Resolved P1105 CEL

[Blakedwight4]

I have been dealing with a P1105 cel for over a year now, and have not been able to make it go away. I have replaced fuel pressure regulator, fuel filter, injector seals, vacuum lines, and even as far as the fuel tank, basically everything fuel related, and even tried bypassing the fps. Any help would be appreciated.

 

[steve]

It's been awhile but isn't this caused by the FPS solenoid being bad? I believe it's an electrical fault caused by the coil in the solenoid being bad. Bypassing the plumbing won't help and the same for the rest you've swapped.

 

[Blakedwight4]

It's been awhile but isn't this caused by the FPS solenoid being bad? I believe it's an electrical fault caused by the coil in the solenoid being bad. Bypassing the plumbing won't help and the same for the rest you've swapped.

Is there any way I’d be able to bypass the connection? Like a jumper wire or idk? Or is the only solution to get another solenoid. I’d rather not spend $50 just for the cel

 

[steve]

No bypass, You can search P1105 site:dsmtuners.com but I think all the successful resolutions involved replacing it.

 

[RamenPride]

Resolved - FPS Fuel pressure solenoid alternative

For those having a problem locating a replacement FPS (myself included), I may have found an alternative. These below are for a 00-03 Mazda Protege EGR solenoid. The one on the left matches a DSM configuration exactly and is about $20, the one on the right has the inlet port on the opposite side...

www.dsmtuners.com