Turborl7

OK guys here's yet one last problem I need to deal with:

1) In the morning when I start my car...
2) I have an intank sump and pump and custom fuel lines to my FPR in the front of the car, therefor it takes a bit to deliver fuel to start the car. So the car starts and sometimes it idles between 300-600 or so up and down up and down. it feels like the car is going to die but it never does. This only happens sometimes. The bumpy idle goes away if I step on the gas a couple of times.
3) Also sometimes as I give the car gas directly after I start it to say 2500-3000RPMS to warm the car up the idle drops down and then car dies... Start car - idle - step on gas to 3kRPM or so - idle drops from 3krpm down to 0 - car dies. this has been happening more and more. I have 1200cc injectors brand new, my fuel filter has not been changed yet although I should since I have a new sump, my spark plugs might be a bit flooded or bad.

4) Next problem, when I start driving off after starting my car and warming it for about 2 minutes or so, at about 1500 rpms or so the car starts to break up, step on the gas and it doesn't go anywhere, sort of like the 3k hesitation, it just breaks up and backfires, it would do this for a while until the car gets really warmed up and it would go away... bad ground? I do have my battery relocated to the rear trunk its a Yellow Top Optima.

5) Last Problem, when I'm on 1st gear and sometimes 2nd gear, low rpms the car Bucks BAD as I engage the throttle. for instance if I'm coasting to a red light on 1st gear 1.5-2k rpms and it turns green and I step on the gas a bit it would buck, I mean stop and then go almost like I didn't know how to engage the clutch properly? Any ideas? If I step on the gas really hard the bucking is less but if i just give say 5-10% throttle it will buck hard.

Thanks for your help guys.

PraxRX7

I don't know much...but

sounds like you have a case of the dirty fuel filter, need new spark plugs and O2 sensor blues.

Try process of elimination, that is what I always do. (Also do oil change and check ignition timing (if spark plug change doesn't do anything)..also run some injector/fuel system cleaner through your fuel and take it on a full tank highway drive (the highway miles will be good for it).

Hmm...did you add anything with those new injectors? AFC? Proper re-tuning with the new injector size etc?

Turborl7

The injectors are 1200cc remapped and practically new, I have the Power FC and do have the 1200cc's as the secondaries in the Power FC, I recently plugged into the t04s map from Jason and the car runs better up top but still have these problems down low. I was running pig rich before so the plugs could be fouled. I've been boosting my car at spring rate about 9-10psi until I get the map fine tuned. most of these problems happen at low rpms when i start the car with the acception of the bucking which just happens.