Help with the sr

[gippy87]

The sr has been in my car for just over a week or so. The car runs and drives fine except under full throttle. this wasnt a problem untill just a few days ago. Seems as if the car is more powerfull and picks up speed faster at half throttle then at full throttle. Also at full throttle it cuts out a sometimes. Checked for any loose connection on intercooler piping and found nothing, still need to run a boost leak test to be positive. I just want it to be like when i swapped it in a week ago please help :)

[k's_silvia2.0]

Maybe its probably a fuel problem.

[nissan240sxkid]

try your plugs to make sure they are gapped right and clean...with clean see if maf is and if tps has the right voltage....or an injector could be getting stuck....I hate these problems their either simple or crazy to find and fix

[SidewayZ-s14]

Same problem with my SR. The stock Fuel pump wasn't cutting it anymore. I bought a Walbro 255lph Fuel pump, and the problem was gone! Try upgrading your fuel pump!

By the way, is it an s13 or s14 SR, and in what chassis?

Good Luck! :)

[nissan240sxkid]

true didnt even think of that and make sure that the filter is clean

[gippy87]

yea i had this issue with my last sr20 it was the fuel pump i upgraded to walbro and it fixed the problem but im currently using a walbro on this setup and it runs as described in first post. I get code 55 so no help from that. Also so you know its a s13 redtop.