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 | Mazda Truck Forum - Mazda trucks, etc |
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06-14-2008, 09:35 PM
| #1 |
| Junior Member Join Date: Jun 2008
Posts: 3
 | EGR Flow Insufficient I have a 96 B3000. Has a slight rough idle and the code reader gave me P0401 which is Egr Flow Insufficient. I replaced that and cleared the code. Slight idle still there and code P0401 is back. Plugs and plug wires are recent. Fuel filter maybe? What should i check next? Thanks. |
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06-15-2008, 05:00 AM
| #2 |
| Senior Member  Join Date: Mar 2008 Location: North Carolina
Posts: 90
| some time the egr intake passage will become clogged with carbon you way have to unstop it |
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06-16-2008, 06:26 AM
| #3 |
| Junior Member Join Date: Jun 2008
Posts: 3
| Egr Thanks Papa Bear. One of the bolts was **** getting off and on, Is there an easy way to do this? |
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06-17-2008, 04:38 PM
| #4 |
| Full Member Join Date: Jun 2008
Posts: 32
| you will want to clean it with throttle body cleaner.You can usually clean the old ones.spray it and keep working the valve so it moves in and returns by itself.Spay the ports when the truck is running. I use a whole can on that |
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06-17-2008, 05:53 PM
| #5 |
| Senior Member Join Date: Mar 2007 Location: Buffalo Ny
Posts: 620
| The best way to do it is too just pull the manifold off and clean the passages. the carbon is very hard, and would like cause internal engine damage if the chunks were allowed to travel through the motor..
__________________ Joe 89 K2500 Chevy, Wee-Oh-five 285K miles, completly rebuilt needs a motor, bad 1962 IHC Scout All Wheel Drive (Scout speak for locking axles) 152 ci, dana everything else |
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