JakexTrainer

As the title reads i just replaced the fuel rail/regulator with aem parts and FIC 1200cc injectors. After putting everything back together the car started up fine but i noticed a little fuel dripping out of the end of the rail where i didnt tighten the block off bolt enough. I torqued everything just to be safe. I attempted to turn the car on again and it just cranks and will not start. It sounds like its almost gonna crank up but then just doesnt. I dont want to keep cranking it without doing some diag on it. Anyone have any ideas? i pulled the plugs and they were pretty wet. one thing i know for sure is that the regulator was opened in the box before i recieved it. I dont have a fuel pressure guage so i cant currently check to see if its set to the proper fuel pressure.

the car is on the stock ECU..
i searched a couple threads but couldnt find anything that helped me directly.. thanks in advance for the help!

PureFunction

you cant run 1200cc injectors on the stock ecu. without tuning it will be using far too much gas.

JakexTrainer

well that explains it lol, i couldve swore i read somewhere that it would still run just a little rich.. either way i have an aem infinity 6 coming tomorrow so i guess ill just have to wait to tune it.. thanks!

flanders

If you call 330% more fuel a little rich then sure

JakexTrainer

gonna move this to the engine management section. thanks!

RolanTHUNDER

Can the car run/idle well with an AEM fuel rail, stock FPR, injectors and stock ECU?

kalm_traveler

only switching the fuel raid shouldn't make any real difference.

Correct me if I'm wrong but of the 3 physical parts you mentioned, I would expect injectors > FPR > fuel rail in that order to have an impact while running the stock ECU.

RolanTHUNDER

Thanks. That's what i thought.
I'm testing my new AEM rail and FPR but I'm going to try it with the stock injectors, ECU and FPR first before swapping the AEM FPR and Grams 1000cc injectors in with AEM Series 2 ECU when I install my supercharger.

Yeah the stock ECU cannot play nice with aftermarket injectors. The AEM FPR i have might ne faulty so I'm trying to detemine that before committing to it.