djathens wrote:
> I have an '88 CRX HF with 175,000 miles on it. The engine shudders
> pretty violently when the accelerator pedal is held at a particular
> spot in its range of travel. It occurs in any gear, at any RPM. It is
> more noticeable at lower RPMs probably due to the lower inertia of the
> reciprocating mass. If I press the pedal down past this point, say
> ~1cm, it goes away. Similarly, if I let up on the pedal the same
> distance, the shaking also stops.
>
> Car has new plug wires, new O2 sensor (Bosch), new distributor, and a
> MotorVac flush service done. Its also had a new timing belt put in and
> a valve adjustment done in the past 25k.I suspect it could be the
> throttle position sensor, but I'm not familiar with its construction.
> Is it possible that it could have worn out in this spot and is sending
> bad/no signals? Any other ideas?
>
> On a related or unrelated note, the car also idles erratically,
> sometimes too high (1100RPM), sometimes too low (250RPM), sometimes it
> bounces between 900-1100RPM. A Honda tech told me my accelerator cable
> was too tight. I haven't fooled with that yet.
>
first things first: check the ecu for error codes. go to tegger.com to
see how it's done. report beck accordingly.