stalled out and wouldn't start. I gave it a try every 10 minutes for an hour and finally it started. I drove it home and parked it. I'm getting a code 43 (fuel system). What do you think it is? fuel pump?
2007-06-20 19:07:02 · 2 answers · asked by prototype696 1 in Cars & Transportation ➔ Car Makes ➔ Honda
the problem is caused by the Oxygen Sensor despite the misleading terminology for the code. The oxygen sensor is reading a continually lean mixture which is usually caused by a bad sensor element that has gotten too carboned up and can't fully react to the exhaust gases. The other cause would be a weak fuel pump that puts out too low a fuel pressure and thereby not allow enough fuel into the engine when the fuel injectors are opened by the PCM. If there is a problem with the fuel pump you would have a bad hesitation and a general lack of power. If you don't have any driveability problems, its an oxygen sensor that has a signal that is out of range for too long. Replace the O2 sensor and you sould be good to go.
hope that helps
2007-06-21 08:01:39 · answer #1 · answered by honda guy 7 · 0⤊ 0⤋
Code 43= Left (front) fuel supply system circuit fault (except D15Z1 engine) not sure,could be a bad relay or bad ground for fuel pump,bad fuel pressure regulator.Check all vacuum hoses for air tight fit.Check fuel pressure on fuel rail you may have a bad pump.
2007-06-21 02:26:00 · answer #2 · answered by (A) 7 · 0⤊ 0⤋