I had this problem and it drove me nuts. Replaced coils, plugs. wires, fuel filter etc. Ended up taking truck to a good independent mechanic and he wiped the programing of the computer and started fresh with new programing. Haven't had a problem since. Never felt a misfire to begin with.
How can I repair the code po455 on my 2006 Chevrolet Silverado after replacing gas cap evap-canistor and a leak in a vacuum line.
Here is a video on how to fix engine code p0449
You will have to get a engine scanner and scan the engine. And it will give you the trouble code or codes, and then fix the problem. The computor is seeing a problem in the engine system or transmission system. Need to repair.
Trouble code P1258 means: Engine Metal Over Temperature Protection
Diagnose the problem and fix it
The cheapest way to go is to find a good used engine to put in it. By the time you fix your engine correctly you will have 2 or 3 grand in it.
Disconnect the battery. BUT you should have it checked. There's a code stored in memory that is needed to fix the cause of the check engine light being on. If you do the battery thing, don't take it to a service tech and say fix it until the light comes back on.
PO196 mercedes
Trouble code P1111 means: IAT Sensor Circuit Intermittent Voltage High
Rebuild trans. Pay someone to do it too.
Look for a leak in the port-side vacuum.
you have a leak in the port side vacuum. try spraying choke cleaner with the straw on the end around the vacuum lines with the engine running, when you hear the engine rpm raise you just found the leak....