A while back my check engine light came on and it would hard shift when starting off. I had a friend run a code to see what was wrong. The code said it was my speed sensor and needs to be replaced. I didnt replaced it cause 3 days later the light went away and it ran fine for about 6 months but just a few days ago the light came back on and 3 time after running my car there would be no trottle response. I would turn it off and re-start it and it would run fine but now the 4th time I tried turning it off and on about 10 times and still no trottle response. Please advise what to do next, thanks.
My car have no trottle response. on 2007 Toyota Corolla
by hawn_isle in Lihue, HI on April 29, 2013
ANSWER by msportdiv , April 29, 2013
Sounds like there is an intermittent problem. A loose abs speed sensor or bad abs speed sensor can cause the car to go into a limp mode which can affect throttle response and shifting. I would recommend to bring it into a knowledgable shop and have them lift it up and take a look at the sensors and make sure there is nothing wrong with the speed sensors themselves as well as the connection.
ANSWER by pushrod , April 29, 2013
Have a MECHANIC run a scan test on the engine! Possible throttle control system malfunction.