when I tuned my c/t with a/c, my tuner said the fuel pump might be bad. it is cutting off fuel or not getting enough fuel at 9k rpm. How can you tell if my walbro that come with the c/t supercharger kit has gone bad?
(Little background on my car. 01 c/t supercharged with a/c boosting 10lbs with 3.5' asp pulley, 650 rc injectors, test pipe, 1050 aem ems, and everything else stock). I got the kit brand new about a little than one year ago, and only put about 8k miles on the supercharger. but just upgraded to the 3.5 pulley about 2k miles ago. what do you guys think I should do. any ideas will be appreciated!!

 

Might be droping in voltage up top. do you have a big stereo system?

 

no, but I do have the stock rsx subwoofer in the back of the trunk with some v12 amps. can that be the problems???

 

The pumps tend to wimp out. Several of us have had to replace the pump.
Make sure you get the HP pump, the model #342.

 

got 2 in my tank :0)

 

thanks for the responds guys. here is another stupid question, what is the HP pump? is that the same like walbro, and where can I get them at, after replacing the pump do I have to retune it again?

 

Walbro 255HP. They are available for less than $100 on the internet. If there is anything unsatisfactory about the previous tune then you might need to retune but you should ask your tuner.