the 02 sencers are in the pipe, if there is a problem with them it would cause the check engine light to come on but the pipes themselves wouldn't
On a 1997 Mercury Mountaineer : The " CHECK ENGINE " warning light is just to the left of the battery voltage gauge
my check engine light stays on and the o/d light blinks....what could this mean?
An engine misfire has been detected
If the check engine light is blinking that means that an engine cylinder misfire has been detected
No, oil level does not cause the check engine light.
The check " gage " light on in your 1997 Mercury Mountaineer indicates that either your engine oil pressure is LOW , your engine temperature is HIGH or your gas tank is AT OR NEAR EMPTY .
Yes, an unplugged sensor can cause a check engine light.
On a 2002 Mercury Mountaineer : The " check gage " light comes on if the engine coolant temperature is too high , the engine oil pressure is too low , or the gas gauge is at or near empty
The check engine light is just to the left of your battery voltage gauge in your gauge cluster . When you turn your ignition key to the run position , just before starting your engine , the check engine light should come on momentarily to check the bulb
An ignition misfire has been detected
Try disconecting the battery for 5 min.s and reconecting.
Yes, water can cause a misfire, which will cause the check engine light to flash.