HELP!! Check Engine Code P1491 Autozone doesnt even know what this is! - Honda-Acura.net

svaughan · 11-13-02, 08:46 PM

Hello,

I have a 1999 Honda Accord LX 4Cyl. The CEL is coming on, reset it, came back on. Took it to AutoZone, they read off a code P1491 (Secondary Switch Solenoid Circuit Malfunction). The AutoZone guy didnt know what this was. I've tried searching on this site and the internet and cant find anything on this!? Anyone had this?

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98CoupeV6 · 11-13-02, 09:10 PM

Only thing that rings a bell is the VTEC solenoid. Did you give your local Honda dealer a call or go look in an auto repair manual at the library or a book store? I really have no idea

smokedogg · 11-14-02, 12:18 AM

try your honda dealer....they specialize in hondas so they should be able to tell you what the problem is, whereas autozones see all different makes and models every day.

***94civicEX*** · 11-14-02, 01:51 AM

If it is the VTEC solenoid, it should be around $55 from your local dealer.

svaughan · 11-14-02, 09:08 AM

I'm trying to avoid taking it to the dealer ($$$), that's why I posted on this board. I'm going to run the codes myself with the paperclip/reading computer LED method to see what code I get. The car is out of warranty, hence I want to save money and do it myself. Thanks for the help so far.

v4lu3s · 11-14-02, 10:08 AM

thats an EGR code.
P1491 EGR Valve Lift Insufficient detected.

same as the OBD1 code 12

98CoupeV6 · 11-14-02, 04:51 PM

Quote:

Originally posted by v4lu3s
thats an EGR code.
P1491 EGR Valve Lift Insufficient detected.

same as the OBD1 code 12

My EGR on my old Accord went at 60k...costed about 200 bucks all in all.

green2dr · 11-14-02, 07:30 PM

http://mywebpages.comcast.net/jweller1/check_eng.html

Check it out and read it your self. you read the binks on the engine check light it self. After you figure out what the code is go to google.com and search for engine check codes for your car. Or just come back and post what code you got. I'll look it up for you.

svaughan · 11-16-02, 02:14 PM

Thanks for the help guys! I ran the code myself and it flashed off a "12". So, I guess this is EGR? Does this pertain to a certain part that i can replace myself or is it the system. I really dont want to go pay big bucks at the dealer if I can change some sensor out and be fine.

Thanks

98CoupeV6 · 11-16-02, 06:25 PM

Quote:

Originally posted by svaughan
Thanks for the help guys! I ran the code myself and it flashed off a "12". So, I guess this is EGR? Does this pertain to a certain part that i can replace myself or is it the system. I really dont want to go pay big bucks at the dealer if I can change some sensor out and be fine.

Thanks

The EGR is located in the headers...I'm not sure if you can replace it yourself easily, but the dealer did it very quickly. The part is the expensive thing...it retails at like 120 bucks I THINK. It may be a bit lower, I'm not sure.

v4lu3s · 11-16-02, 08:16 PM

the egr code is thrown by either the egr lift sensor on the egr valve which is on the intake manifold, sort of between the distributor and throttle body, or the egr control solenoid which is on the vacuum tube going to the egr valve.

99accord · 11-16-02, 10:12 PM

good to know

11-13-02, 09:10 PM	#2
98CoupeV6 lots and lots of fail Join Date: Dec 1999 Location: Deeeeeeeeeeeeeeetroit Posts: 23,000	Only thing that rings a bell is the VTEC solenoid. Did you give your local Honda dealer a call or go look in an auto repair manual at the library or a book store? I really have no idea __________________ 2003 San Marino Red Accord Coupe EX-V6 6MT IMM244k miles www.lemons300zx.blogspot.com

11-14-02, 01:51 AM	#4
*94civicEX* I got worms. Join Date: Jul 2000 Location: Utah Posts: 30,194	If it is the VTEC solenoid, it should be around $55 from your local dealer. __________________ 99 Integra GSR 06 TSX duck squad member #00003

11-16-02, 10:12 PM	#12
99accord www.poksquid.com Join Date: Oct 2002 Location: Guam/Las Vegas Posts: 733	good to know __________________ pok'squid limited alexia lei's official site kronik gamers

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11-14-02, 12:18 AM	#3
smokedogg Senior Member Join Date: Mar 2002 Location: Maine Posts: 471	try your honda dealer....they specialize in hondas so they should be able to tell you what the problem is, whereas autozones see all different makes and models every day.

11-14-02, 09:08 AM	#5
svaughan Junior Member Join Date: Sep 2002 Posts: 14	I'm trying to avoid taking it to the dealer ($$$), that's why I posted on this board. I'm going to run the codes myself with the paperclip/reading computer LED method to see what code I get. The car is out of warranty, hence I want to save money and do it myself. Thanks for the help so far.

11-14-02, 10:08 AM	#6
v4lu3s Senior Member Join Date: May 2002 Posts: 661	thats an EGR code. P1491 EGR Valve Lift Insufficient detected. same as the OBD1 code 12

11-14-02, 07:30 PM	#8
green2dr Member Join Date: Sep 2002 Location: LA Posts: 94	http://mywebpages.comcast.net/jweller1/check_eng.html Check it out and read it your self. you read the binks on the engine check light it self. After you figure out what the code is go to google.com and search for engine check codes for your car. Or just come back and post what code you got. I'll look it up for you.

11-16-02, 02:14 PM	#9
svaughan Junior Member Join Date: Sep 2002 Posts: 14	Thanks for the help guys! I ran the code myself and it flashed off a "12". So, I guess this is EGR? Does this pertain to a certain part that i can replace myself or is it the system. I really dont want to go pay big bucks at the dealer if I can change some sensor out and be fine. Thanks

11-16-02, 08:16 PM	#11
v4lu3s Senior Member Join Date: May 2002 Posts: 661	the egr code is thrown by either the egr lift sensor on the egr valve which is on the intake manifold, sort of between the distributor and throttle body, or the egr control solenoid which is on the vacuum tube going to the egr valve.