The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - lq4 cranks but won't start and I'm stumped

automagic67 · 04-27-2012, 08:02 PM

Hello,
I tried to start my engine for the first time yesterday. It cranked but did not start. I then sprayed starting fluid in the throttle body. It ran until the starting fluid was gone. This tells me I my ignition system is fine. Next, I checked fuel pressure. I have 50 psi at the rail. Then I pulled out 2 fuel injectors and manually made them turn on with some extra wire. They clicked on and off. Then I checked the pink(power) wires to the injectors in on and start. I have power. Finally, I checked that the ECU is grounding the other wire on the fuel injector connector with a test light. The light flashes when I crank the motor. Apparently my fuel system is fine but I still get no fuel. What could be happening? Any help would be greatly appreciated.

04-27-2012, 08:02 PM	#1
automagic67 Registered User Join Date: Apr 2007 Location: Las Vegas Nv Posts: 21	lq4 cranks but won't start and I'm stumped Hello, I tried to start my engine for the first time yesterday. It cranked but did not start. I then sprayed starting fluid in the throttle body. It ran until the starting fluid was gone. This tells me I my ignition system is fine. Next, I checked fuel pressure. I have 50 psi at the rail. Then I pulled out 2 fuel injectors and manually made them turn on with some extra wire. They clicked on and off. Then I checked the pink(power) wires to the injectors in on and start. I have power. Finally, I checked that the ECU is grounding the other wire on the fuel injector connector with a test light. The light flashes when I crank the motor. Apparently my fuel system is fine but I still get no fuel. What could be happening? Any help would be greatly appreciated.