KA24DE - Failed #3 Injector

[Bob Dobalina]

Ok, I was wondering if anyone could give me some advice. I had my #3 Fuel Injector fail last week. I replaced it and my car ran fine until today, about a week later. Now my #4 FI is bad...Is there anything else I should look at replacing to keep the rest from failing? Or do you think since 2 have failed the other 2 will probably fail soon as well....They have never been replaced before. Car has 116k miles....Thanks everyone!!

[nismoracingsx]

My car has like 125k on the clock and had an injector fail. Since they all have the same mileage, I would say it's more sensible to replace all 4 at once since they arent too expensive, anyways. Preventative maintenance ftw.

[corn322]

Check your fuel pressure. When the fuel pump starts to fail it can't keep the pressure up. Less fuel pressure = less fuel flow -> lean mixutre -> ECU compensates -> overdrives injectors.