So I installed some FIC 1050s and a walbro 255 today. I did the injectors first, car started right up and idled decently (for 3 minutes or so), i figured i had installed them correctly and moved on the the fuel pump.

I installed the walbro, again only with 1 little hiccup in the high pressure hose popping off because I didn't snap it on tight even, the car died and fuel went everywhere, i reconnected it and again it started right up.

About 5 minutes into letting the car idle it got really rough (sounded like my cams went from 272s to 290s lol) and started to blow some smoke out the tail pipe (smelled like gas and fairly black/grey ish in color)

Then i took the car out around the block to see if it ran good enough to limp it to a shop to get it tuned later in the week and the car runs like ****, it misfires, doesn't go above 3k rpm. During the drive it stalled once and didn't want to start back up again.

I figured the injectors would make the car run rich, but is this out of the ordinary?

 

Until you at least get your injectors scaled nothing is going to act right.

You did do that right?

 

Scaled? No, I'm waiting for a tune till Wednesday/Thursday. Won't that happen then?

 

Yeah it will but you increased the size of your injectors and the size of your fuel pump and you left the stock injector values. You are probably running rich as hell. At least look up Mellon's thread on injector scaling and try whatever is in there for the size injectors you have.

My advice. Don't drive it until you get a tune. Matter of fact ask the person tuning it to send you a startup map to at least get you to them so you don't do any damage.

There is such a thing as running too rich.

 

yea, you gotta get your ecu tuned for those bigger injectors man, i'd be easy on it til you get it tuned properly

 

Oh wow I just didn't think it would make the car almost un drive able, I just I'm gonna have to tow it to the shop or throw the stock injectors back on and have them put em in at the shop

 

I mean I obviously wasnt going to go out and rip on the car at all, I was planning on limping it to a shop 9 miles away to get tuned but I don't think itll make it

 

I understand but you doubled your injector size. Your ECU has no clue whats going on.

 

Just pulled a P0131 code, that has been on the car prior to injector and pump install

 

Yeah that

 

I just wanted to be sure that this is normal for installing injectors that are just shy of twice as big as the ones your car is tuned for

 

Take those injectors off, replace them with the stock ones, and have whoever is going to tune it reinstall them. You may want to get a new set of spark plugs as well and hope you don't wash down the cylinder walls with fuel (which will remove just about any lubrication in said cylinders) leading to much bigger issues.

 

yeah that's what I was thinking I was gonna do, do I need to store the injectors in any special way while they wait to get re installed by the tuner?

 

What mods are done? I am looking at getting the same injectors. So reading this I should have the tuner do the install and tune at the same time

 

Something reasonably airtight - a ziploc baggy would work fine, or at least that's how I've always stored mine. Never hurts to lube up the seals/o-rings with WD-40 or motor oil (hell, spit will work ).