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BankrateWhen the check-engine light flickers on your dashboard, don't stall. ... If you do not have Auto Zone call one of the other auto parts stores to see if they offer that service.... Catalytic converter is an easy fix; cut it out and replace with straight pipe.
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HOW TO RESET CHECK ENGINE LIGHT WITHOUT ON ANY TRUCKS ... Code Reader gives you correct error code readings and can do ... How to reset engine warning light Toyota Corolla VVT-i engine and fix ignition error.
This could be as simple as overfilling your gas tank, loose gas cap, or a loose connector somewhere. Then again, it could be a bad oxygen sensor, maf sensor, fuel injector, or intake manifold. Have you scanned the truck for any engine codes?
Running the engine while the check engine light is flashing can cause severe damage.You can burn valves or cat converters up and such. Catch it now before you need a new engine.
the code would have been due to the cap problem then the code will go away. Try
resetting the code. Also try diagnosing again after disconnecting the battery
and then reconnecting it after a few minutes.
You gas cap is not on tight enough to seal causing the Check Engine Light to come on. When you tighten your gas cap you need to tighten it until it clicks at least 5 times, if it is tight than the seal on the gas cap may be bad. Replace with a OEM GM gas cap or a quality replacement that meets OEM specs.
PO455 is a large evaporative fuel leak. A bad fuel cap is ONE of the things that COULD be the problem. Fuel system cleaning only lightened your wallet. Reading your post is confusing. Did all this start AFTER the Valvoline Wallet Flushing? If so , they left something loose or disconnected. I would find a qualified repair shop to fix the problem, and if it has anything to do with what Valvoline did, make them pay the bill.
Once you tighten the gas cap the engine light will reset itself after it has gone threw the necessary drive cycles, but only if the problem has been fixed. So yes if the check engine light came on for the reason of a loose gas cap, once you tighten it it will go off on its own.
The cap might need a pressure check. Just because it stays on and tight doesn't mean it is functioning properly. It must meet EPA standards to function properly. Your cap is special part of your emission system and if it is not working properly you will need to replace it and have the light reset. If you owed a code reader it would tell you the same. Auto zone does do free code reading. The check engine light usually is not a big problem,but... I will leave it at that.
i have a 2005 subaru sti my wife drove my car for two weeks and had same prob. it said gas cap but looking i found that lower octane gas she put also give the same prob. code gas cap. cheaper gas has alot of water try higher octane it took my car three days and fixed that code with the better gas
Even after your car's problem is fixed, the 96s (engine code M104) are notorious for taking an unusually long time to reset the "all clear" in their OBD (on board diagnostic) system. I had to get three 30-day exemptions from the TN agency's top mechanical advisor, who was well aware of this. The car has to drive a crazy drive cycle, which you can find by googling including the OBD2 and "M104 drive cycle" and I will try to find and post it here.
As for fixing the original light, go to Autozone or any chain auto parts store, they'll check and reset the light for ya FREE; write down the code and, if necessary, get the prob fixed. Sometimes it's just a loose gas cap, or an intermittent fault that'll not repeat, if you're lucky.