Wont start after supercharger conversion , please help !!!!!!!!!!

[YILDI2]

hi guys i recently got my vr supercharged,
got 36ib injectors brand new on
got pacemaker extractor and 3 inch exhuast on
the mechanic had extended the wiring to the coil pack to relocate
and when they tried to start it on apparently turns over starts but wont stay on
so im guessing its the ecu shutting the car off
the injectors are pulsing so its not them, im thinking maybe a blown fuse for fuel pump ??
if anyone has any idea let me know please

[MR_VX]

is ur computer tuned for the injectors?

[YILDI2]

nah there not im awaiting a tune from delcowizzid

[YILDI2]

also ill add they removed my gas tank setup, and i think they somehow left it on gas, it was already disconnected since my engine rebuild but i remember accidentally bumping the switch that changes the car from petrol to gas and it did the exact thing it would turn on and then the car would shut down, now since they removed the wiring and all i reckon they may have done something like that and left it on gas, i told the mechanic 30 mins ago im going to call him soon and see if i was right because he hasnt been able to start it for a whole day now, they check fuel pump crank angle sensors and all that other stuff and their stumped and soo am i

[Raptorsc]

Can you shed a bit more light on what setup you have

What type of blower, is it new or second hand, how much of the tuning/fuel system was supplied

It is intercooled?

Do you have the 2 BAR map sensor

etc etc

[T3T4VT]

Could it be something to do with the Airflow sensor on the intake? That was giving me a hard time when i turbo'd my VT, car used to stall when the revs went over 2thou

[YILDI2]

Can you shed a bit more light on what setup you have

What type of blower, is it new or second hand, how much of the tuning/fuel system was supplied

It is intercooled?

Do you have the 2 BAR map sensor

etc etc

i bought a second hand powerdyne supercharger
came with the braket, pipe with bosch blow off valve, 9 psi pulley, belt
ordered the crank pulley, didnt come with any tuning or fuel pump if thats what you were asking raptor
2 bar map sensor its the stock ecu with a declo tune in that is going to be updated as i have a new one for this setup on the way
not intercooled yet

the mechanic believes its something to do with my tune as the car turns on but turns off straight after

[YILDI2]

Could it be something to do with the Airflow sensor on the intake? That was giving me a hard time when i turbo'd my VT, car used to stall when the revs went over 2thou

im not sure they did check many things such as crank angle sensor and relays etc.. ill ask to see if they checked the airflow senor aswell
but mines stalls straight after it turns on

[T3T4VT]

Did they tune it? If its still factory CPU it has a supercharger setting doesnt it?

[delcowizzid]

its eather drowning with the 36lb injectors or something to do with the gas my guess is the injectors fit the old ones will soon tell you

[delcowizzid]

are the coil packs bolted to metal

[YILDI2]

its eather drowning with the 36lb injectors or something to do with the gas my guess is the injectors fit the old ones will soon tell you

they said they completely got rid off the gas and re done the wiring/relay ?

injectors fit the old one ? im lost delco

are the coil packs bolted to metal

90% sure they are

[YILDI2]

Did they tune it? If its still factory CPU it has a supercharger setting doesnt it?

nah they didnt tune it mate has a old tune from delco that was for N/A, and he said he wouldnt expect it to run with the 36IB injectors on
but im getting a new tune off him which i hope will fix it all up, its just the waiting game thats killing me man, havent driven in more than 3 weeks its hard lol

[YILDI2]

update.. ive been told the car has been monitored by a computer to see whats happening, and apparently after start up the ecu cuts of the coil packs and the car shuts down, my mech wants to try the stock tune in the car and see if that works but odes anyone have any idea how else i can get it running until i receive my new tune from delco

[Raptorsc]

It should run but very rich and without stopping with the 36lb injectors, I think you have something else wrong, however to try what your mechanic suggests is a good idea

You make no mention of fitting a 2 BAR MAP sensor yet you are getting a supercharged tune, I think you better get a second opinion on that before something goes very wrong

To get this right you need the following items

36 lb injectors (you have)
2 BAR MAR sensor (you don't have)
A memcal with tune to suit 2BAR map sensor (you don't have)

[delcowizzid]

update.. ive been told the car has been monitored by a computer to see whats happening, and apparently after start up the ecu cuts of the coil packs and the car shuts down, my mech wants to try the stock tune in the car and see if that works but odes anyone have any idea how else i can get it running until i receive my new tune from delco

ecu has nothing at all to do with coil power

[YILDI2]

It should run but very rich and without stopping with the 36lb injectors, I think you have something else wrong, however to try what your mechanic suggests is a good idea

You make no mention of fitting a 2 BAR MAP sensor yet you are getting a supercharged tune, I think you better get a second opinion on that before something goes very wrong

To get this right you need the following items

36 lb injectors (you have)
2 BAR MAR sensor (you don't have)
A memcal with tune to suit 2BAR map sensor (you don't have)

i thought the ecu in my car would be able to handle 2 bars ? were can i get a 2 bar map sensor

[YILDI2]

ecu has nothing at all to do with coil power

ok im totally lost, maybe i misunderstood the mechanic but im 100% sure he said from the monitoring they can see the coil packs shut off after start and the car turns off aswell, but i cant see why that would happen, they tried another coil pack aswell same issue, maybe the loom they extended to the coil packs could be causing this issue ??

[delcowizzid]

could be if theres no earth on the pack it wont run

[YILDI2]

ive been assured that they have been bolted onto metal as i asked my mech, they were relocated possibly could be the problem i'll have a chat to him tommorow

[delcowizzid]

myself ide fit the stock injectors and drive it home if it goes can fit the bigger injectors when you get the tune its easy.if they fit the injectors and it doesnt go well its there problem

[YILDI2]

myself ide fit the stock injectors and drive it home if it goes can fit the bigger injectors when you get the tune its easy.if they fit the injectors and it doesnt go well its there problem

ok so if i chuck the stock injectors back on it'll run ? i think ill be able to handle putting the bigger injectors later on

and while im at it should i get a 3 bar map sensnor for when i might boost over 14psi ?
Alkycontrol 3 Bar MAP sensor: eBay Motors (item 220323188681 end time Oct-23-10 18:24:34 PDT)

sorry delco just cleaned out my inbox aswell

[delcowizzid]

get a 2bar its good for 14.7 psi its all you need

[delcowizzid]

GM 2 BAR MAP SENSOR W/ CONNECTOR KIT: eBay Motors (item 330462461532 end time Oct-17-10 22:01:22 PDT) autobarn sell them

[YILDI2]

ok thanks delco will do, ill get it from autobarn, i dont want to wait another week to get it on
ill let you guys know how it all goes on monday and thanks for all the advice guys