Trouble code P1410 and P1411

[mdoan]

I got codes P1410 and P1411 from my 97 avalon...Egr valve position sensor circuit malfunction and performance.
Any suggestions on how to fix these problems?
Thanks

[chronoti]

well since your in la you can't bypass the egr or else you fail smog time. so you can take the egr valve off the car and try to clean it. i'm not sure on what to clean it with you can try searching the site.

[mdoan]

Originally posted by pgmomni
this part has been listed as a common failed part.
also remember that smog system has a
mandated federal warranty for like 100K!

not sure where you find that info but i did read it somewhere.

pete

my car has 115k miles already...i dont think it's under warranty anymore.....thanks for the advice....I'll try to remove and clean it before taking it to a mechanic so he can rip me off.

[mdoan]

Originally posted by mdoan
my car has 115k miles already...i dont think it's under warranty anymore.....thanks for the advice....I'll try to remove and clean it before taking it to a mechanic so he can rip me off.

I took my car to a mechanic over the weekend...and he said it's probably the vsv egr is bad....I haven't check the resistance on it yet..
Does anyone knows if this is a common failure for this car?

[Phi]

^ yeah, VSV failures are pretty common. If you do a keyword search using "VSV" you'll come across a few.

[mdoan]

disconnected the egr valve position sensor..measured the resistance...it's 4 kohm...within spec.
removed the vsv egr......checked for continuity between terminals...yes...measured 30 ohm..within spec..
What else should I check?

Originally posted by mdoan
I took my car to a mechanic over the weekend...and he said it's probably the vsv egr is bad....I haven't check the resistance on it yet..
Does anyone knows if this is a common failure for this car?

[mdoan]

i have my friend haynes repair manual for camry 97 to 2001 models...it doesn't have error code p1410...could it be p0141..which is oxygen sensor?

Originally posted by mdoan
disconnected the egr valve position sensor..measured the resistance...it's 4 kohm...within spec.
removed the vsv egr......checked for continuity between terminals...yes...measured 30 ohm..within spec..
What else should I check?

[mdoan]

Hello...some help here!
Guess no one has these problems with their cars....

[mdoan]

thanks for replying to my need for help.
that's what my tech told me also....based on his experience with others avalon....but i wanted to verifying like the manual said...
By chance do you know the part number and where i should order online to save some money...
thanks again...

Originally posted by pgmomni
my egr vsv, egr modulator and my egr all check out but i keep
getting the p0401 insufficient egr flow error.
i even ran my car with the egr valve off to verify i was getting exhaust gas thru the tube to the egr.

on another thread a tech said the egr vsv is the mos tcommom problem even if it passes the tests in the manual.

i'm going to order one soon and see what happens.
pete

[mdoan]

I have the 97 avalon manual...like you said (on page eg-314) to check the voltage between terminal VC of wire harness..then check the ecm connectors voltage bet EGLS (+) and E2(-)....
Then how do I know what I need to replace?

Originally posted by csaxon
p1410 EGR valve position sensor circuit malfunction.....diagnostic order...open or short in egr valve position sensor circuit, egr valve position sensor, ecm.

p1411 EGR valve position sensor circuit range/performance problem...diagnostic order..egr valve position sensor.

Disconnect the vacuum hose from EGR valve. Disconnect egr valve position sensor connector. Turn ignition switch on. MEASURE VOLTAGE between terminal 1 of wire harness side connector (terminal 1 is the far left terminal) and body ground. Voltage range 4.5-5.5v.
If voltage is out of range or dead then you have to check the ecm connectors voltage between EGLS(+) and E2(-) while applying vacuum to the egr valve with the ignition switch on. EGR full closed voltage should be .04-1.6v.. Egr full open 3.2-5.1v.

You checked the egr valve position sensor 1.5-4.3kohms is the range.

[mmzcamry]

I have that same exact problem at the moment on my 2000 v6 camry. Im gonna get it fixed on friday and Ill keep you informed. Shouldnt be tooo expensive or a big hassle.

[mdoan]

I checked the harness side connector...it's 4.8 V...within spec.
Now I need the check the voltage between VC and E2 right?
I have to figure out how to remove the glove compartment to get to the ECM...
All connectors are good ...no corrosion....I'm not getting other codes beside P1410 an 1411

Originally posted by csaxon
mdoan, you said you checked the egr valve position sensor and it was within 1.5-4.3kohms. Follow the procedure I gave to check the harness side connector. If the voltage is not 4.5-5.5v and you did the other egr sensor test then you have a wiring problem between the egr sensor and the ECM or a a bad ecm. Possible loose connector wires at the sensor. Look for corrosion or contacts that aren't making good contact. Look at the middle connector(E2) the sensor ground connection on egr sensor. Wiggle the wires etc. The last test step I gave you above will confirm the status of your ECM signal. Did you have any other DTC's before this?

[mdoan]

I like to thank you for your patient....helping me through these problems...where do I check EGLS+ and E2- ???is that at the ECM end? Like you said if there a short or open in the harness betwwen ECM and valve postion sensor....then what do I do next?

Originally posted by csaxon
No, that's the last step. You can do it with ignition switch on and it should show the same voltage that the harness connector did because thats the other end of the wire harness.
If you're positive that the egr valve position sensor checked out then the next step is the one I gave above to check EGLS+ and E2-. That will confirm proper signal with valve open and closed. I suspect a short or open in the harness between ECM and valve position sensor (egls or e2line.)

[mdoan]

I like to thank you for your patience....helping me through these problems...where do I check EGLS+ and E2- ???is that at the ECM end? Like you said if there a short or open in the harness betwwen ECM and valve postion sensor....then what do I do next?

Originally posted by csaxon
No, that's the last step. You can do it with ignition switch on and it should show the same voltage that the harness connector did because thats the other end of the wire harness.
If you're positive that the egr valve position sensor checked out then the next step is the one I gave above to check EGLS+ and E2-. That will confirm proper signal with valve open and closed. I suspect a short or open in the harness between ECM and valve position sensor (egls or e2line.)

[mdoan]

No...I have not clean the egr valve...should I?
I can borrow the vacuum tester from autozone...I think.
What is CEL...sorry?

Originally posted by csaxon
mdoan, did you try cleaning the EGR valve or testing it with a vacuum tester such as the mityvac? Do you still have a CEL? Have you tried clearing it?
Yes the ECM connectors behind the glove box are the next step and you'll need a hand vacuum pump like the mityvac to do the test. You're entering the can of worms (wires) phase. A toyota dealer can do all of this in about 10 minutes with his vetronix Toyota scanner. If the test fails then you have to check for a short and open in the harness and/or connectors between the ECM and EGR valve. That involves some long wire with probes to check from the sensor connector (engine compartment) to the ECM harness (glove box).