Question about 1998 Honda Accord

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Code P1491 is EGR lift insufficient. It is usually accompanied by P0401. If you have a v6 Accord, there was a recall for the EGR port plugging. Check with your Honda dealer to see if your car is covered under that recall. If you have a 4 cyl, plan on replaceing the EGR. In addition, you need to clean the ports in the engine on the intake and exhaust sides of the EGR ports. To do this, spray some carb/choke//intake cleaner into the ports to saturate the black exhaust build-up. Later, jam a coat hanger or spare dipstick (or some long flexible metal rod) into the parts to break up the black deposits. When your rod passes through easily, spray more cleaner to pass it through. Reassemble and start the engine. It will run rough at first, so you need to give it gas pedal input to burn off the carb cleaner. You should be good to go.

Posted on May 26, 2009

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    Cynthia Manzella Apr 12, 2014

    Where are the ports in a 1999 Plymouth Voyager


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That particular failure has to do with your EGR valve lift being insufficient. The EGR has as lift sensor attached to the top of it and these sensors can go bad. You'll probably need to replace the EGR valve.

Posted on Mar 09, 2009


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remove the EGR valve and clean the carbon from the port it is connected to, they are known to get clogged up, you may also have a bad egr valve.

Oct 25, 2012 | 2000 Honda Accord

1 Answer

I am getting a little drag in my pick up speed. I had the code read and it came back as P1491. Is that a bad spark plug?

My 1990 Honda accord does the same thing.Found out the Distributor cap was off set.Now it's stalling before a light replacing a throttle position sensor good luck.

Jul 13, 2012 | 1991 Honda Accord

2 Answers

98 honda accord check engine light blinking and running rough

Take it to Autozone. They will diagnose it for free, and they won't make you buy the parts there.

Jun 21, 2012 | 1998 Honda Accord

1 Answer

My car turns off when i start slowing down or when im pressing on the break, i tested it and it gave me 2 numbers a P1491 and a P1456 my car is a 99 honda accord ex, a 4 door.

P1491 = Exhaust Gas Recirculation (EGR) Valve insufficient lift.

P1456 = Evaporative emissions (EVAP) control system leakage (fuel tank system).

Check the EGR valve for a failed vacuum diaphragm. Check the fuel filler cap to make sure it is the correct factory style, has a good check valve and is on tight.

Feb 26, 2011 | 1999 Honda Accord

1 Answer

What is DTC code P1491? 1997 Honda Accord

hi, "EGR Valve Lift Insufficient Detected" is most often caused by a broken vacuum line going to the EGR valve. So I would check all the vaccum lines to be sure they are tight and not broken.If the vacuum lines are good, you will need to check the electronics that operate the EGR system. thanks

Oct 26, 2010 | 1997 Honda Accord

1 Answer

T0113- t0141-To720-t1491 these are the codes to the problems of my 97 honda accord can u please tell me what the problem is read the code for me thank u

do you mean p....
there is only 4 letters for the first code numbers they are:
B,C,P,an U

intake air temperature circuit,high imput
02 sensor heater circuit malfunction (bank 1,sensor 2)
output speed sensor malfunction
is a enhanced code for honda
Exhaust gas recirulation (EGR)valve insufficient


Aug 25, 2010 | Honda Accord Cars & Trucks

1 Answer

I have a 2000 Honda Accord V-6 that had an engine light on code

check egr ports may be filled with **** or egr might be full of **** and need clean

Jan 08, 2010 | 2000 Honda Accord

1 Answer

Missing some was running great new plugs,cap etc. Maybe air leak? or defective ERG valve??

Check fluid levels and make sure they are topped off and not dirty.  Check ERG valve, check fuel filter, check air filter, check oxygen sensor, and check spark plug gap.  Also, hook this thing up to look for fault codes.

Nov 23, 2009 | 1991 Honda Accord

1 Answer

1998 Altima GXE has a code of P1491. It was

Code P1491 is not the PVC Valve.It is the Vacuum Cut Valve Bypass Valve.
Which is located above and away from the egr canister under the driver side rear bumper it is round and have about 3 hoses connected to it. if it is from a check engine light that says look at vacume cut valve check the egr canisters purge valve some times they stick and throw the wrong code

Sep 01, 2009 | 1998 Nissan Altima

1 Answer

ERG valve located on a 2002 Honda Accord ex 3.0 vtec

Right beloww throttle body toward front of car

Jun 18, 2009 | 2002 Honda Accord

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