Question about Hyundai Accent
When i press on the gas pedal too fast the car refuses to accelerate and it downshifts right away, to be able to go over 60 kmh i need to slowly press on the gas pedal.
It sound like you have a vacunn problem, I don't know what year is your car, but basic trouble is your electric system don't reconize you want acelerate and don't change the timming spark.
Posted on May 09, 2014
YOU MAST HAVE A CHECK ENGINE LIGHT ON, HAVE SOME ONE READ THE CODES, IF YOU ARE IN WILMINGTON ma COME BY MY SHOP. Unique Auto Care
611 main street, 01887
if not go to a auto zone, get the code, I well say it is a bad Mass air flow meter or worst scenario a clogged catalytic convertor. good luck.
Posted on May 09, 2014
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Posted on Jan 02, 2017
SOURCE: 96 cavalier wont accelerate
You have may have one of the following issues, low fuel press due to a pump or plugged filter, a plugged exhaust system, mainly the cat converter, a defective MAF sensor. Do you have any trouble codes
Posted on Jul 31, 2008
SOURCE: Acceleration issue
Just a suggestion, but the EGR valve can cause that problem. If that checks ok, then I would have the catalytic converter checked for clogging. Both ideas would cause that specific problem. I sincerely hope that this can solve the problem, or at least head you in the right direction. Best wishes.
Posted on Jan 17, 2009
Check your MAF and MAP sensor. The first 80% of your throttle signal from the TPS works with the O2 sensor to try to keep the air fuel ratio to 14.7 to 1 with the ECM controlling the fuel injector spray time and timing the ignition. After the 80% to WOT the ECM puts the O2 sensor in to an open loop and takes the Reading form the MAF and MAP sensor to run the engine richer so there will not be any Detonation to the engine and burning holes in the valves for running too lean. That is why it always feel like you get a little more when you ease off on the gas peddle from WOT. Recap check the TPS, MAF,and MAP sensor and wires to those sensors, if you can get the car scanned that would be great and you may find out which sensor may have gone bad, the other thing to is the fuel pressure regulator may be going bad and at WOT the pressure may be to high causing it to run to rich causing the loss of power. Good luck and hope this helps.
Posted on Jul 04, 2009
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