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I have the same thing wring with mine. The auto place told me that the egr valve will make the o2 sensor seem bad, so now im going to change the egr valve and hope the o2 senor is still good.
Don't throw money at replacing something just yet...
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What else can I help you with?
Why does the check engine light come on a 2002 ford explorer after you have replaced the erg?
Assuming you mean the egr valve, I would make sure that you have the check engine codes cleared. In addition, are you sure that it was truly the egr valve, and not the DPFE sensor monitoring the valve?
I have a 1995 Chevy Beretta . What would make the low coolant light stay on when there is enough coolant in the car?
There is a sensor valve located inside the reservoir its may be bad
Will a defective EGR valve position sensor make the engine not start?
Unless the EGR position sensor is shorting out the 5V reference, NO. If you suspect the sensor, simply unplug it & see if the starts.
What would make an 88 Chevy camaro iroc-z sputter after replacing plugs wires rotor cap egr valve idle air valve fuel regulator throttle position sensor?
check and make sure your firing order is right and that you have correct gap in spark plug
How much are the valve and dpfe sensor?
The cost of a valve and a DPFE (Differential Pressure Feedback EGR) sensor can vary depending on the make and model of the vehicle, as well as the retailer. Typically, a DPFE sensor can range from $30 to $100, while a valve, such as an EGR valve, may cost between $50 and $200. It's best to check with automotive parts suppliers or online retailers for the most accurate pricing for specific applications.
What is DPFE sensor?
Dpfe sensor is the delta (differential) pressure feedback egr (exhaust gas recirculation) it monitors the pressure on the egr valve to make sure it is working.
Will a crank sensor make a car miss?
A faulty crank sensor would make the engine not run.
On my 89 gmc truck 5.7 v8 what could make it smoke really bad and run poorly?
o2 sensor bad rings or burnt valve or valve guide seals
Would a erg valve cause a dead battery?
no a egr valve would not make a dead battery. a bad alternator or maybe a bad connection post to battery would make it die ,
What would make a1998 Ford Escort zx2 die whole idlling?
There is a vacuum leak or the IAC (Idle Air Control) valve is bad.Or it could be your EGR valve, Mass airflow sensor or the O2 sensors. Most likely the IAC though. I am going through the same problem.
Does the engine on a 2003 impala knock in the top of the motor if the knock sensor is bad?
The knock sensor just advances and retards the engine timing only. If there is a noise in the engine then you have engine are valve train problems. The knock sensor will not make the engine knock.
What would cause your 2000 Impala with a 3.4 to not idle and sometimes idle very fast - you tried changing the PCV valve which seemed to help temporarily?
Check the EGR valve. also, make sure there are no vacuum leaks The engines mass airflow sensor(its located between the engine inlet and air filter)
