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Check Engine Light
The check engine light comes on in a car when the engine is experiencing a problem. Ask questions here about your car's check engine light.
500 Questions
What makes your coolant light come on when you step on the gas?
Asked by Wiki User
Low engine coolant--when you step on the gas water pump runs faster and is calling for more coolant--check level
Why does your 88 RX7 idle obscenely high...like 5200 RPM?
Asked by Wiki User
When this happens its usually when there is air getting in to the engine when there shouldn't be
try to look in these areas...
possible vacuum leak - to idle that high it would have to be a very big vacuum leak
throttle plates sticking - not likely but does happen. you will have to take off the inlet ducting to varify that they a closing properly.
check ov the intake system to check that air can not get into the engine any other way other than through the throttle body.
after this check if there are any error codes.
check fuel pressure - shouldn't be higher than 50 psi.
if that doesnt shed some light on the situation hook a boost gauge up temporarily and see what the engine is doing - then give it a little rev see what the gauge does and then work from there.
hope this helps.
AnswerWhen this happens its usually when there is air getting in to the engine when there shouldn't betry to look in these areas...
possible vacuum leak - to idle that high it would have to be a very big vacuum leak
throttle plates sticking - not likely but does happen. you will have to take off the inlet ducting to varify that they a closing properly.
check ov the intake system to check that air can not get into the engine any other way other than through the throttle body.
after this check if there are any error codes.
check fuel pressure - shouldn't be higher than 50 psi.
if that doesnt shed some light on the situation hook a boost gauge up temporarily and see what the engine is doing - then give it a little rev see what the gauge does and then work from there.
hope this helps.
BEST ANSWER
When all vacuum leaks have be addressed and fixed.(COLD START SCREW "BETWEEN THE TPS AND IDLE SCREW" - JUST TAKE IT UP JUST UNTIL IT DECIDES TO NO LONGER ADJUST, THEN SCREW IT 1/16 OF A TURN AND LOCK IT DOWN).
Now it's time to baseline your Idle (make sure car is at operating temperature)
1. On top of the upper intake, there is a screw which is your idle adjustment screw. Screw it to the right until it can't go anymore(DO NOT TIGHTEN)
2. Adjust your TPS to the left as well (Just to the point where you no longer see it adjusting and then screw it to the right 1 - 1-1/4 turn.)
3. Start your car and if it drops and dies, adjust the idle speed screw to the left a little at a time.
Repeat step 3 until it finally fires up and stays on. Look at your tach and set it to 750 - 1000. I set mine at 1000 bencause it's smooth and i have a good throttle response at that but you set where you feel comfortable.
What is the proper fuel mixture for a McCulloch Mac Cat 38cc chainsaw engine?
Asked by Wiki User
40:1 with high quality 2-stroke oil mix would be fine.
http://store.chainsawr.com/
Why does the check gages light on your 1994 silverado come on and the oil presure gauge is going up and down?
Asked by Wiki User
the oil presser going up and down is why your check guadges light is coming on.. probly need a ned oil pump but check the sender first, much easer and cheeper to replace..
What should you do if your 2002 Silverado is misfiring and the Check Engine light is on after using a bottle of fuel system cleaner?
Asked by Wiki User
Take it to Auto Zone and have the codes downloaded and read.
AnswerIf you download the codes (as above states) and they are too cryptic to decipher, then:Could be any or all of the following:
Fuel pump - not working at full capacity
Fuel lines - restricted somewhere
Injectors - clogged ( or still clogged in your case)
Connect a fuel pressure gauge to the fuel line just before the throttle body and see if you are getting enough pressure (15psi). If not, then your fuel lines should be inspected and if they are OK (which is probably the case) then the fuel pump should be replaced. If the pressure is good then you most likely have a problem with the injectors. These can be replaced at a cost of a few hundred dollars or so.
also if you have the avability of the a tech 2 after checking the fuel system first to check the injectors you want to prefrom what is called an injector balance test, which will test each injector for it proper function. But normally if you have a misfire use the tech 2 and look at engine misfire this will tell you which cylinders are misfiring check the plug wires with a approved spark tester and then you might want to pull the plug and visually inspect it also
check your fuel pressure regulator 1st then injectors, independent ingnition koils, then your fuel pump( the fuel stst. cleaner could have knocked a piece of carbon lose in your injectors and is npw cloging it. O yeah check your pcm
I had my engine swapped and got the same code reading. So we put in some high octane race fuel to clean out the engine. And yes it did work!
What should you check for a P260F Diagnostic code?
Asked by Wiki User
This is a powertrain code that signals an evaporation system monitor performance issue.
What does check engine light mean on a 2002 ford explorer sport trac?
Asked by Wiki User
The check engine light comes on when the engine computer has detected a malfunction and set a trouble code.
Why does my check engine light blink on and off on my ford f-150?
Asked by JENNIFER6632
The computer illuminates the "check engine" light when it detects a condition needing attention, such as a faulty sensor. The computer will FLASH the check engine light when the condition is significant and should be addressed immediately.
You can purchase, rent or borrow a computer code scanner at most auto parts retailers such as Checker Auto Parts or Auto Zone.
How do you reset the Service Engine Soon light on a 2005 Buick Rendevious?
Asked by Wiki User
You will need a OBD2 reader to reset it. They can be obtained for less than $50 at most auto stores. Alternatively some auto parts stores will read and reset the codes for you free.
Why does the check engine light flash on a 2003 Pontiac Sunfire?
Asked by Wiki User
If a check engine light is flashing that means an engine cylinder misfire has
been detected
Will the check engine light come on if you do not reset the maintenance light?
Asked by Wiki User
No. There is a problem
Can you turn back light skinned if you turn light brown and you a black person?
Asked by Wiki User
There is a disease/condition called "vitiligo" that usually shows up as a patchy loss of pigmentation.
If that's not what you're talking about, I don't understand the question. As nearly as I can figure out, you're claiming to be a "light skinned black person" who "turned light brown", which doesn't make a great deal of sense to me.
Where is the service engine light chip located?
Asked by Wiki User
There is no chip it is controlled by the ECU.
What oes lest too light winning make the prize light mean?
Asked by Wiki User
It means, we value the things we have to work for far more than we value things that are just given to us. If something is very easy to get, we don't give it the same value we give things that we work very hard to achieve.
