S14 HELP!

ONLY for ADVANCED technical discussion about the 240sx!
(403)S14
Posts: 1
Joined: Fri May 28, 2010 1:28 pm
Car: JDM S14

Post

So I had replaced my fuel pump and when I did this, the old one was all rusty.

After I put the new one in, the car ran great for a few weeks. Now after 10 minutes of driving the car wouldn't pass around 4000RPM and it just kinda bogs like its hitting a wall...it still builds boost like normal .... but when i turn the car off and back on, it immediately runs great for 10 minutes then back to the same thing... bogging at 4000RPM and slowly gets worse and doesn't really generate boost...

So i checked the fuel pump because it is making lots of noise and the screen was already dark and looked a rusty color.... I had also recently put a manual boost controller on and ran it at 16lbs by accident for 10 minutes then set it at 13lbs for about 4 days.. this is when it started really acting up.. so i took the boost controller off and its still doing the same thing... I have no idea what the f**K is going on :S can someone please help!

:gotme


User avatar
Infinitiguy19
Posts: 7787
Joined: Sat Dec 22, 2007 4:58 pm
Car: 1993 Infiniti Q45 188580 Miles
1994 Infiniti Q45a 240000 Miles

Post

Change the fuel filter with OEM new.

Clean out fuel tank.

Replace fuel pickup sock.

Reinstall fuel pump.

Do you have a Fuel Pump Control Module in your car to worry about?

Klits562
Posts: 722
Joined: Fri May 15, 2009 8:36 am
Car: white s13 coupe
Contact:

Post

(403)S14 wrote:So I had replaced my fuel pump and when I did this, the old one was all rusty.

After I put the new one in, the car ran great for a few weeks. Now after 10 minutes of driving the car wouldn't pass around 4000RPM and it just kinda bogs like its hitting a wall...it still builds boost like normal .... but when i turn the car off and back on, it immediately runs great for 10 minutes then back to the same thing... bogging at 4000RPM and slowly gets worse and doesn't really generate boost...

So i checked the fuel pump because it is making lots of noise and the screen was already dark and looked a rusty color.... I had also recently put a manual boost controller on and ran it at 16lbs by accident for 10 minutes then set it at 13lbs for about 4 days.. this is when it started really acting up.. so i took the boost controller off and its still doing the same thing... I have no idea what the f**K is going on :S can someone please help!

:gotme
did the car ever sit for a long time? if its all rusty it prolly sat for a while with fuel in the tank and the moisture is rusting everything out
try doing all the above from the above poster and see if that helps


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