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Check engine light stays on. Had code cleared 3 times and when I drive a block it comes back on. When it starts the engine surges on its own and sometimes quits.

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Perhaps you need to remember that the engine light is a victum and not a cause. Clearing the codes does not address the issue that caused it to come on.
Pull the error code and follow that indication. REMEMBER that codes are a CLUE and not necessarily the cause. For example, an intake leak will cause misfiring and that makes high hydrocarbons, and that may cause an oxygen sensor error, but the sensor being out of range is NOT the issue, but the result of the issue....

Follow the indications from the error codes. Reset, as you now know, does nothing.

Posted on Mar 17, 2011

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This engine has a surge; AT 35-45mph,it's a bit more prounounced, not as bad, but still there at 60mph. As the tach goes up some, then down, so does the motor, up then back down, etc.Any ideas?


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Feb 09, 2016 | Cars & Trucks

1 Answer

95 sl500 check engine light reset and comes back on after it sits over night. any idea?


What code is it throwing ? Some codes are what are called two trip codes ! You clear the codes an start an drive the vehicle ,no check engine light . Park the vehicle over night an bam next time you start an drive the vehicle the check engine light comes back on .

??There are two types of DTC's, 1 trip DTC's and 2

trip DTC's

??A 1 trip DTC is for a condition that requires

immediate attention such as a catalyst damaging

misfire.

??A 2 Trip DTC is one that a condition must be found

during 2 consecutive trips such as an EGR fault.

??Most Monitors do not set a DTC and light the MIL

when a vehicle fails a test for the first time during a

DRIVE CYCLE. If a test is failed on a second

consecutive DRIVE CYCLE the MIL will light and a

DTC is stored in the vehicles powertrain control
module (PCM).

Feb 07, 2016 | Cars & Trucks

1 Answer

Tps problem on a 2002 mercury sable


Then you did not fix the problem. Codes are not cut and dry, it can be the part the wiring to it or in rare cases a defective Powertrain control module (PCM)

Mar 28, 2014 | 2002 Mercury Sable

1 Answer

Daewoo Lanos check engine light stays on but no codes coming up. Is there a way to reset?


I suggest scanned the computer in order to know fault codes stored there, soud like a EVAp or Emissions failing.

If the Check Engine Light comes on in the city but goes off on the freeway, then the fault is present during city driving conditions. Pay attention to whether or not the vehicle runs or drives any differently when the Check Engine Light illuminates. If vehicle performance does change, drive the car as little as possible and take it to be checked by a service professional as soon as possible. If there is no change in vehicle performance, you can drive home, but have it inspected as soon as possible. In this condition, you run a risk of the vehicle dying or not starting.

* The Check Engine Light comes on and stays on.
If the Check Engine Light illuminates constantly during driving with no noticeable driving or performance problems, there is a permanent fault in the emission control system. When this happens, the computer that controls the emission system usually has a backup program that runs while the fault is present. (These backup programs are often referred to as "limp home" mode programs.) You should get the vehicle serviced as soon as possible, but in most cases, the vehicle will continue to operate, though you run a risk of it dying or not starting.



Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day

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3 Answers

My check engine light comes on and stays for a while than goes off I thought that I smelled rubber today, what could it be


have your obd II CODES READ this will give you more of an idea what is going on with it. most auto parts stores read these codes. If you are smelling rubber check your serpitine belt for where and if it looks good take the belt loose and check the rest of the components that the serptine belt runs on altinator, water pump,powersteering pump, pully tensioner, other pullys ext.

Mar 21, 2011 | Chevrolet Aveo Cars & Trucks

1 Answer

Accelerator has surged many times, sometimes while


Did the 'Check Engine' Light come ON? Whenever the 'CHECK ENGINE' light comes on, the ECU (Engine Control Unit) sets a Diagnostic Trouble Code (DTC). These codes identify the particular engine management system which caused the light to come on. You'll need to use/find an OBDII (On-Board Diagnostic) Scanner to retrieve any code which have been stored in the ECU computer. Afterward, we might be able to help you DIAGNOSE and perhaps eventually fix the problem.

Oct 06, 2009 | 2006 Hyundai Sonata

1 Answer

I have engine light on and code 1457 on 1999 Odyssey.Please help!!!!!!!!!


That code is "evaporative emission control system leakage. (evap. canister system)"

this code takes at least two drive cycles to set. You can try to reset the engine light and emission computer and clear the code and see if the code resets. If it stays clear, it was probably a spurious code. To reset the engine light and emission computer, pull the No. 13 "clock/backup" (7.5A) fuse in the front passenger's kick panel fuse box. Wait at least 10 seconds. Put the fuse back in. This should put the check engine light out. If the light comes back on after two drive cycles (that is; start, run for a while, turn off X 2) have it checked out by a mechanic.

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1 Answer

Engine light comes on 2003 Jeep grand cherokee laredo


Check the Fuel Pump Relay, it may be malfunctioning and need replaced. Also, in some vechicles, if the batter is disconnected and reconnected, the service engine light will come on from time to time, going off and on simultaneously. Have a diagnostics done to see if any codes show up. If no codes appear, then have them all cleared and drive for another 200 miles. Sometimes the computer will need to be cleared a couple times before the light will stay off. Make sure that all fuses and relays are good, and securey in place. Check all factory installed lights to make sure they are good, and securly in place as well.

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1 Answer

Check engine light came on my 2006 Kia Rio : diagnostic code p0496. What is this and what does it mean?


that code definition is "Evap high purge flow fault". It means you may have a problem with the evaporative system. this system routes fuel fumes back to the fuel tank. If you want to try and clear this code, find the radio code for your car and then disconnect the battery for 30 seconds. Reconnect the battery and the check engine light should be out. You will then need the radio code to reset your car stereo. the check engine light may stay off if the condition was a transient one. If not, the light will come back on after you drive the car two drive cycles. That is: two starts, warm ups and shut downs. If the light returns, have a mechanic check it out.

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3 Answers

Diahatsu YRV Engine system Code P1346


i have got the same problem with terios
i fix it with multiscan plus and gives me p1346 valve timing
i erased it but it comes back again !!

Aug 14, 2008 | Daihatsu Charade Cars & Trucks

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