i just got my motor together this weekend, its a 2.0 ls vtec, s2 s2 cams, 12-1 cr, 370cc rc's, when i go to fire the thing up it will just fire and die, i put a ericks tb on it with a stock tps, with my ls ecu the check engine light stays lit, with my jun p28 it flashes, both the throttle position sensor codes, after a little bit it will idle if you start it with your foot on the gas, when it idles its like it pulsates, almost like it is camming but i figured these cams wouldnt be making it sound like this, if anyone has ne suggestions please hook me up

 

1st you cant run 370cc injectors on a stock ecu
2nd youprobably didnt set the tps properly when you put it on that ericks TB

 

i would adjust the tps. it tells you how in the chiltons or haynes manual.

 

u will need a voltage tester to adjust it, also make sure u reset the ecu, I adjusted mine and didnt reset the ecu and the car almost died after I fired it up, rpms were jumping between 100 and 500 it sounded bad.

 

Like SGT says, you can't (successfully) run 370 cc injectors on a stock ECU. Even a chipped ECU will give you problems, unless the chip is specifically burned for your setup. You need some kind of programmable fuel management to compensate for those injectors. And, as stated above, you need to set your TPS. And your cams are not the problem, or even part of it. Up until this weekend, I was running those cams, and they idle like stock.

 

i was under the impression that i could use the 370's with a stock ecu or chipped ecu, i a fixing to call rc and talk to them and call ericks also, i just put the tb on by common sense because they didnt send ANY instructions whatsoever, i also have a vafc which i know i will have to turn down

 

even with the afc, its probably notgoing to run right.