2001 Odyssey Check Engine Light

2001 Odyssey Check Engine Light

Posted in the Honda Odyssey Forum

First Prev
of 2
Next Last
Steve

Chicago, IL

#1 Nov 16, 2007
My Check Engine Light is always on. Back in January 2006, I needed to pass the Illinois emissions test. The scan test came up with fault code:P0420 (67)- Catalyst Deterioration. Further testing procedures narrowed the fault to the oxygen sensors. So I had both sensors replaced and it cost me over $400. Shortly aferward, the light came on again. The fault code now was P1491 - EGR valve lift insufficient. So I had this replaced for another $150. I "passed" the emissions test because I paid over $500 to have the emissions "fixed." Of course, soon after I passed the test, the check engine light came on again and I've been driving with it on for the past two years with no problem. Now, I've got another emissions test and really don't want to waste another $500. Anyone know of a solution - it appears that the check engine light is signaling a false positive.
Paul

Glendale, CA

#2 Nov 24, 2007
Our 1998 Honda CRV's engine light came on and the dealer said that the code indicated that the catalytic converter needed to be replaced (CRV had 198k miles). We filled up with Shell gasoline and the light went off. The light went back on with other brands and off again Shell gas. I think that Shell, Chevron and Unocal all have a high level of detergents in all of their gasolines. Shell gas has saved us $1000 for a new cat and allowed the car to easily pass smog in California. Some of the big automakers will only use specific brands of gasoline when they run their cars for federal emissions testing - Shell, Chevron and Unocal are approved brands.
odysseydriver

Hitchcock, TX

#3 Dec 22, 2007
Steve wrote:
My Check Engine Light is always on. Back in January 2006, I needed to pass the Illinois emissions test. The scan test came up with fault code:P0420 (67)- Catalyst Deterioration. Further testing procedures narrowed the fault to the oxygen sensors. So I had both sensors replaced and it cost me over $400. Shortly aferward, the light came on again. The fault code now was P1491 - EGR valve lift insufficient. So I had this replaced for another $150. I "passed" the emissions test because I paid over $500 to have the emissions "fixed." Of course, soon after I passed the test, the check engine light came on again and I've been driving with it on for the past two years with no problem. Now, I've got another emissions test and really don't want to waste another $500. Anyone know of a solution - it appears that the check engine light is signaling a false positive.
I had similar problem: check engine light came on. Went to Auto Zone car parts store since all their stores have an OBD II reader behind the counter. If asked they will, FREE OF CHARGE, get the code out of the car's computer (the OBD socket is just to right of steering wheel under dash on my 2000 odyssey). My on-board diagnostics code was a P0420 ("catalytic converter bank 1 not efficient enough... blah, blah, blah"). The Auto Zone people can CLEAR the code if asked. They will warn you that "it will come back" if the fault is hard. It MAY NOT be a hard fault: it may not be the cat converter, it may not be either oxygen sensor, it could be an air leak, it could be bad batch of gasoline, etc. etc.--- all of which may produce a p0420 code. I then immediately did 2 things (based on advice from someone on the net): 1) put triple the amount of usual GASOLINE CONDITIONER into my almost empty gas tank, 2) went to the nearest SUNOCO station and filled up with Ultra 93 gasoline. Have driven some 120 miles so far and no check engine light. This suggests (does not prove) that maybe it was the gasoline I was using recently --- Going back to Shell I guess. Anyway, in the meantime I passed my state inspection.
Odyssey LX 99--CA

San Ramon, CA

#4 Mar 6, 2008
Our "Check Engine" light goes after about 40 miles of driving each time we reset it. PO420 diagnostics code.*Car passed smog pre-check.** Had full tune-up done. Had oxygen sensor #1 replaced. 100K miles on car. We're incredibly frustrated, because we know it can't pass the smog test in CA if the check engine light is on, even if it passes the smog test.
So, Belle Mead Steve, WHAT is the specific gasoline conditioner that you used--brand and type??
Any other suggestions out there??
Odyssey LX 99--CA

San Ramon, CA

#5 Mar 6, 2008
odysseydriver wrote:
<quoted text>
I had similar problem: check engine light came on. Went to Auto Zone car parts store since all their stores have an OBD II reader behind the counter. If asked they will, FREE OF CHARGE, get the code out of the car's computer (the OBD socket is just to right of steering wheel under dash on my 2000 odyssey). My on-board diagnostics code was a P0420 ("catalytic converter bank 1 not efficient enough... blah, blah, blah"). The Auto Zone people can CLEAR the code if asked. They will warn you that "it will come back" if the fault is hard. It MAY NOT be a hard fault: it may not be the cat converter, it may not be either oxygen sensor, it could be an air leak, it could be bad batch of gasoline, etc. etc.--- all of which may produce a p0420 code. I then immediately did 2 things (based on advice from someone on the net): 1) put triple the amount of usual GASOLINE CONDITIONER into my almost empty gas tank, 2) went to the nearest SUNOCO station and filled up with Ultra 93 gasoline. Have driven some 120 miles so far and no check engine light. This suggests (does not prove) that maybe it was the gasoline I was using recently --- Going back to Shell I guess. Anyway, in the meantime I passed my state inspection.
WHAT BRAND/TYPE OF GASOLINE CONDITIONER, PLEASE?
George

Kampala, Uganda

#6 Sep 29, 2008
Where is the location of the diagnostic socket for Honda Odyssey 2001?
Mi Yer

Saint Paul, MN

#7 Nov 14, 2008
i have an 01 odyssey that the light had turn on 80,000 mile. i don't know what is going on? i had reset it and it had turn off and then it had just turn back on.
i did a free check at a local auto zone and it had came on as p1298; electrical load detector circuit high input probable causes;
1.open or short circuit condition
2.failed ecm
are those list above a serious thing that could causes the car to do something wrong?
do anyone know what it mean>
topher_85

United States

#8 Jan 5, 2009
Road trip through TN, filled up car at half tank (98K mi). On way back, filled up at same stop in TN. Now 100% petro in tank (high % of ethanol). Immediately, TCS light and Check Engine Light illuminated. Called Honda repair immediately; they said we could continue driving and it would 'cycle' off after 3 cycles (presumption being several times driving - or is that 3 fill ups, I dunno). Only 17 days prior, the van passed Vehicle Emmissions Testing. Therefore, I don't believe it is due to a bad catalytic converter. Could be oxygen sensors affected due to high ethanol in 89 Octane petro? I may take to Auto Zone, get code, then add a cleaner additive. It is indicated on vehicle and rep advised that light may illuminate if gas cap is not put on correctly. That was not the case with our Odyssey. Suspecting high ethanol in fuel?
Check engine light

Sterling, MA

#9 Oct 9, 2009
How does one shut it off in a 2001 Honda Odyssey?
andy

New York, NY

#10 Oct 19, 2009
Believe or not, my check engine ligh on problem was fixed by using a bottle of fuel injector/valves cleaner ($8) in gas.
Mine is 2000 Odyssey EX, 100K miles. I tried disconnection of battery to reset the light a couple of times, no good. so before I went on a long trip in summer, I tried the cleaner, the light has not come on since. I always try any possible ways before I bring my car to a dealer. It's slaugter house there. I guess the light went on because some sensors was dirty somewhere??
andy

New York, NY

#11 Oct 19, 2009
Mi Yer wrote:
i have an 01 odyssey that the light had turn on 80,000 mile. i don't know what is going on? i had reset it and it had turn off and then it had just turn back on.
i did a free check at a local auto zone and it had came on as p1298; electrical load detector circuit high input probable causes;
1.open or short circuit condition
2.failed ecm
are those list above a serious thing that could causes the car to do something wrong?
do anyone know what it mean>
try a bottle of fuel system cleaner ($8) adding in before refuel. that is how my light stop coming on since.
Techdoitmyself

Lawrenceville, GA

#12 Nov 2, 2009
Steve wrote:
My Check Engine Light is always on. Back in January 2006, I needed to pass the Illinois emissions test. The scan test came up with fault code:P0420 (67)- Catalyst Deterioration. Further testing procedures narrowed the fault to the oxygen sensors. So I had both sensors replaced and it cost me over $400. Shortly aferward, the light came on again. The fault code now was P1491 - EGR valve lift insufficient. So I had this replaced for another $150. I "passed" the emissions test because I paid over $500 to have the emissions "fixed." Of course, soon after I passed the test, the check engine light came on again and I've been driving with it on for the past two years with no problem. Now, I've got another emissions test and really don't want to waste another $500. Anyone know of a solution - it appears that the check engine light is signaling a false positive.
First time do this, please buy the honda manual and the scan tool if you want to keep the van longtime mine is 170,000 miles my light is still on and i am working on it on code p0135 i tested oxyhgen sensors primary and secondary passed now the catalystic and evap setting readyness code. We built the machine so we can fix the machine right? scan tool Actron CP9180 Approx $130 but it works for all vehicles after '96. good luck.
Techdoitmyself

Lawrenceville, GA

#13 Nov 2, 2009
George wrote:
Where is the location of the diagnostic socket for Honda Odyssey 2001?
if you are the driver, it is right on your right knee. under the dash. it is a connector. i have 2001 odyssey also.
Techdoitmyself

Lawrenceville, GA

#14 Nov 2, 2009
What is the best way to Set Readiness Codes for 1-Catalytic Converter Monitor Code and 2-EVAP Leak Monitor Code. Please help.
xee

Bellevue, WA

#15 Mar 2, 2010
One thing everyone can try is fill up the tank with a couple Supreme gasline. I tried it on my and the check engine line went off. I also did it on my sister Sienna and worked, too.
01 odyssey dude

United States

#16 May 31, 2010
The simplest test would be to make sure that the gas cap is screwed on tightly. It says that in the owners manual under the check engine light.
Billy - Atwater

Stockton, CA

#17 Oct 8, 2010
I have 2000 Honda Odyssey LX. The check engine light came on several months ago. I followed what the handbook said "after 2 or 3 gas tank fills it will go off" and it did - for a while. Then it would go out and come on intermittently. For the last month it has been on all the time.

Went for smog and it failed, supposedly for codes P0401 (ERG flow insufficient), P1456 and P1457. The station said one of those codes was for computer, but in all his years working for Honda (he doesn't work there now, this was not a Honda dealer/station) he has only replaced 3 computers. He went ahead and replaced ERG VALVE (EGV658) and the AIR BYPASS VALVE (17310-SOX-A02).

It passed the smog test.

After 200 miles of driving the LIGHT IS BACK ON.

I have read the posts and will try injector/valve clean, fill it with Shell and disconnect the diagnostic connector under the dash.

Is it possible that they replaced good parts in an effort to fix the problem or were those codes indicative of those parts?

I dread to think what a new computer would be to replace. Anyone know the going rate? And can I change the computer myself?

Any other suggestions from the gurus in this forum.

Thanks.
Mike

Henderson, NV

#18 Dec 6, 2010
Test your drivers side Radiator fan by using jumper wires to the battery.
I just replaced the Radiator fan. motor on my wifes van & the P1491 has not come back on.
The P1491 code is for EGR or Radiator fan.
Burt McIntosh

Bradenton, FL

#19 Dec 8, 2010
The check engine light came on on our 2001 Odyssey at about 50000 miles. After replacing 2 pollutipn control parts and a $600 plus bill I drove it with the light on for 3 years. When I had some brake work done at a GM dealer they found the vacuum line to the fuel filler tube loose and refastened it and the light went off.
dave

Columbus, OH

#20 Feb 2, 2011
had 2001 oddeysey tested at autozone code p1457 came up any suggestions on how to fix and pass emissions test

Tell me when this thread is updated:

Subscribe Now Add to my Tracker
First Prev
of 2
Next Last

Add your comments below

Characters left: 4000

Please note by submitting this form you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

Honda Odyssey Discussions

Title Updated Last By Comments
My honda odyssey won't start (Jan '07) Tue Justme 38
looking for a "Plus one" seat for the 2nd row f... (Jan '08) Mon Anees239 6
'03 odyssey radio power problem?? (Jan '07) Aug 22 Carl 144
Odyssey 2005 EX-L, Passenger Sliding Door - No ... (Apr '12) Aug 20 Mr Noor 31
Sliding doors won't open from inside (Dec '09) Aug 20 Harryagapidis 3
cost of timing belt replacement (Mar '09) Aug 15 Karen 121
2002 Odyssey - Open Doors, Battery, Brake indic... (Jul '13) Aug 13 liner 7
More from around the web