Light comes on stating the engine has reduced power and it slows down and wil barley go. when coming to a complete stop, and taking off agian it idles and jerks as i press the pedal. i can press the pedal all the way to the floor and it still doesnt go. tried unplugging the battery for a day and the lights went off until you press the pedal to far.
SOURCE: the check engine light illuminates,
HI...
THis problem is caused for
Lost of correlation between ACELERATOR PEDAL POSITION
AND THROTTLE ACTUATOR MOTOR.
Because your car has no acelerator cable.
The morer probable is the Trhottle actuator motor come damaged. 90%. 10% the accelerator pedal position.
If you turn of the car it will work OK> for a few time.
But the Service engine soon. will stay on.
Yuo can go to at ANy ADVANCE AUTOPART, AUTOZONE or NAPA AUTOPART. They make a diagnostic free.
If not. I recomend get the car scanned for see exactly why the light come on. and make the right repair procedure.
OK>> I hope this help on your question...
Thank you for use fixya.
SOURCE: Idle Problem when you slow down of come to a stop idle goes low
THis has happened to me in the past. My fix was to clean the throttle body. The problem began after my battery died. The computer was defaulted back to its original settings after replacing the battery. Once I cleaned the throttle body, everything was fine. This happened at about 85,000 miles.
SOURCE: 2004 chevy silverado
The above descriptions of the connector are very good. I washed the engine compartment yesterday, and immediately started getting the reduced enginer power code on the CIC, not performance. After reading several posts, I checked the connector on my 2003 2500HD, and found that the connector was not seated well and had gotten water in it. I cleared the water and the reconnected. The cables running from the fuse box to the connector are so short, the connector is in a bind and is pulled off-center. That is why the connector wasn't seated properly. The code went away, and the performance returned. By the way, be sure to do this after pulling the negative cable on your battery.
SOURCE: why does reduce engine power light comes on chevy
That is a hard problem to pin point without knowing what codes the computer has stored. It can be any number or sensors or engine problems.
You can go to most auto parts stores and they will pull the codes for you for free.
SOURCE: The "engine power is reduced" light comes on
po455 is Probable Cause[s]
1. Defective, loose or missing fuel cap
2. EVAP canister broke, hose cracked or not connected
3. Purge or vent solenoid defective
4 . Vacuum leak at engine po121 code po121 means Throttle Position Sensor/Switch A Circuit Range/Performance Problem . it is usually indicative of a faulty throttle position sensor or faulty wiring harness in the engine bay.
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