1998 S10 runs rough just off idle, chugs

1998 CHEVROLET TRUCK
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LENNY ANDERSON
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1998 chevy s10 2.2 liter, standard transmission, 248,000 miles the truck has run fine up till this time. i have replaced spark plugs, spark plug wires, o2 sensor, and the catalytic converter, now i get codes p0404 and p0405, which i believe are egr related. I am stumped, any help would be great thanks
May 7, 2006 at 8:58 PM
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KENVCR
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Your codes are correct.
You need to stop spending money on things you do not need.
REPLACE YOUR EGR VALVE AND THE SMALL VACUUM LINE. Make sure you also install a new gasket. Torque the nuts or bolts to exact specs for your engine.
Unplug your battery for 2 to 3 minutes to clear all codes stored in the computor and restart.
Let us know what happens, good luck.
Kenvcr
May 9, 2006 at 12:38 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.