'Curly Q. Links' wrote:
> 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.
>
>
>
> ----------------------------------------
>
> If it had a Throttle Position Sensor in it, I'd vote for that, but it's
> too old for that, right?
>
> 'Curly'

curly, the o.p. /still/ hasn't bothered to check for codes afaict. in
my experience, tps problems /definitely/ show on the ecu.