I'm giving an old family car a refresh. Luckily got it with only 12,000 miles on it and it's the V6 tbi.

I've put a new tank in it, fuel pump and fuel sender unit, fuel filter, fuel injectors, new battery, and new rims/tires.

It's still not starting. Not even sputtering.

It has spark, as it runs on starting fluid and runs fine. Even sounds good and turns perfectly. I can tell compression is spot on but haven't checked compression. I didn't check with a fuel pressure gauge the psi but I took the fuel lines off from the throttle body and it sprayed and seemed with the stream it has it should be getting enough pressure to the injectors. Also noticed the vent hose from the tank has collapsed and I opened the gas cap to allow pressure to be released on tank.

Will the vent hose not bring connected to the charcoal canister stop the engine from running?

I checked the injector plugs with a noid light and they are pulsing but it seemed the injector pulse might have been weak like running at only 6-7 volts. I checked the new injectors with a 9 volt battery and they open.

What I'm wondering is once I re ground the engine to the firewall and engine to the frame and frame to the fire wall. Will this fix the injector pulse being weak? As I'm thinking the voltage is to weak to open them.

Any suggestions everyone? Also pictures or points where the ground wires for ecm and engine are located be appreciated!

Thanks in advance, and please help me out!

 

No.

Poor voltage does impact fueling accuracy. Fuel map correction based on voltage goes back decades in tuning. Why run with fettered grounding?

 

sounds like the injectors are stuck from sitting even though you state they are new-usual fix is to give top of each injector a firm bump with blunt end of center punch or similar implement.

 

I'm running new ground wires because mine are so corroded. Wasn't sure if it would stop the injectors from opening