having hard time to start my car

[nismo1003]

when it is cold , it takes maybe couple times to crank it up, when cold it takes maybe take less time, but till it is hard to crank it up. I am thinking these may be the problem cause? let me know what you think?

Injector leaking ? - would that cause alot of problem if it really happen? how can I tell if it's leaking? how can i test it?

Injector not working right - I got some 370cc regulate by the E-manage, but not sure if it works ? can I test if it's working properly ( testing the voltage or pluse right?)

MAF- I put mine before the compression side ? maybe because of that?

IAVV - I route that after the compression side? maybe because of this?

sparkplug - I got some NGK 1 step colder plug , would that be a problem too?

Timing - would that be becasue of my timing off a little?

I rev to 2000-3000rpm in driving condition, the car didn't want to go but when it hit boost , it ran so smooth no backfire the Rpm drop back to 2000rpm, it start back fire like crazy? what does that tell me? i know it is running rich , Is it because the injector leaking or not reuglation (e-manage)right?

my setupE-manageT3stock MAF370cc injector1 step colder ngk plug

[C-Kwik]

To test for injector o-ring leaks, you can disconnect the injector plugs, pull the spark plugs, and then turn on the starter. If you get a strong fuel smell out of the spark plug holes, you may have a leak. You may actually see fuel blow out of the hole.

Do you have an open or recirculated BOV? An open BOV can cause bacfire upon deceleration. Also make sure all your intercooler pipe hose connectores are tight. Make sure you use a wrnch to tighten them. Boost pressures can leak past the connectors if the clamps are tightened only with a screwdriver.

Just a couple of places to start.

[nismo1003]

I actally replace a set of new o-ring for the injector, can i test it with a fuel pressure gauge? cuz when I'm at start position( car is off) the pump is pumping till around 47-51psi and it start dropping to 0psi. is it normal? or I have a injector leak?

[nismo1003]

I want to know the "seal kit" that they sell in Autozone , pepboy come with the o-ring and the tip(yellow one) like the picture below

[rco8786]

You say that it doesn't want to go until it hits boost. Could it be that you are tuned too rich in the lower rpms and it doesn't run well b/c of it? although an injector leak could also look like your tuned too rich.

[C-Kwik]

Pressure should not drop. Sounds like you may have a small leak.Replace the O-rings again. Use a small amount of vasoline on them as you fit the injectors into the rail. You might have torn an o-ring when you put it in. The vasoline will dissolve in the fuel so don't worry about it clogging anything up.