GTEC913

93 civic ex
i was wondering if anyone can help me out fix this problem....the check engine light is throwing code 43 (fuel supply system) and my car sounds like a subaru when i gas it...its like not getting enough gas..(stutters)...so if anyone knows how to fix it hlep me out..thanks


Modified by GTEC913 at 1:17 PM 5/25/2005

JOEY F.

Im having the same exact problem. Try searching "fuel system supply" and youll get some threads of what other people have to say....

Many think its a bad o2 sensor or clogged fuel filter.

In my case I have changed the fuel filter and its still carrying on, popping and such with the cel 43 on.

DjGuamstyles

if you've never changed the 02 sensor, try that first, it will only make your car run better. If not, take the car down to the oil change place, most of them do injector cleaning from the fuel rail, or you can try the Seafoam treatment, that might help clean up the fuel supply.

GTEC913

thanks for the help im going to try that...

INVALID

I've got a similar cel on the spare, if you drive barely taking it to 3 rpm do you still get the cel? I only get the cel if I try speeding up then the car will seem to bog down. I'm going to check/change the fpr, fuel, and injectors off my si to see if they make a difference. Already did something similar to seafoam to the car, and the other stuff listed above with exception to the o2 sensor so I'm looking for more alternatives. Or see what what others symptoms are.

stevenlo

pinch the supply line slightly and see if the motor runs better!
if yes you might have a defective fpr, if no you might want to
check the fuel pump to see if you're gettin system voltage with
no hiccups or spikes

INVALID

Glad you mentioned that cause I was going to say something about the line to the pcv beings somewhat kinked a little. Either way, I'm going to check and replace a few things. When it comes to those items it really shouldn't be too costly anyway.

JDMlyfestyle

8 times out of 10 its the o2 sensor. but i have seen where it was a dirty injector or Fuel filter.