SOURCE: DTS-P 1404(EGR Valve)
unhook the battery for ten minutes and hook it back up... that will clear the code... if your stereo requires a code make sure you know it first.
Robert
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SOURCE: engine malfunction
Check for
vacuum leaks on intake manifold,
the air tube between the air filter.
intake manifold vacuum hose.
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clean throttle plate with Berryman carburator cleaner
SEE sample picture HERE
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Also remove carbon built up behind the EGR valve and the EGR passage tube.
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Vacuum leak WILL offset the intended 14.7 to 1 air fuel ratio.
More un-metered air (leaks) will lean out the fuel mixture.
Use small amount of Berryman carb clearer at potential air leak area will help you identify trouble spot.
At idle,just spray and listen for the RPM surge.
The in-rush of carb clearer will increase the RPM on the motor.
Record the problem spot(s) and address it later.
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EGR carbon built up require 2+ hours to clean from start to finish.
You will need a new EGR base gasket before your start.
Locate and remove the EGR valve after the vehicle is cool down.
Carefully record the connector and vacuum line (for older vehicle) location by drawing an easily to follow diagram.
Remove the EGR valve.
Inspect the location of the carbon built-up inside the valve and the EGR passage tube.
SOAK these areas with WD-40 spary.
You will need a small screwdriver,cloth hanger and lot of newspaper and time to get this cleaning done right.
RE-SOAK the carbon and let it sit for over-night will also help.
One the last round,pass a shop vacuum of the EGR valve and the passage pipe.
Install the new EGR gasket and connectors.
Allow the vehicle to warm up outdoor to burn up any remaining WD-40.
Take it for a test drive.
Please rate my answer if it's useful to you.
Cheers,
Mustgo
SOURCE: new egr valve code says closed pintle position.
You can remove the EGR and test with vacuum to see if it opens, it maybe carboned up. Also check the supply of vacuum to the EGR from the motor. The maybe a bad control vacuum solenoid, not allowing vacuum to open the EGR, when required.
SOURCE: i have 2 codes coming
Will most likely have to replace the egr solenoid assembly to cure the 1406 code. The 1886 is trans slip code.
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The Engine is the 3.8L V6 Series II
Codes: Not exactly Sure, didn't write it down, went by what the Dude said that Tested it...But I "believe" it was something to do with "57"?? Guess I could get it Rechecked.
OK, will Get it Re-Checked, AFTER the Large Snow Storm we are having, lol...will be in touch, & TY!
Had the DTC ran again. Came up with: P 1404; (EGR) Valve Pintle Stuck open
My Service Engine Soon light has been on for the past 3 months. I assumed that it was a defective EGR valve causing the problem, but I haven't had a diagnostic tester varify it. I am going to remove the EGR valve anyhow and clean it like I used to do on my 1990 Buick, and then replace it. I don't think the maintenance of the EGR valve is much different on my 2001.
Need the code's
What are the codes, what engine do u have?
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