2G P1105 P0105 Codes

[murcielago]

Hello Tuners.

So i have a little problem, with my fuel system *i should say*...

According to this Manufacturer Code: P1105, which is the same as P0105-which they both are -Fuel Pressure Solenoid Malfunction)..

Here is a bit of background of the fuel system stuff and about the car, car sat 1 full year on garage(working on it-bolt ons and such), had almost 1/2 a tank of fual in it, about a 1month before taking it out i put some additives, to help i guess?.....

Put a Walbro 255HP, re-wired. replaced stock filter with oem mits filter*, and the line from filter to rail, also have a Fuel Lab AFPR. stock injectors(for now) and stock rail(if it matters)... <-abut this AFPR, i adjusted the regulator with car idling at good temperatur(regular temps), with vaccum line off to 43psi, as soon as i put the line back on it drops to 35-40psi, most times stays at 40psi.. Also ain't i supposed to get pressure at the AFPR? when i turn the key to the ON position(engine off), the pump primes, bt i get no pressure reading at the AFPR gauge.. (The Car doesnt have problems to turn on!) ok. it turns over and starts right up just fine, but wondering why this..

But for now i need more importantly this engine light fixed, because i have to get the car inspected asap. the 14days started yesterday, so i don't want this at the last minute thing to happen..

Again the code is: P1105 Fuel Pressure solenoid Malfunction.. and it only comes on at start up not really while driving..

Thank You ahead for any input that will* help..

 

[blkgst97]

Those two codes you gave are not for the same thing, one I believe has to do with the maf. but if you are sure it is the code for the fps have you made sure it has a good clean connection and that the vacuum lines going to it are tight and in good condition ?

 

[LiquidX]

BlkGST said it right, that's about all you can do aside from trying a different one until you dig further in.

 

[murcielago]

Sorry guys, just got back to my PC, i was out working.. Yes "BLK", i made a mistake, it is 2 different codes, and the one it is actually the P1105 which is Fuel pressure solenoid, i checked the connection cleaned them and even replaced the vaccum line since it was cheap and put good ziptie on both ends, and nothing it comes back on after i clear it it comes back on like after 20-30miles of driving, sometimes at start up..

I was reading at another thread and someone took the vaccum lines from it and just looped a line from each end, and the AFPR goes where the other end of the Solenoid used to go. But that of course didnt work either...

also i checked to see fi it was getting power, -with key on i went to the plug one wire and i had power, and the other wire didnt, teh other wire didnt have ground nor power, just one side had power and it was with key on, I'm i supposed to get ground on the other side(pin-wire) of the connector? or just power on one side with key "ON-Position"..?

Any other suggestions?

Please..
& Thanks for Inputs!