Skip the auto shop - Our mechanics make house calls

Q: Misfire on my engine and I am getting an injector code 27. (OBD1)

asked by on

Code 27 all injectors ohm OK at 14.5 all injectors noid light all make a difference in how car runs. Could my pcm cause this problem.. I checked all wiring to pcm and asd relay to be sure so I don't know what else is left to replace beside pcm.

My car has 150000 miles.
My car has an automatic transmission.

A: Hi there. The injector output driver is no...

Hi there. The injector output driver is not responding properly to the control signal. Check the wiring from the computer to the injector driver. If the noid light is flashing erratically, then the controller (computer) is not functioning correctly. You can have the computer flashed or replaced. If you need further assistance with your injectors not firing correctly, then seek out a professional, such as one from Your Mechanic, to help you.

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: I put a new computer (PCM) in the car and now it won't start.

Hi there. When you had the computer shipped to you, first thing to ask is if the computer was programmed to your vehicle. If the vehicle was no programmed, you will have to get it programmed at a dealership. If...

Q: Loss of power in acceleration

There are a number of things that may cause the car to hesitate when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position sensor or potentially...

Q: Car won't start in cold weather.

Hi There, When you start your car in the morning and turn the key to on, the coolant temperature sensor immediately reads the temperature of the coolant and relays this to the computer indicating that the coolant is cold. The...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...