Skip the auto shop - Our mechanics make house calls

Q: Slow acceleration after timing adjustment.

asked by on

slow acceleration after timing adjustment for smog to 10 degrees btdc could after speed after pushing to 1st gearr ( automatic) fail because of acceleration , Changed spark plugs situation got worse help shutting off can stay on

My car has 2246 miles.
My car has an automatic transmission.

There could be a knock sensor that is sending a false positive signal to the ECM. If a knock sensor detects engine knock it retards the engine timing to try to stop it. If the knock sensors are working good, then the timing is off and needs readjusted. If you need further assistance with your engine having a poor acceleration, 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: Car shaking badly, difficulty accelerating, wheels hot

You will need to have the brakes checked to see why the brake pressure is staying applied to the front calipers. It sounds like the brake master cylinder is not returning. There is a recall for the vehicle brake master...

Q: My Toyota Sometimes dies when I break or press the gas very slowly

Common causes of engine stalling and rough idle include a faulty mass airflow sensor, faulty engine coolant temperature switch/sensor (typically at cold start only), worn spark plugs, wires or defective ignition coil(s), inadequate fuel delivery or pressure (clogged fuel filter,...

Q: On a two-and-a-half hour drive, an orange Engine Light came on! Car was driving as normal with no noise!

Hi there. If the Engine Light has come on, it means that there is a problem within the powertrain that the computer has seen. I usually scan the computer for codes to see what comes up. The codes would let...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
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...