Close
Help..check engine light when parked
1999 Honda Civic

Help..check engine light when parked

(1999 Honda Civic)
happens only when I am parked, have to disconect battery and like nothing happen, any idea that can help?
2 answers & 2 comments
Popular Answer
The computer in your car takes a look and looks that all sensors are in place and the circuits are ok, sensors have continuity through the circuits and winding of each switch or circuit, when the engine is running the computer tests their functionality and when certain criteria is met the computer tests the EGR, Emission Control System, and cat converter system. It is likely easy determine what is wrong with your car by plugging in a scan tool to the diagnostic port under the dash of your car and seeing what trouble code is stored. It is likely to be a sensor or wiring failure as opposed to an evap or cat converter low efficiency code.
Sign in to reply
on August 24, 2011
Finally find a smart mechanic..what a headache! The problem was with the throttle, was not opening like it was suppose, or too much air or not enough and he adjust a pin where the throttle is, took it off and a adjust a little bolt in the idle control valve. I really appreciate Patrick taking your time with me . God bless you. lily
General Diagnosis
$88 - $111 Learn More
The computer in your car takes a look and looks that all sensors are in place and the circuits are ok, sensors have continuity through the circuits and winding of each switch or circuit, when the engine is running the computer tests their functionality and when certain criteria is met the computer tests the EGR, Emission Control System, and cat converter system. It is likely easy determine what is wrong with your car by plugging in a scan tool to the diagnostic port under the dash of your car and seeing what trouble code is stored. It is likely to be a sensor or wiring failure as opposed to an evap or cat converter low efficiency code.
Sign in to reply
on August 24, 2011
Finally find a smart mechanic..what a headache! The problem was with the throttle, was not opening like it was suppose, or too much air or not enough and he adjust a pin where the throttle is, took it off and a adjust a little bolt in the idle control valve. I really appreciate Patrick taking your time with me . God bless you. lily
on August 25, 2011
ckeck out the code first, and you can use the jp701 to check out it...
http://chinasinoy.com/wholesale/maxiscan-jp701-code-scanner-reader.html
Sign in to reply
on August 25, 2011
thanks for taking your time...I will. Lily

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
I have a 2005 gmc yukon and sometimes i start it it cranks other times won't make a sound but lights will come on
Scanner detect idle air control valve, replace it and still get check engine light on. happen only when the car is...