Skip the auto shop - Our mechanics make house calls

Q: Car won't start no power to injectors

asked by on

Parked truck about 2 hrs later wouldn't start towed it to my garage starter was bad I replaced it still wouldn't start but then it would crank and try and turn over it even started just wouldn't stay running checked all fuses and relays noticed the plugs were dry and tested injectors none of them were getting power. It starts with starting fluid so Thought it was the computer so I replaced it now it won't even turn over put old computer back in still won't do anything.... Help!!!
My car has an automatic transmission.

Hello.

No power to the fuel injectors can be caused by a few things. If the relays, fuses, and computer all check out then I would move on to looking at the engine management and fuel system. It may be possible that one or more engine management sensor, perhaps the cam, crank, or throttle position sensors, have failed and are giving a bad signal to the PCM. The PCM uses these sensor inputs to properly trigger the fuel injectors, and in some cases will disable them to protect the engine, if a major issue is detected.

A no start condition can also be caused by a faulty fuel pump, or any of the associated components. I would verify that the pump is operating, and that it is providing the required pressure for correct engine operation. Finally, it may also be possible that the vehicle is experiencing some sort of wiring issue that is preventing it from starting correctly. If you decide to get this fixed, consider YourMechanic, as one of our certified technicians can diagnose your starting issue firsthand and suggest a fix from there.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car won't start; jiggled fan sensor and it started

Hello there. Many different components can cause the vehicle not to start. The most likely causes of a no start are the battery, starter, wiring issue, battery cables or many different sensors. If the wire has wiggled, you may have...

Q: I have a check engine light on due to the catalytic converter. Can I still drive?

Hi, thanks for writing in. I'd be happy to offer my insight about your catalytic converter warning light. The catalytic converter as you may know is what converts toxic exhaust gases into less harmful materials to be expelled into the...

Q: Fornt Upper Control Arm Replacement Price

Hi Bill. I've forwarded your inquiry to our sales and service department. They will be able to outline what the estimate covers so you can make an informed decision as to how to proceed.

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...