I have a 2000 Civic, all stock. When I press on the gas pedal the car wont accelerate sometimes. Usually if I let up and press again it accelerates. The problem seems to be worse when the car is cold. I have changed plugs, wires, and tried different positions with the distributor, yet the problem persists. Any ideas? Thanks guys

 

Auto or manual transmission?

CEL codes?

 

Auto and I believe my CEL is burned out. I did have the local parts store check for codes and it turned out a code saying misfire for oxygen intake when it shouldn't have been getting any. My header was cracked, so I got a new one with no cracks. But it still has the issue.

 

Remove cat converter and drive it around the block to see if the issue is still there.

 

Is the transmission slipping?

Why? If burned out or removed, move one of the working cluster bulbs to that position until you get a new bulb.

Click the Codes link in my signature and learn how to pull CEL codes at home. Post the CEL code numbers.

 

Codes: PO133 Sensor 1 response malfunction. PO153 Sensor 21 Slow Response. PO420 Catalyst system efficiency below threshold bank 1. PO430 bank 2. PO705 Short in Transmission range switch circuit. PO706 Open in transmission range switch circuit. P1457 EVAP emission control system leak detected.

 

I spoke with a Honda dealership tech and they said if the car is not reving high when the problem occurs, then it is not the transmission. They suggested a throttle positioning sensor malfunction... To add to the description of the issue: I only experience this once per time I start the vehicle, typically on the second acceleration and only if I am accelerating slowly.

 

Reset the ECU to whether all or any of the codes return after a drive.

 

Update: I tried an easy fix and disconnected my oxygen sensors. The car now runs rough at idle but NO MORE problems with the acceleration. I guess I just got a bad oxygen sensor(s).

 

Thanks for all the assistance fellas.