my girlfreinds 97 GSX threw this code 2 times lately..... i think it was P1105?? could be wrong but it is fuel pressure solenoid malfunction... i know its the one on the far right of the firewall, but i dont know how to fix it.... it only does it every now and then, when she starts the car, (sometimes) it will idle like shit, then it throws that code....after a while it runs fine and idles fine....is that solenoid just sticking open/closed? or is it something that im not thinking about....its a bitch because it only does it every now and then, so i never know if i fixed it...
doug

14b custom turbo kit, modified starion front mount, 9.6:1 JE pistons/Eagle rods....running 12psi
screw flanders

I have the same code....never cared..just kept driving..But I would like to know how to fix it as well if anyonce can tell me?

1997 GST Spyder
My car on

yeah, well we kind of need to know how to fix it because we cant pass emissions with it on...it hasnt come on within the last week...so maybe it was a fluke thing.... unless anyone knows the correct way to fix it
doug

14b custom turbo kit, modified starion front mount, 9.6:1 JE pistons/Eagle rods....running 12psi
screw flanders

Anyone ever figure out how to fix this?. I had it and it went away for a while then it came back so I changed the solenoid and cleared the code & it came right back?
Thanks

Did bypassing it make the cel go away?
Thanks

I bypassed it and cleared the cel, and it didnt com back right away like it did before. It looks like the boost gauge and another line that goes down behind the intake manifold are also connected to the same vacuum port, could that be the problem?
Thanks!

__________________________________________________________
-Tony <--- NOT asian.
'06 Wicked White EVO IX

The CEL is back with the solenoid bypassed ? any other ideas? Its not affecting how it runs but I would like to get rid of the CEL.
Thanks

Have you verified that the colenoid itself works? I know that if you unplug it, it will throw a CEL, so I would think that if it was not working, it would do the same. An easy way to check this would be to take it off and power it off of your battery and run a ground to it. As soon as the circuit is complete, you should hear a click. I would first make sure that it is connected properly, and make sure the connectors are clean. Hope this helps.

'95 GSX - New motor/turbo going in...
'95 TSi AWD - For sale...buy me!
'03.5 MazdaSpeed Protege - Stock daily driver
'97 CBR 600 - Purple is a real man's color

I switched the solenoid back to the other one I have but still bypassed it and cleared the CEL again, now it has been off for 2 days. Looks like its ok now.

99 GSX: 16g, Injen Intake, Greddy FMIC, RRE Down pipe, RRE UICP & LICP,
3" Test Pipe, 3" Apexi Cat Back, Greddy Type S BOV, Greddy Profec B,
Fluidyne Radiator, K&N Air Filter. Walbro 190 Rewired, Eibach Prokits, Tokico Illuminas.
ARP Head Studs, Adjustable Cam Gears, Energy Motor Mounts, B&M Shifter + Symborski Kit, DSMLinkl

Parts Not Installed Yet : EVO VIII 560cc Injectors, Fidanza Flywheel, XTD Stage 3 Clutch