1994z

iTrader: (48)

starts then dies when switch is released. maybe one of the pink wires doesnt have power when key is released?

Smo's04Gto

iTrader: (8)

Vats?Mine will start and then die,if the vats box is not turned on.

Pocket

iTrader: (22)

Sounds like you're pulling IGN power from the starter solenoid wire

1994z

iTrader: (48)

got the box in the car to disable vats.

1994z

iTrader: (48)

will look into that tomorrow

bczee

iTrader: (12)

Make sure you have the correct power to the required PCM terminal.. you need direct 12+v to the PCM and also IGN 12+ in the run only. Check you wiring diagram for the correct type of power.

Not sure how the early 4th gens are wire at the start, but yes.. if you get power from the starter solenoid's smaller term's.. it will cut off power as you release the key from start to run.

the_merv

iTrader: (88)

Yea sounds like one of the Pink Wires isn't in the correct spot..

Pavetim

iTrader: (15)

Does it almost start then die, or run for like one second then die? Getting a security light on dash?

the_merv

iTrader: (88)

From what I get by what he said it starts when the Key is in the start position, but when you let it come back to the run position it dies.

1994z

iTrader: (48)

correct what merv said. does any of the wires from the two plugs on the wheel well need to be attached anywhere if the harness is a standalone system.

the_merv

iTrader: (88)

Well from what it sounds like the main Ignition Wire(s) is(are) connected to the one with the Starter..there should be only one wire coming out of the Ign Switch to the Starter, like 2 or 3 on the spot where the Key is in Run.

That or the switch is like really fubar..lol


What car is this?

1994z

iTrader: (48)

its the 96 firebird that i am doing the swap in. had a v-6 in it.

Wesmanw02

iTrader: (4)

I repaired an early 90's Honda Accord that exhibited this exact symptom.

I diagnosed it as a bad ignition switch, which was the problem.

1994z

iTrader: (48)

alright here is another one. checked fuel pressure good. checked each injector pulse and sprays a good stream of fuel, with a kent moore injector testor. if i bump the starter over a couple of times with out trying to start the engine, it will fire and run for about 4 seconds. then die, got it to run about 3 times like this before i quite for the evening. what should i look for?

thirdgengta350

iTrader: (4)

Hmmm. the symptoms definately point to bad fuel pump or clogged filter. but you say you have good pressure. what kind of pressure readings are you getting? all in all i'd probably have to say +1 on ignition switch

1994z

iTrader: (48)

new pump and corvette filter/reg. 55-60 psi on the gauge

thirdgengta350

iTrader: (4)

did you mess with the timing or anything to do with it lately?

1994z

iTrader: (48)

no. this is a new build.

thirdgengta350

iTrader: (4)

it's mind boggling to say the least. i'd just go through to check and re check all your wiring.

Wesmanw02

iTrader: (4)

Was the VATS light on while you were doing this??