code 401 comes on when checking codes engine light comes on This is an airflow problem. Usually thought to be a EGR valve problem but the problem is the sensor not the valve. With OBD 2 you should ...
...code 401 as the problem.where should i start to correct the problem Check for vacuum leaks on intake manifold, the air tube between the air filter. intake manifold vacuum hose. === clean throttle ...
...401, 402, 607 i realize the first 2 codes are egr related but the 607 ecu performance issue sounds like im getting some false codes It is very possiable that you may be getting a false code that will ...
...code 401.. whats the prob? Everyone says to test out your DPFE sensor. This controls the flow of the egr. When the codes pull up, everyone thinks its the egr, but really its this little guy. Take it ...
...401 code have changed all emission parts and cleaned throttle body any solution Engine size? year? This code is for insufficient egr, usually caused by clogged egr passeges or a bad DPFE sensor. Open ...
...401 error code now the engine idles faster and 171 and 174 codes are showing up any ideas thanks g. 171/174 too much oxygen in the exhaust, sounds like you may have a vacuum leak after the Mass Air ...
401 code but can also make a 174. This only requires taking off the Airhorn from the Intake, cleaning the groove and replacing the gasket. Remember to clear the computer with either your scanner or by
Code 401. It can be a Solenoid valve failing to open, but many times it is a clogged passage as I mentioned. Sometimes a bad EGR has a ruptured diaphragm which can be checked by drawing the Vacuum out
Question about 2002 F150 Regular Cab
...401 code. The 316 is a random miss which leads me to believe to have a large vacuum leak which will explain the high idle condition. The iac can't slow the engine down if air is getting in after it. ...
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