Aloha HIIC,

I have an issue and given my severely limited knowledge with wiring and such, I'm tapping you folks for some help.

My car has started to idle pretty rough and even stalls out at a stop. Power became low and erratic.

I was able to limp my car home and pulled two codes:

P0230 - Fuel Pump Primary Circuit
P1446 - P1446 Subaru - Fuel Tank Sensor Control Valve Circuit Low

My car is a 1998 2.5RS with a 2004 WRX swap.

Does anybody here know how to go about this? Any help would be greatly appreciated. Mahalo in advance.

You can either reply to this thread, or contact me at 389-2162.

--Josh

 

Potential causes of a P0230 code include: Short to ground on control circuit Fuel pump control circuit open Short to battery voltage on control circuit Harness chafing causing one of above conditions Bad relay Bad PCM

Command the fuel pump on and off by using a scan tool or simply turning the ignition key on and off without starting the engine. If the fuel pump activates and deactivates, then start the vehicle and measure the current on the control (ground) circuit for a couple of minutes. It should be less than an amp and stay less than an amp. If it doesn't then replacing the relay is a good idea at this point. If the fuel pump won't activate and deactivate, then remove the relay and visually check for discoloration due to heat or loose terminals. If okay, install a test light between the control circuit ignition feed and ground driver terminals (If you're not sure, don't attempt). The test light should illuminate when the key is on or the fuel pump is commanded on. If it doesn't, then make sure there is voltage on one side of the coil (switched ignition feed). If voltage is present repair the open or short on the control ground circuit.

Read more at: P0230 Fuel Pump Primary (Control) Circuit Malfunction
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Hardwire the pump if you continue having issues. Did you use the correct fuel controller, the one from the WRX?