View Full Version : wont stay started

11-09-2007, 08:01 PM
everytime i start my car i have to give it gas so it will stat started the idle jumps from like 500 to 1500 , mind u its a 2.7I and i have the mustang injectors in it, but why do u guys think it would do this

Chris de la Cruz
11-09-2007, 08:08 PM
did you have any tuning done with the injectors? ie chip? B/c you need a chip to run those injectors. Otherwise it sounds like the motor "drowning" with fuel.

What is your fuel pressure reading currently? what injectors were you running before?

11-09-2007, 08:38 PM
no i dont have that chip yat i now what one u are talking about and im going to get it ,will that make that much of a difference ,but i do think ur right with it drowning in fuel because when i do start it ,its spitting shit out the back,but my question is,is why does it only do it on start up cause when its been running for like 5 min the thing runs great ,

i have a baverian motors adjustible fuel pressure reg and i think its set to 46 psi

i also noticed that when i get on her and hit it sometimes she flys and other times it bogs at around 6000 rpm would all this be related


11-09-2007, 10:47 PM
Fuel injector upgrade goes together with fuel pump upgrade along with regulator. All need to work together. If you use upgraded BMW/Bosch injectors e.g. 19lb they would be plug and play in most cases.

11-10-2007, 12:12 AM
r u saying that there is something else wrong with the car because on start up it is not running right for sure,and i have a regulater and been adjustinging it and it dont do much

what would u think is wrong if its not the chip what else would there be

other options


Chris de la Cruz
11-10-2007, 02:10 AM
did you get the injectors flowmatched?

11-10-2007, 10:49 AM
I think you need to play with your fuel presure regulator

11-10-2007, 03:03 PM
should i set the regulater a lot lower then its stock position

11-10-2007, 04:37 PM
Go back to stock, and then try again.

11-11-2007, 02:40 PM
thats the thing i have it set at stock pressure but could it be feeding to much fuel at stock pressure due to the bigger injecters

11-17-2007, 11:09 AM
starting problems:
1. check the function of the cold start valve located on the intake manifold.
2. check the thermo-time switch on the thermostat housing.
3. check for vacuum leaks

for the other problems:
1. check for vacuum leaks
2. check the fuel pressure and delivery. inconsistent pressure=bad pressure regulator, insufficient delivery=need pump.
3. check the idle control valve