Starts then dies
Instructor
Joined: Apr 2015
Posts: 153
Likes: 12
From: Savannah GA
How long does it run before it dies? If it starts at all, you have spark. I would suggest checking fuel pump, filter, etc.; you may have a fuel flow issue after the initial starting prime from the FI system.
Instructor
Joined: Apr 2015
Posts: 153
Likes: 12
From: Savannah GA
I'm still thinking you may have a fuel flow issue. Most FI systems have an initial "prime" when you turn the key, which may be getting enough fuel into the cylinders to get you started, but is not sufficient to keep it running. I'm not sure if the Cross-fire system in your '84 works this way or not. Either way, it sounds like your system is not maintaining fuel flow.
Last edited by bigtoys; Apr 6, 2016 at 04:35 PM.
Thread Starter
Cruising
Joined: Apr 2016
Posts: 13
Likes: 0
When it runs for 2 minutes, is the "check Engine" light on? if so, pull your codes and start there.
I'm still thinking you may have a fuel flow issue. Most FI systems have an initial "prime" when you turn the key, which may be getting enough fuel into the cylinders to get you started, but is not sufficient to keep it running. I'm not sure if the Cross-fire system in your '84 works this way or not. Either way, it sounds like your system is not maintaining fuel flow.
I'm still thinking you may have a fuel flow issue. Most FI systems have an initial "prime" when you turn the key, which may be getting enough fuel into the cylinders to get you started, but is not sufficient to keep it running. I'm not sure if the Cross-fire system in your '84 works this way or not. Either way, it sounds like your system is not maintaining fuel flow.
Thank you, I'll read the fuel pressure and see from there
1st Gear
Joined: Apr 2016
Posts: 1
Likes: 0
1984 c 4
My Vett turns over but dosnt start.replaced the fuel pump,fuel filter,relay for the fuel pump(?).The guy I got it from never had the ignition key so he jimmyed the ignition switch,wich he said it started and ran fine.But I have added gas TO the carbs starts but disnt stay on....Help please thats 84vettnm
