Check engine light P1105

[DSMnOOb00]

I can't seem to get rid of this check engine light, I keep getting a p1105 code, which I thought was the fuel pressure solenoid.

I already replaced the fps with a used one that I bought from another member here on the site.

Since I have my boost gauge tapped into the fps, I unhooked my boost gauge but I'm still getting the P1105 code

Any ideas??? Thanks

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[delta448]

I'll assume you have the boost gauge hooked up correctly. Clean/clear the vac line between the FPR and the FPS and double check FPS wiring harness plug. If that doesn't fix it, then he probably sold you one that wasn't any good.

 

[DSMnOOb00]

I have my boost gauge tapped in between the fps and the manifold

 

[007jimmy]

Its either no good or one of your vacuum lines are rotted/broken or there is something up with your wiring.

 

[DSMnOOb00]

I'm thinking it's the wiring since I already replaced the solenoid and the hoses look pretty good too... I'll replace the hoses with new ones just for kicks and see if that clears it, if not I'll confirm the wiring..

Does autozone carry vacuum hoses??

 

[007jimmy]

Yes you can get vacuum hoses at autozone. Buy a few feet, it's cheap and you can replace any suspect vacuum lines elsewhere.