Skip the auto shop - Our mechanics make house calls

Q: TBI issue

asked by on

There is no fuel at the TBI.

Hello! There are a few things that influence the signal to the TBI (Throttle Body Injector) that I recommend checking. First, the distributor, which has a magnet in it that tells the TBI to inject fuel when it passes a certain point. Then, the ignition module, which also tells the TBI when to inject fuel, and finally. the oil pressure switch will cuts off fuel supply if the oil pressure too low.

A faulty oil pressure sensor, for example, may trick an engine into thinking it is low on oil. Your particular vehicle has a safety feature in which the oil pressure switch will tell the vehicle to cut fuel supply if it senses a low oil level. I suggest having a technician, such as one from YourMechanic ,check the components I’ve listed for faults. They should also test the ignition module and oil pressure switch using a multimeter for incorrect resistances and voltage readings.

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: put bad gas in it started to run rough then wouldn't start. replaced clean tank out, replaced fuel pump and filter, pressure regulator

You may have contaminated and clogged the fuel injectors. You can try and clean the injectors if you can get it started, or you may need to replace the injectors if you cannot get it to start. Make sure the...

Q: Cranks fine but wont start

There is quite a large number of possible issues that will cause a no start condition. There could be a bad fuel pump, bad spark plugs, faulty ignition coil, or a failed camshaft, or crankshaft, sensor. Any of which will...

Q: throttle body replacement - new part is differnt

Hello, thanks for writing in about your Ford Mustang. From what you've described, the two lines are coolant lines and not vacuum lines. You can hook the two lines together or plug them. The coolant lines to the old throttle...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.