1995 honda civic dx when starting in first the car jerks ...

Q: 1995 honda civic dx when starting in first the car jerks back and forth and sounds like its reving high then low then goes fine

asked by on July 25, 2017

when putting the car into first gear letting off the clutch and giving gas the car rpms sound like they are dropping and jumping back up car jerks as if its hesitating. when driving in a higher gear the car does fine until you let off the gas and apply gas again car jerks when doing so. i replaced the tps sensor checked the maf sensor by unpluging while the car is running and the car died so the maf is fine.
My car has a manual transmission.

This may be a sign of a faulty MAP sensor as the vehicle responds adversely to a load put on the motor (i.e. putting it in gear, making turns (which makes use of the power steering pressure switch) turning on AC or engaging the brakes). The Manifold Absolute Pressure (MAP) sensor senses engine load and generates a signal that is proportional to the amount of vacuum in the intake manifold. The engine computer then uses this information to adjust ignition timing and fuel enrichment. When the engine is working hard, intake vacuum drops as the throttle opens wide. The engine takes in more air, which requires more fuel to keep the air/fuel ratio in balance. When the computer reads a heavy load signal from the MAP sensor, it adjusts the fuel mixture to slightly more rich than normal so the engine can produce more power. The computer will then retard (back off) ignition timing slightly to prevent detonation that can damage the engine and decrease performance. This may also be caused by other closely related components such as a dirty or failing mass air-flow sensor, a faulty throttle position sensor or potentially a vacuum leak. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

My AC compressor works only 1 out of every 7 drives.. usually only in the morning. Relays and everything else is fine.

It sounds like you may have a damaged AC compressor or compressor clutch. As you may know the AC Clutch is the pulley that spins with the Belt. There are two ports on the rear of the Compressor. One is...

What do I do if the temperature gauge moves into the red?

Your Accord is equipped with a temperature gauge that shows you how hot or cold the engine coolant is. During normal operation, it should stay in the middle of the range. If it moves into the red, though, you need...

Steering wheel feels too loose

Steering components do wear over time, but what you're describing sounds excessive. The problem could be play in the steering gear and/or linkage. Your steering wheel connects through the column, to the steering gear, tie rods and finally the steering...

Related articles

2012 Mazda 3 vs. 2012 Honda Civic: Which One Should I Buy?
Compact cars are well-known for their cost-effectiveness, value and affordability as well as their small stature. In general, they make great commuter cars and are especially good for first-time cars for kids or college students heading out for the first...
2012 Jeep Patriot vs. 2012 Honda CR-V: Which One Should I Buy?
The mid-size SUV is a great vehicle for getting a lot of people from one place to another, with a decent price point and pretty good ongoing fuel economy. While they are never going to get the amazing gas mileage...
Top Automotive News & Stories: September 24-September 30
Angry Civic Type R, 350 special edition Ferraris, Infiniti variable compression tech, Mercedes' electric future, and more.