Check Engine Light

P0444 Evaporative Emission Control System Purge Control Valve Circuit Open

A defective thermostat can cause the engine to overheat. It can also cause the engine to not reach full operating temperature if the thermostat is stuck open. It is possible this could set the check engine light.

There is somthing wrong ad u need to go to auto zone andhave them chek it for u it is fre

I had a similar ETC problem and after looking arround, found out that when computer receive a high voltage spike, it goes to failsafe mode and does not generate the trouble code. If look at the saved trouble codes with a scanner, you'll probably find codes that happened after the fact. (mine were two codes about throttle body actuator) After using a scanner with live data, I noticed an occasional misfire on one of the cylinders. It turned out that the coil was going bad and it would not misfire enough to trigger a code but under heavy load (like stepping on the gas) it will generate an spike and trigger a failsafe mode. Hope this is of some help.

Generally the check engine light will come on when the car is need of a tune up. It may run fine, however, the vehicle should still be inspected.

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.

A check engine light is usually a fail safe indicator that lets the driver know their is something wrong in the engine system. Most check engine lights can come on from something as minor as a gas cap being loose or something as major as pending engine failure. The best thing to do is to test the engine with a code reader in order to see if the vehicle should be driven.

I found the answer at http://www.obd-codes.com/p0601. It says that the Powertrain Control Module (PCM) needs to be replaced.

It depends upon the model. You can get it reset for free from AutoZone. Disconnecting battery for 5 minutes will do the job as well.

if alt and battery good. then there is a dead short in the switch .by the way have alt output checked i have had brand new alt's. that were duds and did not work right.

bad ground on battery or switch

Your car has an electronically controlled transmission. The computer will trip the Check Engine light when a problem is detected in the transmission. First check the fluid level as outlined in your owner's manual. Do Not Overfill!!!! If the fluid level is OK, then take it to a transmission expert and have it looked at.

The code P1887 is for torque converter clutch release switch malfunction.

We have a 2001 Daewoo Lanos 4dr and had a similar problem ever since we owned it. We had it in for service a lot of times, but the only thing that ever showed was a misfire in the cylinder. They even paid to have the heads re-machined at one point which never helped. Finally, we decided to start using 5W/30 synthetic oil on the oil changes which seemed to have worked. Prior we were concerned about driving the car too far from home, but we've driven it as much as 2 hours away. It costs a little more, but it's worth a try.

it DEFINATELY means she has been speeding, running red lights, winking at officers, and charging your credit cards for shopping without you knowing... uh, also... everyone should have a manual for their vehicle, and the library should have a professional shop manual available in the REFERENCE section...make copies of the right sections...good luck :)

It is on because the computer has detected a problem with the emissions system. Take it to a trusted mechanic for a scan and diagnostic of the problem.

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.

Problem with emission system - have vehicle scanned to determine problem

The check engine light comes on because there is some problem with the engine or some other componante of your vehicle.. You should take it to a mechanic to have the system checked.

There can be many reasons and they differ on different models, so without expertiese, it can be difficult to diagnose.

You have to repair the part that caused the light to come on.

Yes, it could.

Yes.

see related question below.

That is the check engine light.

See related questions below.

The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to a parts store or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.

Wiring or computer

These codes can be caused by aftermarket scan tools and also by unpluging the scan tool with out turning the key to the off possition.