Originally Posted by smj999smj
A flashing CEL means that the ECM is currently detecting a condition that may be damage the catalytic converter, which is often due to a misfire issue.
here in Canada it's called "Malfunction indicator lamp" and this is straight from my O.M.
|ENGINE | Malfunction indicator lamp
| SOON |
"If this indicator lamp comes on steady or blinks while the engine is running, it may indicate a potential emission control malfunction.
The malfunction indicator lamp may also come on steady if the fuel filler cap is loose or missing, or if the vehicle runs out of fuel. Check to make sure the fuel filler cap is installed and closed tightly, and that the vehicle has at least 3 gallons of fuel in the tank.
After a few driving trips, the "Service engine soon" Lamp should turn off if no other potential emission control system malfunction exists.
The malfunction indicator lamp will come on in one of two ways:
- Malfunction indicator lamp on steady - An emission control system malfunction had been detected. Check the fuel filler cap. If the fuel filler cap is loose or missing, tighten or install the cap and contiune to drive the vehicle. the "SERVICE ENGINE SOON" lamp should turn off after a few driving trips. If the "SERVICE ENGINE SOON" lamp does not turn off after a few driving trips, have the vehicle inspected by a NISSAN dealer. You do not need to have your vehicle towed to the dealer.
- Malfunction indicator lamp blinking - An engine misfire has been detected which may damage the emission control system. To reduce or avoid the emission control system damage:
- do not drive at speeds above 45 MPH(72Km/H)
- avoid hard acceleration or deceleration
- avoid steep uphill grades
- if possible, reduce the amount of cargo being hauled or towed.
The malfunction indicator lamp may stop blinking and come on steady. Have the vehicle inspected by a NISSAN dealer. You do not need to have your vehicle towed to the dealer.
Now this is straight from a Ex-Nissan Mechanic/Dads good budd. He said you should NOT drive the vehicle at all, as it can destroy your engine...
also for your car. does it idle every rough? like it wants to stall out? and sounds like it knocks almost? and moves very slugish, and when stopped if you do not press down on the gas slightly to keep the revs up it will/has stalled?
Like I stated in the other post. (I just tried my link and it came up dead, here's the fixed one)
if it has. just look at your negative battery cable. the - cable connects in 3 places. to the body/chassis, to the - battery post(duh) and to the engine/tranny. it is very common for the exposed copper from the end of the cable that is crimped to connect to the engine/tranny... it is common for the copper to oxidise and break free from the crimp and cause a ECU(Engine Control Unit) Short Circuit, or other potentially deadly problem
I will grab a few pics later of mine, and what happened to the coil packs as well to show people what I mean. now keep in mind this is from a 2004 Nissan Sentra 1.8L Base model. but 2000-2006 sentras are the same model type with few variants(body style,parts used, layout of said parts... etc) this is just for a general idea. My 2004's engine bay is laid out almost the exact same as a 2001 2.0 GXE I found before.