i swapped a ls into my hf and i was wondering if the stock fuelpump is up to the task of keeping the LS going. ive heard of a code 43 fuel supply coming up before? and also what about a b16 will it work for either?

 

ttt

 

i used to have that code 43 come on for me. so i swapped out my si for an aftermarket one. but it turned out to be my wires that were grounding out. but most of the time its just a O2 sensor.

 

mm te o2 tripped the fuel supply code? so it could very well work then eh? thx for the info!

 

Yes it will work no problem

 

usually it means its reading to rich. a bad o2 will make it read that even though it isnt. the fuel pump is fine. u wont have to upgrade unless your making some serious power