Concerning my '09 Toyota Matrix (163k, 2.4L, FWD, auto, no OBDII codes) :
The car has a "dead spot" in its' throttle response. This occurs just above idle position of the gas pedal when accelerating from a stop.
Difficult to take off on snow or ice without wheel spin...
Is this a known problem? Any thing I can do?
Thanks in advance.
P.S. -Hi Scotty, I watched you for years and love your advice!
Sounds like fuel issue, check fuel pressure, or fuel filter. Try tune up clean mas air flow sensor.
Seems possible but the car runs so strong once it is underway!
Thanks for the tip.
Any other suggestions, guesses, or info?
Scotty?
Sounds like a problem in the throttle control system. Either the throttle actuator, or the pedal sensors. Have the OBD system diagnosed (even though you don't see a light on your cluster)
The first thing I did was run the OBDII codes with a good scanner.
Result: no OBDII codes.
I'm not talking about trouble codes. I would use bidirectional monitoring to graph the response of the pedal sensors versus throttle plate position.