I have had this problem on a 1998 and 2000 Chevy Venture and it was due to the seal on the gas cap. It caused the sensor to remain on due to allowing too much oxygen into the mix. I had to take it to a dealer to reset get it reset. Hope that helps. My problem was the catalytic converter (around 150000 miles). I am one of those guys that hate bringing any problem I have with my vehicles to a dealer or a mechanic -- Period. If your check engine is on and will not go off bring it to AutoZone or Checker (CSK Auto) and use one of their 'free' scanner tools to read the codes off the van, find out was is wrong, reset the light and repair the problem. ___________________________________________________________________________ I had this problem recently on my 2001 venture. The problem was the bank one Ho2 sensor was bad. This triggers the check engine light. After replacing the sensor (which was about $68.00),The problem was gone . Just remember to clear the code.Edubs
If the check engine light is blinking that means an engine cylinder misfire has been detected
disconnect the battery for 30 seconds
Disconnect the battery for approximately two minutes.
You need to hook the computer up to a scan tool to read the codes. That will tell you why the light is on.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Have vehicle scanned to determine the problem and have codes cleared
unhook the positive on the battery for 5 min. This should reset your check engine light if it doesnt then you still have issues.
If your Chevy Venture ABS light is on, that means that there is some type of problem with your anti-lock brakes. For the light to turn off, you will need to see a mechanic and have the problem looked at.
When the engine is not firing on all cyclinders or has bad spark or lean or rich fuel it will cause the light to flash. Mine did this and I had a loss of power. I replaced the spark plugs and wires. It stopped the light and I got my power back as well as got more mpg.
There are pages and pages and items that can cause a check engine light. You need to have it checked for codes with a scan tool. After repair light can be shut off with scan tool.
turn the key to the on position engine not running step on gas pedal to the floor three times and wait for light to flash and go out and its reset
it can be of all stupid things a improperly fasstened gas tank cap