Skip the auto shop - Our mechanics make house calls

Q: I have a b20b boosted Integra. Hesitating low oil pressure. Experiencing bad idle and backfiring. Can't drive it.

asked by on

I have a b20b turbo. Hesitating low oil pressure. Experiencing bad idle and backfiring. Can't drive it.

My car has 196000 miles.
My car has a manual transmission.

Hi there, thanks for your question. The rough idle and backfiring is quite possibly linked to a bad idle air control module. As you may know, this module regulates air intake at idle status, allowing for the fuel and air to mix properly before being injected into the engine. When this is not working correctly, it will cause a rough idle and, depending on the environment conditions, could also cause backfiring.

Typically, backfiring is a result of a lean air/fuel mixture and since your motor is turbo charged, you may know that with a turbo, you are adding a substantial increase in air flow into the motor compared to that of a naturally aspirated motor. With that in mind, it is crucial to be sure the motor is also getting enough fuel to balance this out. The backfiring may also be potentially related to a timing issue as well. Again, with any forced air induction system such as a turbo or supercharger, timing also changes as you are advancing the combustion process much fast than it normally would otherwise happen. When timing is retarded too much, this can cause the lack of power or hesitation.

I would recommend having an expert from Your Mechanic come to your home or office to diagnose and repair these rough idle and backfiring issues for 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!
  1. Home
  2. Questions
  3. I have a b20b boosted Integra. Hesitating low oil pressure. Experiencing bad idle and backfiring. Can't drive it.

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: Power steering fluid leaking

Hi, thanks for writing in. A stop leak will not hurt the pump, and can sometimes cure a power steering leak temporarily, but should not be considered a permanent fix. But it will likely be safe for you to go...

Q: I have a question about rough idle

A rough idle may be caused by many different things such as low fuel pressure, low voltage to the fuel injectors, dirty fuel injectors, a vacuum leak, a faulty Oxygen sensor or a dirty or failing idle air control valve....

Q: Glove compartment won't unlock

Hi! This issue is a common problem many TSX owners encounter. So common that the Acura dealerships began replacing the glove boxes under warranty claims. The warranty for the glove box replacement will extend up to 50,000 miles. The glove...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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 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.